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Why Trust Diamond Certified Plumbing Companies Rated Highest in Quality and Helpful Expertise®?

Photo: Atlas Plumbing & Rooter (2011)

You are the customer. If your goal is to choose a plumbing company that will deliver high customer satisfaction and quality, you’ll feel confident in choosing a Diamond Certified plumbing contractor. Each has been rated Highest in Quality and Helpful Expertise® in the most accurate ratings process anywhere. And you’re always backed by the Diamond Certified Performance Guarantee. Here’s why the Diamond Certified ratings and certification process will help you find a top rated plumbing company and is unparalleled in its accuracy, rigor, and usefulness:

1) Accuracy: All research is performed by live telephone interviews that verify only real customers are surveyed, so you’ll never be fooled by fake reviews.

2) Statistical Reliability: A large, random sample of past customers is surveyed on an ongoing basis so the research results you see truly reflect a Diamond Certified company’s top rated status.

3) Full Disclosure: By clicking the name of a company above, you’ll see the exact rating results in charts and read verbatim survey responses as well as researched articles on each qualified company.

4) Guaranteed: Your purchase is backed up with mediation and the Diamond Certified Performance Guarantee, so you can choose with confidence.

Click on the name of a Diamond Certified company above to read ratings results, researched articles and verbatim customer survey responses to help you make an informed decision.

More than 200,000 customers of local companies have been interviewed in live telephone calls, and only companies that score Highest in Quality and Helpful Expertise®–a 90+ on a 100 scale–and pass all of the credential-based ratings earn Diamond Certified. By requiring such a high score to qualify, the Diamond Certified Resource eliminates mediocre and poorly performing companies. Read detailed information about the ratings and certification process.

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Mostafa Sowadah is a 10-year veteran of the plumbing industry and owner of One Source Plumbing and Rooter, Inc., a Diamond Certified company. He can be reached at (415) 340-2353 or by email.

Mostafa Sowadah

diamond certified contributor profile and expert article

Mostafa Sowadah: One Source for Success

By James Florence, Diamond Certified Resource Reporter

SAN FRANCISCO — Following high school, Mostafa Sowadah knew he wanted to get into a trade—it was just a matter of deciding which one to pursue. “When I was enrolling in trade school, I had the choice of going into automotive, plumbing or HVAC,” he says. “Based on what I saw most people signing up for, it seemed that plumbing was the least popular option. However, I’d always heard good things about plumbing, so I decided to give it a shot.” After finishing his two-year program at WyoTech-Fremont, Mostafa did a four-year apprenticeship with a local plumbing company and then worked another three years as an employee before starting his own business in 2013.

Today, as owner of One Source Plumbing and Rooter, Inc., Mostafa says his favorite part of his job is building relationships of trust with his customers. “The first time you do a job for a customer, they aren’t totally sure if they can trust you. However, when they call you again a couple of years later, it shows there’s trust because the first job didn’t fail. That’s a great feeling.”

A lifetime resident of San Francisco, Mostafa expresses his appreciation for the character of life and work in the City by the Bay. “There are three things I like about San Francisco: the diversity, as there are people here from all over the world; the nice weather, which is good for plumbers because we do a lot of work outside; and the simple fact that I’ve lived here my whole life and it’s home.”

When asked about a professional philosophy, Mostafa offers a simple guideline for ensuring quality workmanship. “On every job, I have the mindset that I want my work to outlive me,” he explains. “When your main goal is to build something to last as long as possible, you’re going to do a better job than if you’re just looking to make money. The great thing is that when you build something to last, your customers are going to be happy and bring you more business, so the money will follow naturally.”

When asked the first thing he’d do if he were to retire tomorrow, Mostafa says he wouldn’t. “That’s a tough one, because I’ve sort of become programmed to stay busy. I think it started during my apprenticeship, where for four years I worked six days a week, with no holidays or vacations. As soon as I finished it, I took a week-long vacation; the first two days were nice, but by the third day I was kind of bored. That’s why I’m not sure I could retire—I like being busy and I enjoy my work, so the idea of retirement just doesn’t appeal much to me.”

Ask Me Anything!

Q: What’s your favorite kind of food?
A: Mediterranean.

Q: Are you an early bird or a night owl?
A: An early bird.

Q: If you could time travel, would you go to the past or the future?
A: The future, just so I don’t have to worry about it anymore.

Q: What’s your favorite snack?
A: Chips.

Q: What’s your favorite thing to do on a rainy day?
A: Work—we get really busy when it rains.

Read more

Maintenance Tip for an Older Toilet


SAN FRANCISCO — If you have an older toilet, you may notice that you have to flush multiple times just to get everything down the drain. The likely culprit behind this issue is sediment: over time, the jet holes in your… Read more

Expert Video Tip

Video: Toilet Maintenance Tip

Complete Video Transcription:

SAN FRANCISCO — Host, Sarah Rutan: If you routinely find that one flush isn’t enough, you’ll be glad to learn about a simple solution for a common… Read more

Joel Ledesma is owner of Atlas Plumbing & Rooter, a Diamond Certified company since 2008. He can be reached at (650) 469-3933 or by email.

Joel Ledesma

diamond certified contributor profile and expert article

Joel Ledesma: A Fitting Career

By James Florence, Diamond Certified Resource Reporter

SAN FRANCISCO — Whereas many people discover their life’s calling early on, for Joel Ledesma, finding his niche as a plumbing professional came at the end of a lengthy pursuit. “I used to have a lot of dead end jobs—at various points, I was a bartender, a soccer referee and a massage therapist, but none felt like it suited me,” he says. “When I started plumbing, I could immediately sense something was different. It came easy to me, and it didn’t even feel like work. I enjoyed the problem-solving aspect, and it felt good to stand back and look at my accomplishments.”

Not long after starting a job with a local plumbing company, Joel felt the entrepreneurial urge and opened his own business in 2005. “By doing my own thing, I figured I could create an environment where I’d be comfortable and have greater control of things like pricing and customer care.” While he’d intended it to be a small, one-man operation, Joel soon found his business growing at a rapid rate. “At first, it was just me and a helper, but we started getting busier and busier. I never thought we’d get to be as big as we are now.”

Today, as owner of Atlas Plumbing & Rooter, Joel says he enjoys being on the cutting edge of industry innovation. “I like the challenge of learning new things and keeping up with the latest plumbing technology. Not only is it neat to see all the innovation, it’s also becoming easier to do what we do, thanks to advancements like trenchless sewer line replacement.”

As a resident of San Bruno (where he lives with his wife, Sarah; daughter, Julia; and son, Joely), Joel appreciates the perks of living and working in the San Francisco vicinity. “In such a large and old city, there’s no shortage of strange things for a plumber to come across. Every so often, I’ll see something I’ve never seen before, like a 50-year-old copper-lined water heater.” Joel says he also enjoys the close-knit character of his San Bruno community. “It’s a small neighborhood, so everyone knows each other, which I really like.”

Outside of work, Joel enjoys spending time with family and attending local sporting events. “I’m a sports guy, so I like going to Giants and 49ers games, but I also enjoy taking my kids to places like the zoo,” he says. Regardless of the destination, Joel’s outings also give him an opportunity to practice his hobby of photography. “I enjoy photography, whether I’m taking pictures of my kids, animals at the zoo or athletes at sporting events.”

In regard to his career, Joel espouses the importance of professional integrity. “If someone is unhappy with my service, I don’t dodge their phone calls; rather, I get to the bottom of it, even if it means refunding their money,” he explains. “I just want to be as fair as possible, which is something I think my customers appreciate.”

When asked what he’d do if he were to retire tomorrow, Joel says he’d transition into a full-time career as a stay-at-home dad. “I’d stay home with my kids, take them to school and pick them up afterward. I currently coach my daughter’s soccer team, so I’d probably be more involved with that as well.”

Ask Me Anything!

Q: What’s your favorite restaurant?
A: Trapeze Restaurant in Burlingame.

Q: What kind of movies do you like?
A: I like goofy comedies like “Dumb and Dumber” and “Ace Ventura: Pet Detective.”

Q: Did you play any sports in high school?
A: I played baseball and basketball, but I particularly excelled at soccer.

Q: What was your favorite video game as a child?
A: Super Mario Bros.

Q: If you could talk to anyone living or dead, who would it be?
A: Freddie Mercury, just because I’m a big Queen fan.

Read more

Testing for High Water Pressure


SAN FRANCISCO — Low water pressure is a common complaint among homeowners, but did you know high water pressure can be a problem as well? When the water pressure in a home is too high, it can cause your faucets,… Read more

Getting to the Root of Sewer Pipe Damage


SAN FRANCISCO — When it comes to preventing sewer problems, most people assume it’s a matter of not putting the wrong things down the toilet or sink drain. However, few realize that the primary cause of damage to a home’s… Read more

Expert Video Tip

Video: How to Prevent a Broken Sewer Pipe

Complete Video Transcription:

SAN FRANCISCO — Host, Sarah Rutan: Avoiding costly sewer line repairs in the future often means taking proactive steps today. We’re in San Francisco with Diamond Certified Expert Contributor,… Read more

Jonathan Millington is owner of Ace Plumbing and Rooter, a Diamond Certified company. He can be reached at (415) 523-0012 or by email.

Jonathan Millington

diamond certified contributor profile and expert article

Jonathan Millington: Crash Course to Success

By James Florence, Diamond Certified Resource Reporter

SAN FRANCISCO — Jonathan Millington’s plumbing career may have started with a crash course, but it ultimately led to an uncommon level of success. “In my early 20s, I was looking for a trade to get into and became interested in plumbing,” he begins. “I started reading some books about it and found a job with a local plumbing company. They gave me a real crash course. I think the idea was to train me really quickly and get me out in the field. As a result, I had to learn a lot from my mistakes, because I didn’t have a chance to fully learn things during my training.”

After getting a handle on the technical side of plumbing, Jonathan went to work for another company, where he gained insight on the service side. “After working in the field for a while, I was promoted to service manager and basically ran the business for the owner,” he recounts. “However, I didn’t agree with the way he handled customer service. This was back when most people used the Yellow Pages to find companies, and since he had a prominent ad there, he didn’t care whether customers were happy or came back. To me, it made more sense to invest in good service and build a loyal customer base. Not only would your customers be happy, you wouldn’t have to spend as much on advertising because of the repeat business.” Eventually, Jonathan decided the best way to implement his ideas was to start his own business, which he did in 2002.

Today, as owner of Ace Plumbing and Rooter, Jonathan says his favorite part of his job is finding solutions for his customers’ problems. “I think the problem-solving aspect was what interested me most about plumbing in the first place. Not only does it make for stimulating work, it’s fun to be the hero and save the day by fixing a customer’s problem.”

A resident of Daly City (where he lives with his wife, Marina, and son, Jonathan), Jonathan spends his time outside of work on a variety of active pastimes. “I enjoy snowboarding, playing golf and traveling when I get a chance,” he details. “I also love hanging out with my son. His favorite thing to do is ride his bicycle, so we do a lot of riding together.”

In regard to his professional career, Jonathan believes that his commitment to customer service has made all the difference in his long-term success. “Customer service has always been at the core of what we do,” he affirms. “I tell my plumbers, ‘If the customer isn’t happy at the end of the job, it isn’t finished—you need to stay there until they’re happy, even if that means getting me involved.’ Because of this, we’ve been able to build a very loyal customer base. Even if we’re booked out and can’t get to a customer’s house right away, they’re willing to wait. They don’t want to use another company because they trust us. That’s something I’m really proud of.”

Ask Me Anything!

Q: If you could travel anywhere in the world, where would you go?
A: Colombia. I’ve done a fair bit of traveling, but that’s one place I still haven’t seen.

Q: Are you an early bird or a night owl?
A: I’m more of a night owl, but due to the nature of my business, I have to be an early bird. Things tend to start pretty early in the plumbing business.

Q: Do you collect anything?
A: Mainly souvenirs from traveling. My fireplace mantle is covered with odd trinkets I’ve brought back from all over the world.

Q: What’s your favorite holiday?
A: Christmas, because it’s all about the kids.

Q: What’s your favorite thing to eat for dessert?
A: Cheesecake.

Read more

The Importance of Sewer Inspections in Real Estate


SAN FRANCISCO — Before purchasing a home, buyers typically have a number of inspections performed to ensure the property’s integrity. A few common areas of inspection include the roof, the structure and the foundation. However, there’s one area of the home where… Read more

Expert Video Tip

Video: Real Estate Sewer Inspections

Complete Video Transcription:

SAN FRANCISCO — Host, Sarah Rutan: When ordering inspections for a prospective home purchase, don’t neglect the importance of a sewer inspection. Today we’re in San Francisco with… Read more

Daniel Tseyref is owner of Chosen Rooter & Plumbing, Inc., a Diamond Certified company. He can be reached at (415) 462-4764 or by email.

Daniel Tseyref

diamond certified contributor profile and expert article

Daniel Tseyref: Unlocking Potential

By James Florence, Diamond Certified Resource Reporter

SAN FRANCISCO — For years, Daniel Tseyref rebuffed offers to get into the plumbing business, but when he finally gave it a try, he unlocked an unknown potential that altered his professional trajectory. “Before getting into plumbing, I worked at a car dealership for 10 years,” he recounts. “My brother was a plumber, and for years he kept trying to talk me into joining him. I was pretty adamant about not doing it. I didn’t know if I would like it, and moreover, I wasn’t sure I’d be any good at it. Eventually, he wore me down and I agreed to try it. Come to find out, I was actually pretty good at it! Plumbing requires a mechanical mind, and I never knew I had one until I gave it a shot.”

After working in the plumbing industry for seven years, Daniel took the big step of starting his own business. Today, as owner of Chosen Rooter & Plumbing, Inc., he says his favorite part of his job is bringing relief to stressed customers. “I get a lot of calls from customers who have already talked to other plumbers and want another opinion. In many cases, I’m able to provide a simpler and less expensive solution than what was quoted by the previous plumber. I love to see the relief on a customer’s face when I tell them I can solve their problem quicker and more affordably than they had expected.”

A resident of San Francisco (where he lives with his wife, Sarah, and their four children), Daniel spends his time outside of work on a variety of pastimes. “I read a lot, especially nonfiction books,” he details. “I’m also a DJ and I enjoy doing live sets at dance parties for friends.” Daniel also devotes time to practicing his faith. “We’re an observant Jewish family, so we read the Torah and observe Shabbat on Saturdays.”

When asked about a professional philosophy, Daniel says his mission is to challenge the status quo in the plumbing industry. “When I was in car sales, I didn’t use any of the tricks and gimmicks car salespeople are known for; instead, I took an honest, upfront approach. I knew if I did things the right way, I would succeed—I didn’t need to manipulate people to be successful. Today, I run my company by the same principles. Most plumbing companies pay their employees by commission, which motivates them to upsell customers on unnecessary things. In contrast, I pay my employees a straight salary, so they’re motivated to do a good job and make our customers happy.”

When asked the first thing he’d do if he were to retire tomorrow, Daniel says he’d go to Jerusalem. “As an observant Jew, I’ve always wanted to visit Jerusalem. I haven’t been able to take much time off while running my business, so if I retired, I would definitely start planning that trip.”

Ask Me Anything!

Q: What was your first job?
A: Back in Ukraine, when I was 12 years old, my first job was washing car windshields at a stoplight.

Q: What’s your favorite book?
A: My favorite book is the Torah, and my second favorite is “Born to Win” by Zig Ziglar.

Q: What’s your favorite type of food?
A: Sushi.

Q: Music or talk radio?
A: Music.

Q: What’s your favorite type of music?
A: Dance music, especially trance.

Read more

Identifying and Resolving Toilet Leaks


SAN FRANCISCO — Toilet leaks waste water and money, but they aren’t always easy to identify. In fact, many households have leaky toilets that perpetually go unnoticed. The good news is this problem can usually be fixed quite easily. However,… Read more

Expert Video Tip

Video: How to Test for Toilet Leaks

Complete Video Transcription:

SAN FRANCISCO — Daniel Tseyref: Every household has toilets. And as we know, the more you use something, the more it wears and tears and… Read more




  • Kohler

  • Moen

  • Delta

  • Grohe

  • Sterling

  • American Standard

  • TracPipe

  • Badger

Gerber Fixtures
Danze Fixtures
Kohler Plumbing
American Standard Plumbing
Franke Fixtures
Kallista Fixtures
Moen Plumbing Products
Delta Fixtures
Price Pfister Fixtures
Blanco Plumbing Fixtures
KWC Plumbing Fixtures
Sterling Plumbing
Bates & Bates Plumbing
Elkay Plumbing Fixtures
Hansgrohe Plumbing
Duravit Plumbing
Porcher Plumbing Products
Crane Plumbing Fixtures
Ginger Bath Fixtures
Eljer Plumbing Products
Jado Bathroom Fixtures
Grohe Plumbing Fixtures
Rohl Plumbing Products
Pegasus Plumbing
Toto Plumbing Fixtures

green plumbing services
new sinks
new kitchen faucets
new bathroom faucets
new shower faucets
replace shower plumbing fittings
plumbing help
affordable plumbing repairs
plumbing accessories
bathroom fixtures
kitchen fixtures
shower plumbing fixtures
home plumbing supplies
plumbing parts
kitchen & bath faucets
water plumbing pipes
home plumbing installation
plumbing repairs
bathroom plumbing installation & repair
copper plumbing pipes
all plumbing services
wholesale bathroom fixtures
commercial bathroom fixtures
emergency plumbing
gas plumbing

Barbary Coast
Bayview District
Bernal Heights
the Castro
Cole Valley
Cow Hollow
Diamond Heights
Duboce Triangle
Eureka Valley
Financial District
Fisherman’s Wharf
Fort Mason
Glen Park
Golden Gate Park
the Haight
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Hunters Point
Inner Richmond
Inner Sunset
Jackson Square
Laurel Heights
Marina District
Mission District
Nob Hill
Noe Valley
North Beach
Outer Richmond
Outer Sunset
Pacific Heights
Potrero Flats
Potrero Hill
Rincon Hill
Russian Hill
San Francisco
Sea Cliff
South of Market Street (SOMA)
Sunset District
Telegraph Hill
the Tenderloin
the Presidio
Treasure Island
Twin Peaks
Union Square
West Portal
Western Addition


Contractors State Licensing Board (http://www.cslb.ca.gov/)
Associated Builders and Contractors (http://www.abc.org/)
Plumbing-Heating-Cooling Contractors Association (http://www.phccweb.org/)
American Backflow Prevention Association (http://www.abpa.org/)…

Contractors State Licensing Board (http://www.cslb.ca.gov/)
Associated Builders and Contractors (http://www.abc.org/)
Plumbing-Heating-Cooling Contractors Association (http://www.phccweb.org/)
American Backflow Prevention Association (http://www.abpa.org/)
American Society of Plumbing Engineers (http://www.aspe.org/)

American Water Works Association (http://www.awwa.org/)
California-Nevada Section American Water Works Association (http://www.ca-nv-awwa.org/)
California Water Association (http://www.calwaterassn.com/)
California Department of Consumer Affairs (www.dca.ca.gov)
North Coast Builders Exchange (http://www.ncbeonline.com/)
The United Association of Plumbers and Pipefitters (http://www.ua.org/)
World Plumbing Council (http://www.worldplumbing.org/)

Know What You Want
Establish What Plumbing Services You Need and Want from San Francisco Plumbers

Plumbers in San Francisco perform various plumbing tasks, so it’s important that you know what you need from a plumbing contractor before you pick up the phone. By having a clear idea of the type and scope of project, you’re more likely to find a good plumber that has the skills and experience to complete your job. Here are some sample questions to get you started.

  • Do I want a Diamond Certified plumbing contractor that is rated highest in quality and backed by the Diamond Certified Performance Guarantee?
  • What do I need from a local plumbing company (emergency plumbing repairs, plumbing services, new construction plumbing installation, new plumbing fixtures, etc.)?
  • What is my budget for the plumbing work or plumbing repairs?
  • If I need new plumbing fixtures, is there a specific style or brands I’m looking for (i.e. Toto plumbing fixtures, Kohler plumbing products, modern plumbing supplies, traditional fixtures, contemporary plumbing fixtures)?
  • Do I plan to live in my home long-term or is this a rental property or home I plan to sell?
  • What characteristics and professional qualities do I want in a San Francisco plumber? These may include promptness, reliability, good communication skills, and follow-up services.

Interview Good Plumbing Contractors in San Francisco
After you know what you want, your next step is to interview some of the best plumbers in your area. You’ll get better results by having a prepared list of questions to use when you interview local plumbers in San Francisco. Your list will help you ask the same questions of each plumbing contractor and will ensure you remember to ask all the pertinent questions.

By writing down the answers you get from each of the plumbing company representatives, you’ll be better able to narrow down your list and confirm which San Francisco plumber is the best choice for you. The following articles give you sample questions to ask over the phone and in person.

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What To Ask In Person
Questions to Ask When You Meet with Good Plumbers in Person

Your plumber should be willing to answer a few more questions before he or she begins working on your plumbing. Sample questions that you may want to ask include:

  • How much time will the job take, from ordering the new plumbing fixtures through installation?
  • Will I be able to stay in my home during the plumbing work? Or will the water be shut off for too long to comfortably stay?
  • If applicable, do you have energy-saving plumbing fixtures and other plumbing products that can save me money in the long run?
  • Have you completed any similar recent projects in my area of San Francisco?
  • Do you have a list of customer references I can call?
  • How do you finish the plumbing installations? Will you leave my bathroom or kitchen in the same or better condition than it was in before you started the work?
  • How would I handle future plumbing service issues? Are you responsible for warranty work if there’s ever a problem with my new plumbing fixtures or plumbing products?
  • What can I do to make the plumbing repair / installation process easier?
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  • What To Ask References
    Interview Previous Customers About Their Experiences With San Francisco Plumbers

    It’s best to choose a Diamond Certified plumbers because all certified companies have passed an in-depth ratings process that most other companies can’t pass. If you want quality from a plumbing contractor in San Francisco and the Greater Bay Area, you can have confidence choosing a Diamond Certified company. Diamond Certified reports are available online for all certified companies. And you’ll never be fooled by fake reviews. That’s because all research is performed in live telephone interviews of actual customers.

    If you can’t find a Diamond Certified plumbing company within reach, you’ll have to do some research on your own. If you do, it’s wise to call some references provided by your plumber. Keep in mind, though, that references from your plumbing contractor are not equal in value to the large random sample of customers surveyed during the Diamond Certified ratings process. That’s because references given to customers from companies are cherry-picked instead of randomly selected from all their customers. So the plumbing contractors will likely give you a few customers to call that they know are satisfied.

    If you do call references on your own, specifically ask for a list of the company’s 10 most recent customers. This will help avoid them giving you the names of only customers they know were satisfied.

    1. Were you satisfied with the plumbing repair/plumbing installation/plumbing service from _(company name)_?
    2. What was the type and scope of job they did for you (emergency plumbing repairs, new construction plumbing installation, fixture replacement, etc.)?
    3. Did they complete the work on time?
    4. Did the plumbers keep you up-to-date on the status of your plumbing project?
    5. Were there unexpected costs associated with your plumbing repairs or plumbing installation? If so, what were they for and were they avoidable?
    6. Did the plumbing contractors show up on time?
    7. Did they clean up after finishing the plumbing work?
    8. When you need new fixtures or plumbing repairs in the future, would you use this plumber again?
    9. Would you recommend their services to friends and family?
    Read moreRead less
  • Review Your Options
    Review Your Notes to Confirm the Best Plumbing Companies in San Francisco for You

    The Diamond Certified symbol has been awarded to companies that scored Highest in Quality in an accurate ratings process.

    Whether you’re in need of plumbing repairs or you’re hiring a plumbing contractor to install new plumbing pipes and fixtures in your home, your choice in a plumber will dictate how smoothly the project goes and the quality of the work. Now that you’ve done the research, consider the following questions in order to decide on the best plumbing contractor for your needs.

    1. Can one or more of the plumbing companies meet your needs for plumbing services, plumbing supplies and materials, brands and installation requirements?
    2. Are the contractors knowledgeable about the plumbing repairs or the type of new plumbing installation you need? Can they tell you which plumbing products best suit your needs and why (i.e. copper piping, PVC pipes, Kohler plumbing fixtures, Toto plumbing fixtures, pipe snaking, drain rooter services, etc.)?
    3. Are the plumbing professionals sensitive to your budget? Can they offer various plumbing products and plumbing installations that match your resources? Most contractors will give you bids for good, better and best options that include choices of plumbing products, prices, brand names/manufacturers, warrantees and plumbing services.
    4. Will the plumbing contractors guarantee or warranty their work and fixtures in the event of a product failure or plumbing installation error?
    5. Do they put their guarantees in writing?
    Read moreRead less
  • How To Work With
    Encourage the Best Plumbers in San Francisco to Bid on Your Job

    Some homeowners have found it’s a valuable resource to hire a plumber for a smaller project before signing a contract for a major plumbing repair or installation. Others like having a working relationship with a local plumbing contractor because it gives them the confidence to know who to call in a plumbing emergency and who they can trust for a large plumbing job.

    It’s important to know that some good plumbing contractors in San Francisco are choosy about which jobs they accept. This is because bids take time and expense to prepare, and some of these local plumbers have been taken advantage of by unreasonable homeowners. How can you encourage the best plumbing contractors to be interested in your job?

    • Show the plumbers you interview that you’re interested in a good value, not just the lowest bid. Oftentimes, the first questions plumbing contractors hear from potential customers is about the cost of a job. You can show them you know what’s really important in a plumbing installation and repair by asking about quality products, knowledgeable installation and overall value.
    • Be honest if you’re interviewing a few plumbers, but assure each that you’re accepting bids from a few select companies, not dozens.
    • Interview and hire local plumbing companies in San Francisco including the larger neighborhoods of Sunset District, Tenderloin, Richmond District, Mission District and Bernal Heights. Most plumbers like to work in the local area, since it allows them to provide more timely service. It also helps you weed out less reliable plumbing contractors who travel long distances and install discounted products at a cut-rate that local contractors may not be able to compete with price-wise.
    • Be upfront about your needs and desires for your plumbing repairs or new plumbing installation. The more you share with your plumbing contractor, the easier it is for them to give you a reliable bid, the right plumbing services, and the follow-up service you need.

    Contracts that Protect You and Your Plumbing Contractor
    Congratulations! You’ve found a good plumbing company that meets all of your requirements. Whether you’ve chosen a plumber from the larger neighborhoods of Sunset District, Richmond District, Mission District, Tenderloin, Bernal Heights, Excelsior, Pacific Heights, Nob Hill, North Beach and Bayview District or a smaller town, now is the time to request a contract for the work desired.

    The contract should include in detail the scope of the plumbing project, any items or services that are excluded, payment terms, the exact plumbing materials and products to be used and any warrantees and guarantees. Your plumber should be proud to install only the best plumbing products and materials. Often, especially with plumbing fixtures, you will recognize the brand names of the best manufacturers. You may pay more for these plumbing products initially, but installing quality plumbing materials can save you money in plumbing repairs and replacements in the future.

    Once your plumber has given you a contract, read it entirely and be sure you understand all the terms and exclusions before signing it. This contract will protect you and your property, as well as your local plumber. So never sign a blank or incomplete estimate. You may write in additional requests or verbal agreements you’ve come to with the plumbing company representative, including start and end dates, no-later-than clauses that stipulate the date by which all work must be completed, or any bonuses you want to offer for early completion.

    Read moreRead less
  • Be a Good Customer
    Simplify the Job for Your San Francisco Plumbing Company

    One of the easiest ways to get the most out of your contract with a local plumbing contractor is to be organized. This way, you can save the plumber time and save yourself money. You can reduce the billable time by having a written list of specific items you want addressed and a list of questions or concerns you want to talk about with your plumbing contractor.

    If you have a leaky sink or under-counter pipe leak, move all household items from the area so the plumber doesn’t have to spend his or her time clearing a space in which to work.

    Keep children and pets away from the area where the plumbing contractor is working for their safety and the safety and convenience of the plumber.

    Ask your plumbing company representative if there is anything you can do to help speed the job along. They may have specific suggestions of steps you can take to aid the plumbing repairs or new plumbing fixture installation and to shorten the duration of the job.

    How Can You Be a Good Plumbing Company Customer?
    It’s your plumber’s responsibility install quality plumbing systems and fixtures using the best possible techniques. But you play a big part in the success of your plumbing repairs and installations, too. Here are a few simple steps you can take to be a good customer when hiring a San Francisco plumber.

    • Be clear and upfront with the plumbing contractor. Let them know what you expect from the plumbing repairs and installation, the long-term outcome you’re expecting and specific ways the plumbing company can satisfy your expectations.
    • Remember, a smile goes a long way.
    • Before you hire a plumbing service, restate your expectations and goals, and reiterate to the plumbing company representative your understanding of the agreement. Most problems with local plumbers occur because of a breakdown in communication. By being clear about your expectations and theirs, you can avoid most conflicts.
    • Ask your plumbing contractor if you should call to check on the progress or if they will call you with updates.
    • Be sure your San Francisco plumbing service representative has a phone number where they can reach you at all times. The plumbing work will move along more smoothly if your plumber can reach you for updates, questions or work authorizations.
    • Return calls promptly when your plumbing contractor contacts you.
    • Pay your contractor promptly.

    Why would you want to be a good customer for San Francisco plumbers? Plumbers appreciate customers who are honest, straightforward and easy to work with. Your good customer behavior sets the tone from your end and creates an environment conducive to a good relationship. Things may go smoother and problems may be more easily resolved.

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Check The Work
Compare the Invoice and the Completed Plumbing Work

When your plumber has completed the work and before they leave the premises, most good plumbing companies will give you a written invoice for the work done. This invoice usually includes the following:

  • The name, physical address and license number of the plumbing firm.
  • A complete list of all work performed.
  • An itemized list of all new plumbing fixtures, materials and replacement parts.
  • The total cost, including the amount due for labor and plumbing materials.
  • Any applicable warrantees or guarantees provided by the plumbing product manufacturers and the plumbing company.

It’s smart to compare the work that was actually done to the written invoice. Ask your plumbing company representative to accompany you on a walk through the job site and show you the plumbing repairs or new plumbing installations. Check the work completed against the invoice. During your walk-through, ask if there are any special instructions for operating your new plumbing fixtures and the best steps to take in maintaining them. If you have questions about what work was done or how the installation was completed, ask your plumber before he or she leaves the jobsite.

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Written Warranties
Ask for Written Proof of Warranties

Get proof of warranty coverage before your plumber moves forward with the plumbing services. Not all plumbers in San Francisco back up their work and products with warranties, but get all warranty terms in writing if the plumbing company you’ve chosen does. Your written warranty should include:

  • The plumbing firm name, physical address and contractors license number.
  • What plumbing products and work are covered, including whether the contractor will replace or repair the plumbing or give you a refund if you have to place a warranty claim.
  • Your responsibility if you need warranty work (i.e., if you have to pay for labor when filing a claim for plumbing warranty work or pay a prorated amount).
  • Terms and limitations of the new plumbing or plumbing repair warranty.
  • If the plumbing warranty coverage is transferrable to the new owner if you sell your home.
  • Any exclusions to the warranty and guarantee coverage must be in writing.
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Top 10 Requests
Consumers' Favorite Plumbing Brands

The following are the top requested plumbing fixture brands installed by plumbing contractors within the following San Francisco neighborhoods.

  1. Franke Plumbing Fixtures
  2. Elkay Kitchen Sinks
  3. Blanco Sinks & Faucets
  4. Danze Faucets & Plumbing
  5. Kohler Plumbing Supplies
  6. American Standard Fixtures
  7. Toto Toilets
  8. Delta Faucets & Fixtures
  9. Grohe Faucets
  10. Price Pfister Faucets

Top Plumbing Service Requests Performed by San Francisco Area Plumbers
Plumbing contractors in San Francisco often are called to repair and install the following top 10 plumbing service requests. See the paragraphs below for the definition of each.

Rooter Service
Rooter service, also referred to as plumbing snake service, is a drain-cleaning service that unclogs pipes, cuts tree roots out of sewer lines and clears home piping to allow for better plumbing drainage.

Toilet Repair
Toilet repairs in San Francisco include tank repair, toilet leak repair, toilet flange repair, wax ring replacement, toilet bowl repair, toilet valve repairs, repairs for running toilets, toilet part replacements, toilet handle repairs, toilet seat repair and flush repair.

Plumbing Services
Plumbing services (which may include emergency plumbing services) are any type of plumbing installation or repair. Some local plumbers in San Francisco including those in the larger neighborhoods of Sunset District, Richmond District, Mission District, Tenderloin, Bernal Heights, Excelsior, Pacific Heights, Nob Hill, North Beach and Bayview District are known for commercial and industrial plumbing services, while others specialize in residential plumbing services.

New Plumbing Installation
The installation of new plumbing systems most commonly occurs in new homes and other new construction, or as part of a remodel. However, new plumbing systems can be installed as part of extensive plumbing repairs. New plumbing installation generally involves installation of new plumbing pipes, drains, plumbing fixtures and plumbing materials.

Pipe Cleaning/Drain Cleaning
Sometimes referred to as rooter services or sewer services, pipe cleaning and drain cleaning involves the complete cleaning of a home’s pipes and drains. This service is generally performed to unclog pipes and drains or to prevent drain and pipe clogs. Pipe cleaning snakes are often used to clean pipes and drains.

Bathroom Plumbing
Bathroom plumbing is the installation and repair of the pipes, drains, and plumbing fixtures unique to bathrooms. These may include sinks, showers, toilets, bidets, bathtubs and sewer lines.

Kitchen Plumbing
Kitchen plumbing is the repair and installation of kitchen plumbing fixtures such as sinks, garbage disposals and dishwashers, and the repair of any kitchen plumbing fixtures and supplies. Together with bathroom plumbing repairs, kitchen plumbing repairs make up the most common plumbing emergency repairs.

Commercial Plumbing
Commercial plumbing services in San Francisco are those that deal with plumbing repairs and installations in commercial buildings, including stores, schools, offices, hospitals, libraries and warehouses. Commercial plumbing is often on a much larger scale than residential plumbing and may require a different set of tools, knowledge and skills. Commercial plumbers may also perform industrial plumbing services and plumbing for warehouses.

Plumbing & Heating Services
Some Excelsior plumbers offer plumbing and heating services, since the two trades have so many facets in common. Many plumbing and heating contractors offer full-service plumbing and HVAC services including water heater installation and repair, plumbing system installation, solar water heating systems and plumbing and heating supplies.

Emergency Plumbing Service
Emergency plumbing services are any unscheduled plumbing repairs provided by a local plumber. These may include kitchen and bathroom plumbing leaks, clogged pipes, burst pipes, sewer line clogs, drain leaks, toilet repairs, and main water line repairs. Some San Francisco plumbers offer 24-hour emergency plumbing repairs.

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Glossary Of Terms
Plumbing Terms Glossary

Below are plumbing glossary terms and descriptions that will help you navigate your way through your plumbing repairs and installation services in San Francisco, including in the larger neighborhoods of Bernal Heights, Excelsior, Richmond District, Pacific Heights, Nob Hill, Sunset District, Mission District, Tenderloin, North Beach and Bayview District.

access panel
An opening in the ceiling or wall near a plumbing fixture that allows plumbers to service the plumbing system or pipes.

Also known as: plumbing access panel, plumbing access

A device added to the open end of a faucet that mixes air with water. Aerating the water creates a more even flow of water. Faucet aerators are inexpensive to install and can help conserve water and make shower and faucet spray seem more full.

Also known as: low-flow aerators, aerator shower heads, aerating faucets, faucet aerators

backflow preventer
A backflow preventer is a device that stops wastewater and dangerous contaminants from flowing back into the drinkable water supply. Backflow preventers are often code requirements for sprinkler systems, hand-held showers, faucets with pullout spouts, and kitchen sink sprayers.

Also known as: wastewater backflow preventer, backflow prevention valve

bathroom plumbing
Any plumbing to bathroom fixtures, toilets, sinks, showers and bathroom piping is known as bathroom plumbing. Bathroom plumbing may be plumbing repairs, plumbing system installation or installation of new plumbing fixtures.

Also known as: bathroom fixtures, bathroom plumbing repair, shower plumbing, toilet plumbing repairs

commercial plumbing
Commercial plumbing is any plumbing repairs or installations that take place in a commercial building. Commercial plumbing is different than residential plumbing because it often deals with commercial-sized water heaters, boilers, larger piping and more involved plumbing systems. Some plumbing contractors in San Francisco specialize in commercial plumbing while others focus on residential plumbing. A few plumbing companies will provide plumbing services and repairs for residential, commercial and industrial clients.

Also known as: commercial building plumbing services, industrial plumbing, multi-tenant building plumbing, store plumbing, shopping center plumbing

A pipe coupling is a fitting that connects two pieces of pipe. Common couplings for piping and plumbing include elbow fittings, tee fittings, cBayview District couplings, cap couplings, plug fittings, nipple couplings, barb fittings and pipe reducer couplings. Plumbing system fittings can include closet flange couplings, trap primer couplings, clean-out fittings, combo-tee fittings, sanitary tee and double sanitary tee couplings, sanitary cBayview District fittings and wye fittings.

Also known as: pipe couplings, couplings, fittings, pipe valves, PVC couplings, CPVC couplings

drain cleaning
Drain cleaning is a method of clearing organic debris and other materials from plumbing, drains and pipes. Drain cleaning for residential structures and commercial buildings includes drain pressure washing, drain snaking, drain cleaning chemicals, clearing clogged drains, drain tree root clearing and pipe degreasing services.

Also known as: clog removal, degreasing, pipe cleaning, drain clearing, unclogging, clean drainage pipes

An elbow is a pipe fitting that has two openings and which changes the direction of the plumbing line. Pipe elbows come in a variety of degrees to account for the various angles of piping.

Also known as: el fitting, ell coupling, pipe elbow, plumbing elbow, plumbing ell

Fittings usually refer to faucets, shower valves, and tub fillers. Fittings may also refer to piping coupling such as elbow fittings, tee fittings and flange fittings.

Also known as: plumbing fitting, fitting, pipe coupling

In plumbing, fixtures are the objects that water comes from. Plumbing fixtures include water spigots and faucets, shower, sinks, toilets, urinals, and external plumbing system fixtures.

Also known as: fixtures, faucets, kitchen fixtures, bathroom fixtures, plumbing fixtures

GPM, or gallons per minute, is the rate of water flow from faucets and shower heads. GPM flow is regulated by the federal government. New showerhead flow rates can’t exceed 2.5 GMP and new faucet water flow rates can’t exceed 2.5 GPM or 2.2 GPM depending on the pressure. Installing low-flow faucets and fixtures can result in water savings between 25 and 60 percent without a noticeable change in water pressure.

Also known as: gallons per minute, flow rate

GPF, or gallons per flush, is the amount of water a toilet uses per flush. The rate of water flow by which toilets and flush valves are measured and regulated. Current law requires maximum of 1.6 GPF. Older styles were usually 3.5 GPF.

Also known as: gallons per flush, flush flow rate, flush capacity

ID is the abbreviation for “inside diameter,” which refers to the size of the diameter of a plumbing pipe when measured from the inside edges. All pipes are referred to according to their ID.

Also known as: inside diameter

kitchen plumbing
All plumbing and plumbing fixtures in a kitchen are referred to as kitchen plumbing. Kitchen plumbing systems often include sinks and faucets, dishwashers, garbage disposals, sink plumbing, kitchen piping, sink drains, S-traps, slip joints, drain lines and supply line water pipes.

Also known as: kitchen fixtures, kitchen pipes, kitchen plumbing repair, kitchen plumbing installation

new plumbing installation
New plumbing installation refers to the installation of new plumbing lines, water pipes, drain lines, faucets and plumbing fixtures. New plumbing may be installed in new construction or in existing homes.

Also known as: plumbing installation, commercial plumbing installation, residential plumbing installation, industrial plumbing installation, plumbing replacement, plumbing reinstallation

The abbreviation for outside diameter, OD, refers to the dimension commonly used to size water pipes and tubing for plumbing.

Also known as: outside diameter

PVC pipes
PVC, or polyvinyl chloride, is a hard white or cream-colored plastic that is used to form plumbing pipes. PVC pipes are often used in venting and waste water systems that are not pressurized. PVC will melt if exposed to hot temperatures, so PVC pipes are used for cold water distribution.

Also known as: polyvinyl chloride, PVC piping

rooter service
Rooter service is a drain-cleaning service that unclogs pipes, cuts tree roots out of sewer lines and clears home piping to allow for better plumbing drainage.

Also known as: plumber’s snake, drain snaking, drain rootering, drain rooting, pipe rooter service, pipe snaking

The rough-in is the initial part of a plumbing installation that lays out all the basic plumbing lines without permanently connecting them. The rough-in generally includes water supply lines, water drains, water waste and vent lines that run to each fixture (toilet, sink, shower, etc.). Roughing in is generally done before the plumbing inspection.

Also known as: roughing in, to rough in, roughing

toilet repair
Some toilet repairs can be simple enough for some homeowners to handle themselves, or they may require a plumber to fix them. The most common toilet repairs include a toilet running continuously, a loose toilet handle or a sticking toilet handle, water on the floor around the toilet, leaking toilet tanks, poorly flushing toilets, clogged toilets, noisy toilets and toilet tank repairs.

Also known as: toilet problems, toilet problem repairs, toilet part replacement, toilet tank repairs, toilet unclogging, fixing the toilet


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Frequently Asked Questions
Frequently Asked Questions About San Francisco Plumbing Services

Read on to find the answers to the most commonly asked of and about plumbing contractors.

Q: Why choose a Diamond Certified plumber?
A: Diamond Certified helps you choose a plumbing company with confidence by offering a list of top rated local companies that have passed the country’s most in-depth rating process. Only plumbers rated Highest in Quality and Helpful Expertise® earn the prestigious Diamond Certified award. Most companies can’t pass the ratings. American Ratings Corporation also monitors every Diamond Certified company with in-depth and ongoing research and ratings. And your purchase is backed by the Diamond Certified Performance Guarantee, so you’ll feel confident choosing a Diamond Certified plumbing contractor.

Q: Why won’t some plumbers in San Francisco give estimates over the phone?
A: Many good plumbers won’t give estimates over the phone because it can be hard or impossible to accurately diagnose a plumbing problem without seeing it first-hand. Since plumbing fixtures and materials greatly vary, plumbing contractors who give estimates over the phone may end up changing the diagnosis and the fee after arrive on the site to repair the problem or install the fixtures.

However, many plumbers will give free estimates when they come to look at the plumbing problem in person. Others may charge for estimates but might apply the fee toward your repair costs if you hire them to do the plumbing repairs.

Q: Is it an advantage to hire a San Francisco plumber who carries parts and equipment in their work trucks?
A: It can be an advantage to hire plumbing companies who has a well-stocked work truck. These prepared plumbers can usually repair common plumbing problems faster because they have with them all the materials required, rather than having to drive to a plumbing supply store.

Q: My plumber wants me to sign a Waiver of Right to Cancel for my emergency plumbing repairs. What is this and is it legal?
A: In the state of California, consumers who sign a contract with a company that comes to their home to provide a service or product have three days to cancel the transaction. However, while that might be a protection for the consumer in some cases, it can cost plumbers thousands of dollars if a consumer decides to cancel the contract after an emergency plumbing service has been rendered. That’s because unlike products, consumers can’t return services, so if a customer cancels the transaction, the plumber will have, in essence, don all the work for free.

For that reason, some plumbers ask emergency plumbing customers to sign a Waiver of Right to Cancel, meaning that they accept and will pay the charges for the emergency plumbing repairs. Asking a customer to sign this waiver is legal, but only if the repairs are for a true emergency. To protect yourself from plumbers who try to take advantage of customers by asking them to sign a waiver in a non-emergency situation, make sure the repairs you’re having done are truly required immediately.

Q: How can I prevent drain clogs?
A: Frequently hiring a plumber to unclog your drains can get to be expensive. If you find yourself regularly calling your plumber to fix clogged drains, there are some simple solutions that can help you avoid trouble in the future.

  • First, find out what type of pipes you have. Older pipes such as iron pipes or galvanized pipes can rust and clog more easily. You may choose to hire a local plumbing company to repipe your home using copper or PVC pipes, which are less likely to clog and will not rust.
  • Install stoppers and hair traps on all your sinks and bathtubs.
  • Do not pour cooking grease or other liquids down your sinks that may solidify when cool.
  • Regularly flush sinks and bathtubs with running water.
  • Remove hair and other debris from sink stoppers before it can be flushed down the drains.
  • Never use your toilet as a garbage disposal or flush baby wipes or paper towels.

Q: We rarely use our guest bathroom. Is there anything we should do to keep the plumbing and fixtures working?
A: Toilets, piping and fixtures should be regularly flushed with water. This keeps the water traps full and avoids the backflow of odors and gasses into the home. Once a week, you should use or turn on the fixtures to keep them functioning. You can also pour a bucket of water in each toilet, sink, shower and floor drain in the unused bathrooms in your home.

Q: What are on-demand water heaters?
A: On-demand water heaters, also called tankless water heaters, heat water as you use it rather than heating and storing hot water in a tank. Because tankless water heaters don’t waste energy storing and maintaining the temperature of unneeded hot water, their operating costs can be up to 30 percent lower than those of a traditional water heater. And with the emphasis on energy-saving appliances, tax credits may be available to consumers purchasing an on-demand water heater.

Q: Should I buy a low-flow showerhead or low-flush toilet? Why?
A: Low-flow plumbing fixtures like low-flow toilets and low-flow showerheads save substantial amounts of water over traditional showerheads and toilets. This saves water, energy and expense. Numerous water-saving fixtures have been available since the National Energy Policy Act that mandated low-flow toilets was passed in 1995. While some consumers complained that early models of low-water fixtures had weak pressure and didn’t work as well as the standard fixtures, modern.

Q: What other water saving and energy saving plumbing fixtures are available in San Francisco?
A: These days, there are many options for energy-saving plumbing fixtures, or green plumbing solutions. Some include air-assisted toilets, gravity toilets, power-assisted toilets, aerators, green plumbing fixtures, tankless water heaters, gray water recycling fixtures, composting toilets, dual-flush toilets, waterless urinals, sensor-operated faucets, solar water heaters, hot water re-circulating pumps and many others. Call your local plumbing contractor in San Francisco for more information on available water-saving plumbing products and which ones will work best for you.

Q: My drains are running slow. Can’t I just use a Liquid Plumber-type drain cleaner?
A: You may be able to fix clogged drains and stopped up sinks by using drain-cleaning chemicals you buy at the store or a non-toxic baking soda drain cleaner. However, for tough clogs that you can’t clear after a few attempts or drains and pipes that clog constantly, you may need to call a San Francisco plumbing company to professionally remove the clog or snake out your pipes and drains to keep clogs from forming in the future.

Q: I think tree roots may be growing in our pipes. What should I do?
A: First, have a good plumber confirm that you have roots in your piping. Some plumbers in San Francisco have camera equipment that can prove where the problem is, that it is roots growing in the pipes, and can give them a view of how to repair the problem. They can also advise you on the best method to prevent the problem. This may entail removing the bushes or trees that are growing into the piping, using a root-killing product, replacing the affected pipe with a stronger material, or snaking out the pipe or using high-pressure water to jet out the pipe and line it with an epoxy material.

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