Diamond Certified Companies are Rated Highest in Quality and Helpful Expertise.

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Diamond certified companies are top rated and guaranteed

Why Trust Diamond Certified Plumbing Companies Rated Highest in Quality?

Photo: Drain Doctor (2013)

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 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 in customer satisfaction–a 90+ on a 100 scale–as well as pass all of the credential-based ratings earn Diamond Certified. By requiring such a high score to qualify, the Diamond Certified program eliminates mediocre and poorly performing companies. Read detailed information about the ratings and certification process.

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Tom Cortez is a longtime veteran of the plumbing industry and owner of Savior Plumbing, Inc., a Diamond Certified company since 2012. He can be reached at (925) 233-6962 or by email.

Tom Cortez

diamond certified contributor profile and expert article

Tom Cortez: Taking the Field

By James Florence, Diamond Certified Resource Reporter

PLEASANTON — Even though Tom Cortez never reached professional status as a football player, he found success after applying his experience on—or rather, in—another field. As he recounts, it all started with the dual fraternal influences that shaped his childhood aspirations. “Growing up, my two older brothers were my primary role models,” he says. “One of them coached football and the other was a plumber, so I got involved with both the sport and the trade. When I didn’t get drafted to the pros after playing football in college, I decided to join the plumbers union. I really enjoyed working with my hands and solving problems, so it turned out to be a great career for me.”

Tom began his plumbing career working in institutional settings like hospitals, prisons and research facilities, but when he established his own business in 2000, he shifted his focus toward the residential and commercial sectors. Today, as owner of Savior Plumbing, Inc., Tom explains the ethos behind his company’s name. “We’re not the Savior; we’re just here to fix the plumbing,” he laughs. “My faith permeates everything I do, and I think the best way for me to live that out is by operating with integrity and treating others fairly and honestly.”

Born and raised in Hayward, Tom resides today in Pleasanton with his wife and business partner, Tammy. An avid outdoorsman, he appreciates the many opportunities the lush Bay Area setting affords. “I love bicycling, camping and getting out into the wilderness, and this is a prime place to enjoy those things.” Besides cycling for fun, Tom likes doing it competitively—especially when there’s a charitable cause involved. “I participated in AIDS/LifeCycle this past year,” he says. “It’s a 600-mile ride from San Francisco to Los Angeles, and the proceeds go toward funding AIDS research.” When he’s not on his bike, Tom enjoys spending time with his family, including his and Tammy’s three grown children and granddaughter, Anna.

In regard to his life and career, Tom says being a plumber entails a greater responsibility than most people realize. “When I first started in this industry, I was taught that plumbers are responsible for the health of the nation. In servicing the sewer, water, and gas piping in homes and businesses, we’re accountable for making sure things are operating safely and efficiently. I take pride in being responsible for maintaining my customers’ plumbing systems.”

When asked the first thing he’d do if he were to retire tomorrow, Tom says he’d jump on his bike. “I guess I’d go for a long bicycle ride, but to be honest, I don’t plan to ever retire—I want to continue running my business for as long as I can. I would like to do a little more traveling, though.”

Ask Me Anything!

Q: What were you most known for in high school?
A: Being an athlete. I was the quarterback of our football team.

Q: What are your favorite sports teams?
A: The USC Trojans, the San Francisco 49ers and the Oakland A’s.

Q: Music or talk radio?
A: Music.

Q: What’s your favorite local restaurant?
A: Los Compadres Mexican Restaurant in Hayward.

Q: What’s your favorite TV show?
A: “American Idol.”

Read more

Innovations in Sewer Line Diagnosis and Repair


PLEASANTON — If you experience chronic sewer line backups in your home, it’s likely a symptom of a larger underlying issue. Fortunately, thanks to innovations in plumbing technology, it’s now easier than ever to diagnose and repair sewer line problems. Diagnosis In… Read more

3 Water Heater Components to Know


PLEASANTON — Besides its tank, a water heater has several functional components and connecting parts. Here are a few important ones to know about: Water connectors These deliver water to and from the water heater. The best product for this is… Read more

Expert Video Tip

Video: Sewer Line Diagnosis and Repair

Complete Video Transcription:

PLEASANTON — Host, Sarah Rutan: Thanks to modern innovations in plumbing technology, diagnosing and repairing a sewer line problem is far easier today than it was in the… Read more

Bill Van Mastrigt is a 20-year veteran of the plumbing industry and owner of Advanced Plumbing and Rooter Service, a Diamond Certified company. He can be reached at (925) 276-5616 or by email.

Bill Van Mastrigt

diamond certified contributor profile and expert article

Bill Van Mastrigt: A Simple Profession

By James Florence, Diamond Certified Resource Reporter

SAN RAMON — Dissatisfied with working for a large corporation, Bill Van Mastrigt followed his desire for a simpler profession to a career in the plumbing industry. “After my service in the military, I went to work for the Shell oil refinery in Martinez,” he recounts. “After about six years, I decided I didn’t like the big corporate environment and wanted to do something on a smaller scale. I knew the owner of a plumbing company in Concord, and he agreed to hire me and train me in the business. Eventually, I decided to continue in the industry with the goal of starting my own company.”

Today, as owner of Advanced Plumbing and Rooter Service, Bill says his favorite part of his job is forming long-term relationships with his customers. “I enjoy getting to know my customers on a more personal level over time. I find it very rewarding to be closely connected to my community—plus, you’d be amazed at how many bags of Christmas cookies I bring home during the holidays!”

A resident of San Ramon (where he lives with his wife, Nilda, and their children), Bill prefers to spend the bulk of his free time outside. “We’re very outdoorsy people,” he affirms. “In the winter we’re skiing and snowboarding, and in the summer we do a lot of hiking, camping, and hunting. You name it—if it’s outdoors, we like doing it.”

In regard to his professional career, Bill says he hopes to build a legacy. “My long-term goal with the business is to create something that’s both a sustainable source of income and that will provide professional opportunities for my kids as they grow older. I already have one son in the industry and, just like me, it has opened up a lot of opportunities for him. Of course, keeping the business growing and successful means maintaining the core values I started with: being honest, doing the job right and taking care of the customer.”

When asked the first thing he’d do if he were to retire tomorrow, Bill says he’d expand the scope of his wilderness experience. “As an outdoor enthusiast, I’d like to travel around and see some new places. I’d also probably schedule some out-of-state hunting trips. I’ve always wanted to go moose hunting in Alaska.”

Ask Me Anything!

Q: What’s your favorite local restaurant?
A: It depends on the type of food I’m in the mood for. For sushi, I like Amakara in Dublin; for Mexican food, it’s Maria Maria in Danville.

Q: What’s your favorite thing to do on a rainy day?
A: If I’m not working, I love to stay home with my kids and make grilled cheese sandwiches and tomato soup.

Q: Are you an early bird or a night owl?
A: I’m kind of both.

Q: What kind of music do you like?
A: Mainly country, but I have a background of listening to heavy metal bands like Metallica, which I still enjoy.

Q: What was your favorite toy as a child?
A: My Big Wheel.

Read more

Pros and Cons of Tankless Water Heaters


SAN RAMON — If your water heater needs to be replaced, you may be considering switching to a tankless model. However, while a tankless water heater certainly has its advantages, it’s not necessarily a good investment for every home. Before making… Read more

Advantages of Hot Water Recirculation


SAN RAMON – Like most people, you’ve probably had the experience of turning on your faucet or shower and waiting for the water to heat up. In fact, this is likely something you experience on a daily basis. However, there are… Read more

Expert Video Tip

Video: Tankless Water Heater Considerations

Complete Video Transcription:

SAN RAMON — Host, Sarah Rutan: If you’re thinking about switching from a conventional water heater to a tankless model, there are a few practical considerations… Read more

Matthew Hechim is a 27-year veteran of the plumbing industry and owner of Water Heaters Masters, Inc., a Diamond Certified company since 2011. He can be reached at (925) 435-1896 or by email.

Matthew Hechim

diamond certified contributor profile and expert article

Matthew Hechim: Water Heater Master

By James Florence, Diamond Certified Resource Reporter

CONCORD — Matthew Hechim’s involvement in the plumbing industry may have begun from a family connection, but it was his own talent and drive that led to his mastery of the trade. “My grandfather worked construction, and when I was growing up, I tried my hand at several aspects of the industry, from demolition to concrete to carpentry,” he says. “I enjoyed plumbing the most, so that’s what I ended up sticking with. I started doing it professionally in the early ’90s, worked my way up from an installer to a field supervisor and, in 2006, founded Water Heaters Masters with my partner, Alex Diaz.”

Today, after 25 years in plumbing, Matthew says his favorite part of his job is the versatility made possible by modern industry innovation. “Things have changed a lot since I first started—there are more high-end, energy-efficient products on the market, which gives us more flexibility when it comes to finding products that meet our clients’ needs. Plus, with our long-term experience, we’re able to utilize today’s technology to come up with smart solutions for particular problems.”

A lifetime resident of the Bay Area, Mathew grew up in Brisbane and today resides in Vacaville with his wife, Maura, and daughter, Samantha. Outside of work, he enjoys spending time with family and pursuing outdoor activities. “As a family, we love going skiing at Lake Tahoe in the winter, as well as going to Disneyland when we get a chance,” he says. “I also enjoy fishing; playing golf; and going to 49ers, Raiders, and Warriors games.”

In regard to his professional career, Matthew espouses the value of going above and beyond for customer satisfaction. “In addition to doing good work, I think our commitment to taking care of our customers is the secret to our success,” he affirms. “For example, we always clean up after ourselves because we want to leave things looking better than when we arrived. Also, if a customer has a problem with something we’ve installed, we go back and take care of it at no extra charge. It all comes down to customer service.”

When asked what his future retirement might look like, Matthew says he’ll make sure to stay active. “I’ll probably play a lot of golf and do a lot of hiking, as well as get involved with some type of charity work. But as it stands, I’m not really thinking about retirement because I like working, and I hope to be doing plumbing for a long time.”

Ask Me Anything!

Q: What’s your favorite TV show?
A: “Mad Men.”

Q: What was your favorite toy as a child?
A: My Evel Knievel toy, which came with a ramp so you could build your own jumps.

Q: What’s your favorite local restaurant?
A: Scott’s Seafood in Walnut Creek.

Q: Have you ever read a book more than once?
A: I’ve read “The Lord of the Rings” a few times, as well as some of Ernest Hemingway’s books, like “The Old Man and the Sea” and “The Sun Also Rises.”

Q: What’s your favorite snack?
A: Pretzels, carrots and hummus.

Read more

Inspecting Your Water Heater


CONCORD — For most homeowners, water heaters tend to be out of sight and out of mind. In reality, periodic water heater inspection is an important aspect of home maintenance, mainly because it allows you to preventatively identify problems like leaks and… Read more

Expert Video Tip

Video: Inspecting Your Water Heater

Complete Video Transcription:

CONCORD — Host, Sarah Rutan: Water heaters are easy to ignore, but the truth is they should be inspected on a regular basis. Today we’re in Concord with… Read more

Ricardo Lopez is president of Superior Plumbing & Drain Cleaning Services, a Diamond Certified company since 2012. He can be reached at (925) 331-0363 or by email.

Ricardo Lopez

diamond certified contributor profile and expert article

Ricardo Lopez: A Rewarding Career

By James Florence, Diamond Certified Resource Reporter

RICHMOND — Ricardo Lopez was initially drawn to the plumbing trade by the pay, but it wasn’t long before he discovered the true rewards his career provided. “I was told that plumbers made good money, so I decided to start an apprenticeship with a local company,” he remembers. “The pay was good, but what I really liked about the job was the opportunity to help people, especially elderly customers who are vulnerable to being taken advantage of. It felt very rewarding to be able to take care of people and provide an honest service. After five years working in the field, I decided to found my own business in 2002.”

Today, as owner of Superior Plumbing & Drain Cleaning Services, Ricardo says his first priority is providing top-notch customer service. “I personally train each of our employees in the way we present ourselves and serve our customers. To me, the most important thing is making sure every customer is satisfied, both with the work itself and the professionalism of our technicians.”

Originally from El Salvador, Ricardo resides today in Antioch with his wife, Fatima, and their two children. Outside of work, he spends his free time engaged in a variety of active pastimes. “My kids like the water, so we do a lot of swimming and boating at local lakes,” he says. “We also like to play basketball and soccer.” Additionally, Ricardo and his family make a point of traveling two to three times each year. “We regularly vacation at places like Cancun and Belize. Also, since my wife is from Mexico, we go to Guadalajara every January to see her family and take part in the holiday festivities.”

In regard to his professional career, Ricardo espouses the importance of taking care of people. “In addition to taking care of our clients, I believe in taking care of our employees,” he explains. “I try to make sure everyone who works for me is well-compensated and happy in their job. After all, when your employees are happy, they’re more likely to pass that on to customers in the form of good service, so it’s a great investment all in all.”

When asked the first thing he’d do if he were to retire tomorrow, Ricardo says he’d take an extended vacation. “I would take a month-long trip with my family, maybe to Cancun or my home country of El Salvador. It’d be nice to just take some time to relax and recuperate by the beach.”

Ask Me Anything!

Q: What’s your favorite sports team?
A: The San Francisco Giants.

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

Q: Do you collect anything?
A: CDs and digital music.

Q: What kinds of music do you like?
A: I like all kinds, especially upbeat music because I’m a happy person.

Q: What’s your favorite snack?
A: Granola bars.

Read more

A Solution for Water Pressure Issues


RICHMOND — If your home’s faucets, showerheads, and toilets are constantly dripping and running, it might be time to check your home’s water pressure. The recommended water pressure for residential homes is between 60 and 80 psi, so if yours reads… Read more

Expert Video Tip

Video: Addressing Water Pressure Issues

Complete Video Transcription:

RICHMOND — Host, Sarah Rutan: If your home’s plumbing fixtures are constantly running or dripping, this may be the result of a water pressure issue. To… Read more




  • Kohler

  • Moen

  • Delta

  • Grohe

  • Sterling

  • American Standard

  • TracPipe

  • Badger

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

all plumbing services
wholesale bathroom fixtures
commercial bathroom fixtures
emergency plumbing
gas plumbing
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

Bay Point
Bethel Island
Discovery Bay
El Cerrito
El Sobrante
Hilltop Mall
Los Medanos
North Richmond
Pleasant Hill
Point Richmond
Port Chicago
Port Costa
Rheem Valley
San Pablo
San Ramon
Tara Hills
Vine Hill
Walnut Creek
Walnut Heights
West Pittsburg


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 Contra Costa County Plumbers

Plumbers in Contra Costa County 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 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 Contra Costa County plumber? These may include promptness, reliability, good communication skills, and follow-up services.
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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 Contra Costa County?
  • 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 Local 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 Contra Costa County 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.

    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. If you live in a smaller Contra Costa County town such as Bay Point, Knightsen, Pinole, Rodeo, Tara Hills, Cowell, Clayton, Hercules, Alamo, Briones, W Pittsburg and Port Chicago, did the plumbers charge extra to travel to your home?
    7. Did the plumbing contractors show up on time?
    8. Did they clean up after finishing the plumbing work?
    9. When you need new fixtures or plumbing repairs in the future, would you use this plumber again?
    10. Would you recommend their services to friends and family?
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  • Review Your Options
    Final Questions Before Choosing A Plumber

    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 Contra Costa 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? Do they put their guarantees in writing?
    Read moreRead less
  • How To Work With
    Encourage the Best Plumbers in Contra Costa County 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 Contra Costa County 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 Contra Costa County including the larger cities of Concord, Walnut Creek, Richmond, Antioch and Pittsburg. 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.

    Get a Contract that Protects You and Your Contractor
    Congratulations! You’ve found a good plumbing company that meets all of your requirements. Whether you’ve chosen a plumber from the larger cities of Concord, Richmond, Antioch, Walnut Creek, Pittsburg, San Ramon, Danville, Brentwood, Martinez and Pleasant Hill 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.

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  • Be a Good Customer
    Simplify the Job for Your Contra Costa County 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 Contra Costa County 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 Contra Costa County 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 Contra Costa County 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 Contra Costa plumbing firm.
  • A complete list of all plumbing services and plumbing repiars 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 job site.

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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 Contra Costa County 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
Frequently Requested Plumbing Brands Installed and Repaired by Contra Costa County Plumbers

The following are the top 10 requested plumbing fixture brands installed by plumbing contractors within the following Contra Costa County cities.

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

Top Plumbing Service Requests Performed by Contra Costa County Plumbers
Plumbing contractors in Contra Costa County often are called to repair and install the following plumbing service requests. See the paragraphs below for the definition of each.

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.

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 Contra Costa County 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 Contra Costa County including those in the larger cities of Concord, Richmond, Antioch, Walnut Creek, Pittsburg, San Ramon, Danville, Brentwood, Martinez and Pleasant Hill are known for commercial and industrial plumbing services, while others specialize in residential plumbing services.

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.

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 Contra Costa County plumbers offer 24-hour emergency plumbing repairs.

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 Contra Costa County 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.

Contra Costa County Plumbing & Heating Services
Some San Ramon 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.

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Glossary Of Terms
Glossary of Common Plumbing Terminology

Below are plumbing glossary terms and descriptions that will help you navigate your way through your plumbing repairs and installation services in Contra Costa County, including in the larger cities of Pittsburg, San Ramon, Richmond, Danville, Brentwood, Concord, Antioch, Walnut Creek, Martinez and Pleasant Hill.

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 Contra Costa County 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, cross 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 cross 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. Contra Costa County plumbers install new kitchen plumbing systems including 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 Contra Costa Plumbing Services

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

Q: Why choose Diamond Certified Plumbers?
A: Diamond Certified helps you choose a plumbing company with confidence by offering a list of top-rated local companies who have passed the country’s most in-depth rating process. Only plumbers rated Highest in Quality 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 Contra Costa County 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 Contra Costa County 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: 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 Contra Costa County 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 Contra Costa County 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.

Q: Is there anything we should do to keep the plumbing and fixtures working in guest bathrooms and other infrequently-used bathrooms?
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.

Q: What other types of water saving plumbing fixtures are available in Contra Costa County?
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 Contra Costa County for more information on available water-saving plumbing products and which ones will work best for you.

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