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Why Trust Diamond Certified Remodeling and Home Addition Contractors Rated Highest in Quality and Helpful Expertise®?

Home additions and interior remodels by Diamond Certified remodeling contractors and addition builders can add space and value to existing homes. You can feel confident choosing a quality home remodeling contractor or addition builder listed above because each has been rated Highest in Quality and Helpful Expertise® and has earned Diamond Certified. For more information on how best to choose and work with a remodeling company or home renovation contractor in Alameda County, read the following articles. Photo: Superior Builders & Remodelers ©2012 Topic: Finding High Quality Home Addition Contractors and Remodelers in Alameda County

OAKLAND — You are the customer. If your goal is to choose a remodeling and addition contractor that will deliver high customer satisfaction and quality, you’ll feel confident in choosing a Diamond Certified remodeler and addition builder. 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 additions and remodeling contractor 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–as well as 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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DIAMOND CERTIFIED EXPERT CONTRIBUTORS IN THE Alameda County – Contractors – Remodel & Additions CATEGORY

David Lorber is a veteran of the construction industry and owner of Superior Builders & Remodelers, a Diamond Certified company since 2002. He can be reached at (510) 854-6937 or by email.

David Lorber

diamond certified contributor profile and expert article

David Lorber: A Renewed Awakening

By James Florence, Diamond Certified Program Reporter

OAKLAND — Having worked for his father’s construction firm throughout his youth, the last thing David Lorber had planned was to further pursue the trade in adulthood—that is, until he had what could be described as a vocational epiphany. “It was a funny thing, because I’d never been particularly interested in the business,” he says. “I simply woke up one morning and realized that building houses was the coolest thing in the world. From that point on, I knew I wanted to do construction.” With his goal in mind, David began training as an apprentice carpenter before going to work for a custom home builder and spending five years doing new construction in Alaska. Eventually, David’s path came full circle when he returned home to help out at his father’s business, of which he later assumed ownership.

Today, as second-generation owner of Superior Builders & Remodelers, David says his favorite part of his job is the fulfillment he gets from “wowing” his customers. “Most people don’t understand how difficult our job really is. Every stick of lumber, every screw, every board that we install is touched by human hands, so when everything is finally in place and the customer is delighted, it gives me a lot of satisfaction.”

A resident of Oakland, David spends most of his free time taking advantage of the rich Bay Area landscape, whether hiking, fishing or cycling. “I’m an avid cyclist and enjoy riding through places like Redwood Canyon and Tilden Park,” he says. “My girlfriend, Debbie, and I actually met cycling, so that’s one of our main recreational activities.” Additionally, David takes time to keep up with his three grown children: Jerry, who lives in Denver; Jake, who lives in Sydney, Australia; and Rachael, who lives in Los Angeles.

In regard to his professional career, David espouses the importance of taking pride in his work. “I try to do as much as possible by hand and really give my all toward delivering a custom, quality product,” he says. “It’s unfortunate how many things these days are either machine-made or manufactured by people who don’t care about quality. My hope is that 50 years from now, when someone looks at a home we built, they’ll say, ‘Wow, these guys really knew what they were doing and took pride in their work.’”

When asked the first thing he’d do if he could retire tomorrow, David says he’d pay a few long-deferred visits. “I would go visit friends and family whom I don’t get a chance to see very often. I have some close friends in Oregon and Idaho, not to mention my kids, who are spread all over, so I’d put together a schedule that would allow me to spend quality time with them.”

Ask Me Anything!

Q: If you could travel anywhere in the world, where would you go?
A: Australia, to visit my son, Jake. I went there for his wedding five years ago, so I’m past due for another visit.

Q: If you could time travel, would you go to the past or the future?
A: The past. Much of the housing in this area was originally built about a century ago, and I think it would be neat to see Oakland when it was a little less developed.

Q: What’s your favorite thing to do on a rainy day?
A: Tinker around the house doing repairs or improvements.

Q: What was your favorite toy as a child?
A: I loved to build model airplanes.

Q: Pancakes or waffles?
A: Waffles.

Read more

Smoke and CO Alarm Tips


OAKLAND — Smoke and carbon monoxide detectors may be easy to ignore, but they can also potentially save your life. Fortunately, there are new models that are simple to use and further improve home safety. One of the biggest advantages… Read more

Expert Video Tip

Video: A Crucial Contractor Credential

Complete Video Transcription:

OAKLAND — When hiring a contractor for your building project, it’s important to verify a crucial credential. Today we’re in Oakland with Diamond Certified Expert Contributor David… Read more

Michael Ghanivand is owner of Advance Construction, a Diamond Certified company. He can be reached at (510) 621-3943 or by email.

Michael Ghanivand

diamond certified contributor profile and expert article

Michael Ghanivand: From Medicine to Construction

By James Florence, Diamond Certified Resource Reporter

OAKLAND — A native of Iran, Michael Ghanivand originally intended to become a medical professional, but when things didn’t go as planned, he ended up building an entirely different career. “I actually have a medical background—I went to medical school at the University of Szeged in Hungary,” he explains. “The Iranian economy wasn’t doing great at the time, so my parents couldn’t send me enough money to continue my education. I came to the United States to get a job, with the intention to save up some money and return to medical school. However, after getting into construction work, I grew to love it and decided to stick with it.”

Today, as owner of Advance Construction, Michael says his favorite part of his job is the simple satisfaction of doing good work. “I’ve always enjoyed working with my hands and having something to show for it at the end. These days, while I no longer participate in the hands-on work, I continue to derive satisfaction from seeing what my team and I are able to accomplish for our clients.”

A resident of Walnut Creek, Michael devotes the bulk of his time outside of work to his family. “My wife, Ahdieh, and I have two daughters: a 27-year-old and a 10-year-old,” he says. “The reason for the gap is that after I came to the U.S., I wanted to get my business well-established before having another child. Now, we have one daughter in college and one in elementary school, which is pretty unusual.”

When asked what he would do if he were to retire tomorrow, Michael says he’d devote himself to consumer education. “I’d like to get involved in some sort of program that teaches homeowners to be wiser consumers. During my 30 years in construction, I’ve heard from countless people who’ve been taken advantage of by unscrupulous contractors because they didn’t know what to look for or what to ask. I think it would be very rewarding to help homeowners become more aware and make better decisions when it comes to their construction projects.”

Ask Me Anything!

Q: Coffee or tea?
A: Tea.

Q: What’s your favorite restaurant?
A: Tomatina in Walnut Creek.

Q: What’s your favorite holiday?
A: Christmas, because I get to be at home with my family.

Q: Are you an early bird or a night owl?
A: An early bird. I need to be up and make sure everything’s ready for the day.

Q: What’s your favorite snack?
A: Any kind of fruit.

Read more

Checking for Mold During a Remodel


OAKLAND — If you’re remodeling your home, one of the most important things you can do is check to see what’s behind your walls. Why? Because if there’s any hidden mold or mildew, it could jeopardize your entire project. In most cases,… Read more

Expert Video Tip

Video: Checking for Mold During a Remodel

Complete Video Transcription:

OAKLAND — Host, Sarah Rutan: If you’re remodeling an older home, be sure to look at what’s behind the walls. Today we’re in Oakland with Diamond Certified Expert… Read more

Bill Hinkamp is owner of Rockridge Builders, a Diamond Certified company since 2002. He can be reached at (510) 761-6917 or by email.

Bill Hinkamp

diamond certified contributor profile and expert article

Bill Hinkamp: Designing and Building a Career

By James Florence, Diamond Certified Resource Reporter

OAKLAND — Even while studying architecture in college, Bill Hinkamp never lost his love for construction. Later, he would merge his dual interests into a single professional venture. “I’ve always been involved in construction and I continued to be attracted to the industry during my time at UC Berkeley,” he affirms. “Since I was studying architecture, I increasingly began to see construction as a design/build discipline, which would inform my later career.”

Following college graduation, Bill went to work for an architectural firm, but it wasn’t long before he found himself involved in construction once again. “A couple of years into my stint as an architect, I got an opportunity to work as a quality control inspector on a project at the Presidio in San Francisco,” he remembers. “I worked with the general contractor on that project for about a year, and I enjoyed it so much that I quit my job at the architectural firm and went to work for the construction company. A few years later, in 1981, I started my own design/build firm.”

Today, as owner of Rockridge Builders, Bill says his favorite thing about his job is its inherent variety. “I really enjoy getting to work on all different kinds of projects. When I started this business, my philosophy was that we’d never say no to a project, no matter how difficult or unusual it might be. Decades later, that has given us a wide breadth of knowledge and experience, which I really appreciate.”

A resident of Orinda (where he lives with his wife, Louise), Bill spends his time outside of work on a variety of pastimes. “My wife and I enjoy the Bay Area and all it has to offer,” he says. “In particular, we like exploring San Francisco and Oakland, checking out different venues and restaurants, and going to Oakland A’s games.” Bill and Louise also like visiting their four grown children. “Our kids are spread out all over the place, from Los Angeles to North Carolina, so we do a lot of traveling to see them. Occasionally, we’re able to get everyone together under one roof, usually for a holiday.”

Bill says attention to detail has been key to Rockridge Builders’ ongoing success. “We’re all about the details and making sure everything is done just right. Quality control and the care that goes into it makes all the difference in a project’s outcome, and if you can instill that care and attention to detail into each member of your team, you’ll have a winning formula.”

When asked the first thing he’d do if he were to retire tomorrow, Bill says he’d see the world. “I’d probably travel more. I’ve been to Europe a couple of times, as well as Mexico and Hawaii, but there’s still so much more left to see.”

Ask Me Anything!

Q: Are you an early bird or a night owl?
A: Sometimes both, but mostly I’m an early bird—I usually start my day before 6am.

Q: What’s your favorite local restaurant?
A: El Charro Mexican Dining in Lafayette.

Q: What’s your favorite TV show?
A: “Blue Bloods.”

Q: What’s the best gift you’ve ever received?
A: A 3-speed “English Racer” bicycle. It was a Christmas gift when I was 10 years old and I still remember the thrill of receiving it.

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

Read more

Getting Ready to Meet with a Remodeling Contractor


OAKLAND — If you’re planning a remodeling project, one of your first steps should be to meet with a contractor. However, in order to make the most of your initial meeting, it’s best to be prepared by having an idea of what… Read more

Expert Video Tip

Video: Preparing to Meet with a Building Contractor

Complete Video Transcription:

OAKLAND — Host, Sarah Rutan: When planning to meet with a building contractor, taking some preparatory steps will help you make the most of your discussion. Today we’re… Read more

Rolf Bell is a 35-year veteran of the building industry and principal of Green Living Builders LLC, a Diamond Certified company. He can be reached at (510) 295-9322or by email.

Rolf Bell

diamond certified contributor profile and expert article

Rolf Bell: A Charitable Builder

By James Florence, Diamond Certified Resource Reporter

BERKELEY — After getting an early start in construction, Rolf Bell left the field to pursue a more charitable vocation, which gave him a renewed perspective when he later returned to the trade. “I’m a third-generation builder,” he explains. “I started working with my father on weekends when I was 12 years old, and later I used my saw and hammer to pay for college. After graduating, I became a lead carpenter for a roofing crew, but I soon decided to switch gears and become a Lutheran minister. Through the ministry, I got involved with Habitat for Humanity, which allowed me to utilize my construction background for a charitable cause. I eventually returned to full-time construction work, but I’ve continued to stay involved with Habitat and use my skills to help those in need.”

Today, as owner of Green Living Builders LLC, Rolf says he enjoys the twofold character of his revamped career. “I like being able to do construction on different levels and for different causes. I still do charity work locally and abroad, but I also do a lot of high-end remodeling, which keeps me challenged and helps me stay on the cutting edge of technology. All in all, it’s a nice mix that keeps me fresh and excited.”

A resident of Berkeley, Rolf expresses his appreciation for its characteristic diversity. “I really enjoy the diversity of the people here—it makes for more interesting and engaging interactions than if it were a more homogenous culture. I also enjoy the variety of the architecture and building opportunities, which allows me to stay on the growth edge of my industry.”

Outside of work, Rolf engages in a variety of pastimes, both at home and abroad. “I’m really into traveling, which is one of the perks of doing charity work overseas,” he says. “Most of all, I enjoy unusual and exotic opportunities, whether swimming with whales in Tonga or watching bears catch salmon in British Columbia.” Locally, Rolf enjoys activities like skiing and hiking, as well as hanging out with his family. “My wife, Laura, and I have two grown daughters and two grandchildren, so we enjoy seeing them and doing things together.”

When asked the first thing he’d do if he could retire tomorrow, Rolf says he’d expand his horizons of travel and experience. “As I mentioned, I love traveling and having authentic, intimate international experiences. The diversity of life on this planet is awe-inspiring to me, so I’d like to continue to see and experience as much as I can.”

Ask Me Anything!

Q: What’s your favorite local restaurant?
A: Kirala in Berkeley.

Q: What kinds of movies do you like?
A: Adventure movies and thought-provoking films like “Arrival.”

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

Q: Do you collect anything?
A: Global experiences.

Q: What’s the most death-defying feat you’ve ever attempted?
A: It’s a tie between bungee jumping in New Zealand and walking along the girders beneath the Golden Gate Bridge as a teenager.

Read more

New Laws for Accessory Dwelling Units


BERKELEY — As of January 1, 2020, new laws have gone into effect that make it easier for California homeowners to build accessory dwelling units (ADUs) on their properties. Often referred to as a “granny unit,” an ADU can take… Read more

Cutting-Edge Glass Technologies


BERKELEY — If you’re planning to replace windows, sliding doors or other glass components in your home, you might want to put this off for another year or two. Glass technology is on the cusp of a major revolution, so if… Read more

Expert Video Tip

Video: Accessory Dwelling Units

Complete Video Transcription:

BERKELEY — Host, Sarah Rutan: As of 2020, laws have gone into effect that make it easier for California homeowners to build accessory dwelling units on their… Read more




  • Kohler

  • Andersen

  • CertainTeed

  • Grohe

  • Hansgrohe

  • Milgard


kitchen remodeling
home remodeling
bathroom remodeling
split level home remodeling
basement remodeling
exterior home remodeling
custom home remodeling
master bathroom remodeling
ranch home remodeling
green home remodeling
shower remodeling
residential remodeling
commercial remodeling
attic remodeling
living room remodeling
office remodeling
interior remodeling

home additions
kitchen additions
small home additions
split level home additions
custom home additions
room additions
ranch home additions
second story home additions
family room additions
mobile home additions
garage additions
modular home additions
porch additions
bathroom additions
sunroom additions
master bath additions
prefabricated home additions

Castro Valley
Komandorski Village
Mount Eden
Russell City
San Leandro
San Lorenzo
Union City


Associated Builders and Contractors (ABC) (http://www.abc.org/)
American Subcontractors Association (ASA) (http://www.assaonline.com/)
American Society of Concrete Contractors (ASCC) (http://www.ascconline.org/)
Better Business Bureau (BBB) (www.bbb.com)
California Building Industry Association (CBIA) (http://www.cbia.org/)
Contractors State License Board (CSLB) (http://www.cslb.ca.gov/)
California Department of Consumer Affairs (DCA) (www.dca.ca.gov)
Home Builders Association of Northern California (HBANC) (http://www.hbanc.org/)
National Association of Home Builders (NAHB) (http://www.nahb.org/)
National Association of the Remodeling Industry (NARI) (http://www.nari.org/)
North Coast Builders Exchange (NCBE) (http://www.ncbeonline.com/)
National Systems Contractors Association (NSCA) (http://www.nsca.org/)
National Kitchen & Bath Association (NKBA) (www.nkba.org/)

Know What You Want
Establish Your Goals and Requirements for Your Home Addition or Remodel

Many homeowners find that it helps to know the scope of their project and their overarching goals before talking to a home addition and remodeling contractor in Alameda County. By knowing what you want to accomplish and the end goal for your project, you’re more likely to be happy with the results of your home remodeling project.

So before contacting a local remodeling firm, ask yourself:

  1. What is the problem or challenge I want this remodel or home addition to address? (This could include a growing family, in-laws moving in, updating an older home or turning an unused space into a new family room.)
  2. Are there any specific requirements or wishes I have for the project?
  3. What is my budget for home remodeling or home addition costs?
  4. What characteristics and personal and professional qualities am I looking for in a Alameda County remodeling and addition contractor?
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What To Ask In Person
Interview Questions for Home Addition and Remodeling Contractors

Once you’ve narrowed down your choices by interviewing local remodelers via phone, meet with your top choices in person. You may find it beneficial to take notes on your conversations and recording each addition contractor’s answers, suggestions and general attitude about the project.

Add some job-specific questions of your own to the sample ones below:

  1. How much time will the remodel/home addition take, from designing through completion?
  2. What is your approach to a project of this size? (This will help you know what to expect if you hire this company for your remodel or home addition.)
  3. Will I be able to stay in my home during the remodel/home addition?
  4. Will this home addition or remodel add value to my home?
  5. Do you have any recent projects in my area of Alameda County where I can see how the house addition and home remodels look from the street?
  6. Do you have recent customer references I can call?
  7. Do you offer warranties and guarantees on your work? Will you put them in writing?
  8. How would I handle future service issues? Are you responsible for warranty work if there’s ever a problem with my home addition/remodeling project?
  9. What can I do to make the remodeling and addition process easier?
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  • What To Ask References
    Talk With Previous Customers of Local Remodelers and Home Addition Contractors

    Diamond Certified remodeling and home addition contractors are your best choice, because all certified companies have passed an in-depth ratings process that most other companies can’t pass. If you want quality from a Alameda County remodeling company, you can have confidence choosing a Diamond Certified remodeling contractor from the Greater Bay Area. Diamond Certified reports are available online for all certified addition and remodeling contractors. 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 remodeling company within reach, you’ll have to do some research on your own. In that case, it’s sensible to call some references provided by the Alameda County remodeling companies you’re deciding among. Keep in mind, though, that references provided to you by the home addition contractors 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 contractors will likely give you a few customers to call that they know are satisfied. If you do call references on your own, request a list of the company’s 10 most recent customers. This will help avoid them giving you only the names of customers they know were satisfied. Then, use these questions to get you started in your interview of previous customers.

    1. Were you satisfied with the home remodel/home addition work from (remodeling & addition company name)?
    2. What was the type and scope of job they did for you (new room addition, kitchen remodel, bathroom remodel, whole home remodeling, sunroom addition, basement remodel, home renovations, etc)
    3. Did the Alameda County remodeling contractor and home addition company you hired complete the work on time?
    4. Did the contractor keep you up-to-date on the status of the project?
    5. Were there unexpected costs? If so, what were they for and were they avoidable?
    6. If you live in a smaller town such as Castro Valley, Piedmont, Komandorski Village, Mount Eden, Pleasanton or in the rural Tri-Valley Area, did they charge extra to travel to your home?
    7. Did the Alameda County home remodelers show up on time?
    8. Did they clean up after finishing the home renovations?
    9. If you need home additions or remodeling work in the future, would you use this contractor again?
    10. Would you recommend them to friends or family?
    11. Can I visit your home to see the completed home renovations and room addition?
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  • Review Your Options
    Find and Hire Good Remodeling Companies and Addition Contractors in Alameda County

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

    Before signing a contract with a home renovation and remodeling contractor in Alameda County, make one final review of your choices and ask yourself the following questions:

    1. Can the remodeling contractors and addition builders you’ve interviewed meet your needs in terms of scheduling, design and construction preferences?
    2. Are the Alameda County remodeling/addition contractors knowledgeable about the scope and details of the home remodel/home addition you’re considering? Can they tell you which designs and products best suit your needs and why (i.e. whole home renovation, kitchen remodel, bathroom remodel, sunroom addition, basement renovation, attic remodeling, bedroom addition, etc.)?
    3. Is the renovation and remodeling company sensitive to your budget? Can they offer various solutions and finish products that fit your resources? Most home addition contractors will give you bids for Good, Better and Best options that include choices of design and aesthetics, prices, brand names/manufacturers and services.
    4. Do the remodeling and addition contractors in Alameda County offer warranties in the event of a product failure or construction/installation error? Will they put their guarantees in writing?
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  • How To Work With
    Get the Most Out of Your Remodel and Home Addition from Local Alameda County Contractors

    Before interviewing and choosing a good home remodeling company in Alameda County, decide the type of project you’re looking for and the scope of the work you want done. You should also know the budget range you’re looking to stay within. This will help you express yourself to the contractors you talk to, and will give each remodeling contractor and home addition builder the chance to bid on the same project. And it will help you define boundaries so that you don’t end up getting—and paying for—more work than you want or need.

    Knowing the scope of your home addition or renovation will give you a good idea of whether you want to stay in your home during the work or relocate while the construction is in process. Home renovations and additions can be loud, dusty and disruptive, but some are more intense than others. Consider the rooms you’re having remodeled or the location of the home addition and ask the home remodeling and addition contractors you interview whether you’ll be able to stay in your home during the work. You may want to consider moving to another location for the duration of the project if important rooms (like your kitchen and bathrooms) will be under construction, or if the contractor expects major interruptions in electricity or water.

    Sign a Contract with a Good Alameda County Remodeling Company
    Once you’ve found the Alameda County remodeling and addition contractor that is best suited to your job, you can move forward by obtaining a detailed estimate and signing a contract. The contract should include the price, start and end dates and any special requests you’ve agreed upon with your local home renovation contractor. You’ll also want to confirm any warranties or guarantees at this time and make sure they’re in writing in the contract.

    Read through the estimate and be sure you understand all terms and limitations before you sign the contract. The contract you sign with your Alameda County remodeling company is binding, so for your protection, never sign a blank or incomplete estimate.

    Prepare for Your Home Remodel and New Home Addition
    Most Alameda County remodeling contractors are professionals, including those in the larger cities of Oakland, Berkeley, Fremont, Hayward and San Leandro, but you can save time and money by planning for your home addition and renovation.

    Provide adequate storage space if required. Some remodeling contractors in Alameda County have facilities or travel trailers in which to store remodeling materials and building equipment, but others expect homeowners to provide a clean, dry and accessible storage area for these materials. Ask your home renovation contractor if you’ll need to have space for materials and, if so, how much space is needed.

    Supply clearance and parking space for work trucks. Construction vehicles are often large and may need special parking consideration depending on the size of your driveway or available street parking. Ask your contractor how many work vehicles will need parking space, and whether trailers or other large vehicles will be on site daily. It may also be wise to walk through your property with your Alameda County remodeling contractor and have them advise you of any clearance issues, lawn ornaments or potential hazards that you can move or minimize before the work begins.

    Prepare your home for construction dust. Remodeling and new addition construction is often a dusty job. Many contractors will provide taping and plastic barriers to prevent dust and construction debris from entering areas of your home that aren’t being remodeled or renovated, but you may be able to save time and money by preparing your home yourself. Talk with your remodeling contractor about steps you can take before the remodeling begins.

    Move and store unnecessary items. Remove furniture, decorations, rugs and other movable objects from the rooms to be remodeled. This will protect them from dust and damage, and will allow your remodeling contractors to move freely and avoid injury. You may also want to temporarily store any heirlooms or expensive items that are located in high traffic areas of your home. Keep in mind that construction can cause items to shift and fall from shelves and walls, and take down any artwork or decorations.

    Keep children and pets away from the construction area. Your remodeling and home addition contractors shouldn’t be expected to watch out for kids and pets. So for their safety, keep any household pets or children out of the area when your remodeling contractors are working. It’s wise to keep everyone away from the construction area even when no remodelers are working as building tools, unfinished construction and exposed wires may pose a safety hazard.

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  • Be a Good Customer
    How Can You Be a Good Remodeling Company Customer?

    The best local remodelers and home addition contractors in Alameda County will have superior remodeling and building skills that will enable them to do good work and offer a fair value. But you also play a part in the success of your remodel and home addition. Here are a few simple steps you can take to be a good customer when hiring a Alameda County remodeling contractor and home addition company.

    • Be clear and upfront with the remodeling and renovation specialist. Let them know what you want from your home renovation or room remodel, the long-term outcome you’re expecting and specific ways they can meet your expectations.
    • Remember, a smile goes a long way!
    • Before you hire a Alameda County remodeler or home addition contractor, restate your expectations and goals, and reiterate to the remodeling company representative your understanding of the agreement. Most problems with local remodelers and home addition contractors occur because of a breakdown in communication. By being clear about your expectations and theirs, you can avoid most conflicts.
    • Ask your remodeler if you should call to check on the progress or if he will call you with updates on your home addition.
    • Be sure your service representative has a phone number where they can reach you at all times while they’re remodeling your home. The addition process will move along more smoothly if your contractor can reach you for any necessary updates, questions or work authorizations.
    • When your remodeling contractor contacts you, return calls promptly to keep the home addition or remodel on schedule.
    • Pay your remodeling and addition contractor promptly.

    Why would you want to be a good customer? Alameda County home addition and remodeling contractors appreciate customers who are straightforward, honest 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 very well go smoother and any problems may be more easily resolved.

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Check The Work
Check The Remodeling and Home Addition Work

Once the work is completed, walk though your new home addition or remodel with your renovation contractor. Check the work against your invoice and make sure that it stands up to your expectations and is what was promised in your contract.

The invoice from your Alameda County remodeling contractor should include the following:

    • The name, physical address and state license number of the remodeling contractor.
    • A complete list of all work performed.

<li>An itemized list of all construction materials.

  • The total cost for your home renovation or home addition, including an itemized amount due for labor.
  • A written explanation of any warranties or guarantees provided by the product manufacturers and the home remodeling contractors.


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Written Warranties
Request Written Guarantees for All Home Remodeling Services

Before your remodeling and home addition contractor leaves the job, confirm with them any warranties and/or guarantees you’ve agreed upon.

Not all home addition builders in Alameda County offer warranties on their work and materials, but if the remodeling company you’ve chosen does, they should give you a written warranty that includes the following:

  • The home addition contractor’s name and physical business address.
  • The remodeling and renovation company’s state license number. (You can verify this online at www.cslb.ca.gov and check for any outstanding complaints and violations.)
  • What remodeling or home addition materials and workmanship are covered, including whether the contractor will replace or repair defective items or give you a refund if you 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 warranty work or pay a prorated amount).
  • Terms of and limitations.
  • If the home remodeling warranty coverage is transferable to the new owner if you sell your house.
  • Any exclusions to the warranty must be in writing.
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Top 10 Requests
Top Service Requests for Remodeling and Additions Contractors

The most popular types of remodeling and addition projects for contractors in Alameda County are listed below, including examples of each kind of remodeling job.

Custom Remodeling Plans
Home remodeling contractors in Alameda County can create custom remodeling plans based on your existing home and your requirements and wishes for your home remodel or addition.

Kitchen Remodeling
Kitchen remodeling includes renovations of the design, style and structure of a kitchen. A kitchen remodel may comprise new kitchen design plans, kitchen counters, kitchen cabinets, new kitchen appliances, new flooring and new kitchen lighting.

Bathroom Remodeling (Bath Remodeling)
A minor bathroom remodel will change the appearance of an existing bathroom, while a larger-scale bath remodel can change the size and usage of an existing bathroom. Most bathroom renovations in Alameda County include new bathroom fixtures, paint, bathroom flooring, bathroom tile, bath cabinets, new showers and bathtubs, new bathroom mirrors and even new bathroom floor plans.

Home Addition Building
Home additions, including master bedroom additions, family room additions, garage additions, in-laws quarters, mud room additions, second-story additions, kitchen extensions, sunroom additions, dormer additions, front porch additions and bonus room additions, are a great way to add value and extra space to existing homes.

Sunroom Addition
Also known as four-season rooms, sunrooms generally cost less than regular home additions. They are a supplemental home addition (rather than a functional or necessary home addition, like that of a bathroom addition, kitchen or bedroom addition) that provide extra space for reading and entertaining. Many sunroom additions come in the form of a prefabricated kit and do not include central heating or cooling systems.

Home Remodeling
Home remodeling, done either as a single-room remodeling project or as an entire home renovation, includes changing the appearance and even the design of the home. Most home remodels in Alameda County include new home floor plans and home improvements such as new flooring, new windows, kitchen and bathroom remodeling, basement remodeling, attic renovations, new paint, new appliances and other home interior renovations.

Basement Remodeling
Basement renovations are a popular home remodeling project. Most basement renovations turn unused basement space into a finished basement with a family room, bedroom, basement bathroom, recreation room (rec room), or other usable space. Alameda County basement remodeling plans may include basement design, the installation of basement walls, new carpeting and flooring, a basement fireplace and a basement bar.

Home Renovations
Like home remodeling, home renovations can change the design, functionality and appearance of your home’s interior. Home renovations, whether in the kitchen, bathroom, basement, bedrooms or living rooms, often start with home renovation plans from a qualified Alameda County remodeling contractor and include new house interior designs, new flooring and wall coverings, new countertops and cabinets, construction of new walls and home improvements like new fireplaces and new lighting.

Room Addition
Room addition to homes can be any size and may include bathroom additions, family room additions, modular home additions, sunroom additions and bedroom additions. Room additions are often a complex process. Since the new room addition plans should match your existing home and must correctly connect to the existing structure, it’s wise to hire an experienced Alameda County home addition contractor to draw up your room addition plans and complete the new addition.

Garage Addition
Garage additions create more space for vehicles, storage and even future living space. Garage plans can be drawn to add on to existing garages and existing homes, or can be free-standing garages. If you have future plans of adding a bathroom or renovating your garage to create living space, you can have your Alameda County addition builder install plumbing and electrical in your new garage addition.

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Glossary Of Terms
Glossary of Terms Related to House Remodeling and Home Additions

bathroom remodel
A bathroom remodel will change the size and appearance of an existing bathroom. Most bathroom remodels in Alameda County include new bathroom floor plans, updated bathroom fixtures, flooring, tile, bathroom cabinets and countertops, new bathtubs and shower enclosures.

Also known as: bathroom remodeling, bathroom remodels, bathroom redesigns, basement bathroom remodels, small bathroom remodel, master bathroom remodeling, basement bathroom remodeling, bath remodels

basement renovations
Basement renovations turn unused basement space into finished basements with a family room, extra bedrooms, basement bathroom, recreation room (rec room), game room, or other usable space. Alameda County basement remodeling contractors provide basement design, basement wall installation, new carpet and flooring, basement fireplaces and basement bars.

Also known as: basement remodels, basement remodeling, basement remodeling plans, basement bathroom remodeling, basement finishing, finishing a basement, basement designs, basement remodel design

bedroom addition
Adding a new bedroom to an existing home through the process of a room addition is known as a bedroom addition. Bedroom additions can be added on top of an existing home as a second-story addition, above a garage or alongside the existing structure.

Also known as: bedroom additions, master bedroom addition, master bedroom addition plans

bedroom remodeling
Remodeling an existing bedroom can include new bedroom floor plans, the addition of a master bathroom, new bedroom designs and bedroom redecorating.
Also known as: bedroom renovation, bedroom designs, bedroom renovations, master bedroom remodeling, master bedroom remodel design

change order
Work that is changed during construction and differs from the work contracted for. Change orders require an addendum to the renovation and addition contract and ay result in additional charges.

Also known as: construction change orders, remodeling change order, home renovation change order, change order request, contract change order, remodeling change request

custom remodeling plans
Custom remodeling plans are based on your existing home and your requirements for your new home remodel and home addition. Good Alameda County remodeling and addition contractors can provide customized home remodeling plans for every project.

Also known as: custom home remodeling plans, custom house plans, custom basement remodeling plans, custom home remodeling floor plans, custom kitchen remodeling plans, custom home addition plans, custom home renovations, custom home addition floor plans

An initial bid that lists the anticipated costs and expenses of a home remodel or home addition. An estimate should include itemized lists for labor and materials. Once signed by the remodeling contractor and homeowner, an estimate is a binding document.

Also known as: home remodeling estimate, home renovation estimates, home addition estimate, kitchen remodeling estimate, home remodeling cost estimate, bathroom remodel estimate

garage addition
Garage additions can add on to existing garages and homes, or can be free-standing. If you have future plans of adding a bathroom or turning your garage into living space, a Alameda County addition builder can install plumbing and additional electrical wiring in your new garage addition.

garage remodel
Existing garages can be renovated into living space, additional rooms, mother-in-laws quarters, game rooms or storage space by Alameda County remodeling contractors.

green remodeling
Many Alameda County home addition and renovation contractors offer green remodeling services. Green remodeling can be defined as home remodeling with an emphasis on sustainability, maximizing natural resources and efficient and ecologically-responsible design and construction techniques.

Also known as: eco-friendly remodeling, green home remodeling, green building, green remodels, green remodeling designs, green kitchen remodel, green bathroom remodel, sustainable remodeling

home additions
Home additions, including master bedroom additions, second-story additions, kitchen extensions, sunroom additions, family room additions, modular home additions, garage additions, in-laws quarters, mud room additions, dormer additions, front porch additions and bonus room additions, can add value and space to existing homes.

Also known as: room additions, second-story additions, adding-on, add-on home, addition to home, building an addition, addition building

home remodeler
A home remodeler is a remodeling contractor that specializes in renovating existing homes. Many home remodelers in Alameda County are also home addition builders who can add new rooms, second story additions and new garage additions to existing homes.

Also known as: house remodeling contractors, remodelers, home renovation contractors, remodeling construction company, home contractors, home addition contractors, remodel contractors, remodeling construction, remodeling contractor, home improvement contractor

home remodeling
Home remodeling can refer to a single-room remodeling project or an entire home renovation. A full house remodel includes changing the floor plan or design of the home to modify the appearance of the home. Most house remodels in Alameda County include new home floor plans and home improvement renovations such as new flooring and windows, kitchen and bathroom renovations, basement finishing, attic remodeling, fresh paint, new appliances and other home interior changes.

Also known as: home renovation, home makeover, renovations, house remodeling, home additions, remodel a home, home remodel, construction remodeling, home restoration, home remodeling services, room remodeling

home restoration
A home remodel that is done to preserve the original structure of the house is referred to as a home restoration. Home restorations may also restore the original style, structure and historic relevance of a home.

Also known as: historical home restoration, historic home remodeling, antique home renovation, house repair and restoration, home restoration companies, home restorers, restoration for homes, house refinishing, house restoration services

kitchen remodel
Kitchen remodeling in Alameda County often involves renovating the design, style and structure of kitchens. A good kitchen remodel may comprise new kitchen design plans, kitchen counters, kitchen cabinets, new kitchen appliances, new flooring and new kitchen lighting. Some remodeling companies in Alameda County specialize in kitchen remodeling and only do kitchen designs and renovations.

Also known as: kitchen remodeling, kitchen designs, remodeling for kitchens, kitchen remodels, remodel kitchen, new kitchen plans, kitchen renovations, kitchen style renovations

room addition
Room additions may include bathroom additions, family room additions, modular home additions, sunroom additions or conservatory additions and bedroom additions. Room additions are often a complex process regardless of the size of the room addition. Since new room addition plans should match the existing home and must correctly connect to the existing structure, it’s wise to hire experienced Alameda County home addition contractors to draw up room addition plans and complete new additions.

Also known as: home additions, new room additions, large room additions, small room additions, home addition plans, addition to house, adding on to a house

Subcontractors are construction professionals who are hired by construction companies to perform specific tasks or complete work for the contractor. Some Alameda County home renovation contractors hire subcontractors to complete certain phases of home additions and remodeling projects, including plumbing, heating and cooling, electrical and finish work. Sub-contractors should be qualified and carefully vetted by the remodeling contractors to ensure a quality home renovation or remodel.

Also known as: subs, independent contractors, assisting contractors, general contractor subs, construction workers, individual contractors, sub construction contractors, subcontracting employee

sunroom addition
Also called four-season rooms, sunroom additions are generally less expensive to build than room additions for homes. Sunrooms are considered supplemental home additions that provide extra space for reading and entertaining rather than functional or necessary home additions, like bathroom additions, kitchen and bedroom additions that add living space to homes. Some sunroom additions are available as prefabricated kits and do not include central heating or cooling.

Also known as: four-season rooms, 4 season rooms, enclosed porches, conservatory additions, sunporch additions, screened porch additions, screened-in porches, solarium additions, patio enclosure, screened enclosure additions, screened rooms, pool room additions, three-season rooms, 3 season rooms, patio room additions, California rooms, garden rooms

whole house remodel
Whole house remodels are remodeling projects that renovate an entire home rather than just one or a few rooms. Whole house remodels may involve gutting and rebuilding the interior of a home from the subflooring to the ceiling and might include moving, adding or removing walls. Whole house remodels can be a cost-effective way to completely renovate an old house to make it feel like a brand new home.

Also known as: whole house remodeling and addition, whole house remodeling project, entire house remodel, complete house remodel, complete home remodeling, complete home makeover, complete renovation, whole home redesign, top-to-bottom remodel, home renovations, whole home renovating, small home remodeling, small home expansion, large home remodeling

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Frequently Asked Questions
Alameda County Remodeling and Additions Contractors FAQ

Q: Why choose a Diamond Certified remodeling contractor and addition builder?
A: Diamond Certified helps you choose a local remodeler with confidence by offering a list of top rated local companies who have passed the country’s most in-depth rating process. Only home remodeling and renovation companies 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 remodeling contractor and addition builder.

Q: Why would I want to remodel or add to my home?
A: Remodeling can modernize your home, improve energy efficiency, and give you a new sense of pride in your home. Many Alameda County homeowners find that home remodeling projects allow them to upgrade their current home so that they’re happier living in their home

and increase the resale value of their home. Like home renovations, home additions can add more usable space to a home. Whether you add a sunroom, a new garage or a bedroom addition, home additions add square footage and usability to your house.

Q: Should I hire a remodeling and addition contractor for my project? Can’t I just do it myself?
A: DIY stores and home improvement centers may carry many of the tools and materials for your home remodeling and addition project, and some homeowners certainly can take on these projects themselves. However, many homeowners find it saves them time, money and frustration to hire a competent, experienced remodeling contractor for their home renovation. A good remodeling and addition contractor will help you plan, execute and finish the project with much less hassle than you can expect when taking on a project yourself.

Q: How much will my remodeling project/home addition cost?
A: The cost of home renovations depends on the size and scope of your project and the quality of materials used for the addition or remodeling. When getting estimates from local remodeling contractors and home addition builders in Alameda County, make sure you’re asking the contractors to big on the exact same scope, size and materials in order to get accurate bids.

Q: Why do my three estimates vary so greatly in price.
A: It’s not uncommon for prices to vary from contractor to contractor. But if the gap between the highest price and the lowest price seems too substantial to be correct, or one bid is much higher or lower than the others, talk with the contractors again. It may be that one contractor didn’t understand the scope or details of the project they were bidding. Ask the remodeling contractors to fully explain their bids, and if they are vague about their answers, move on to the next contractor. Beware of bids that seem artificially low, as some home renovation contractors purposely underbid jobs and then tack on expensive change orders during the construction.

Q: How long do home remodels and additions take?
A: Depending on the size and scope of your project, your remodel may take a few weeks to a few months and room additions can take several months. Problems found during demolition, unforeseen challenges and the skill of your contractor can also add to the timeline. It’s important to get a clear and reasonable time frame estimate from your Alameda County remodeling contractor and home addition builder when getting initial cost estimates.

Q: How much value will my addition or renovation add to my home?
A: The amount of value added to your home depends greatly on the renovation you choose and the quality of the workmanship and materials. If you’re planning to live in your home long-term, you may find that your room addition and home renovation will add more to your quality of living in your home, even if it doesn’t add to the resale value of your home. On the other hand, if you’re planning to sell your home soon, you may want to consult with contractors and real estate agents about which home additions and remodeling projects will add the most value to your home. For an idea of the added value of some of the most common remodeling projects, you can visit this site that compares cost and value of remodels.

Q: Do I need to hire an architect, or can my Alameda County remodeling contractor and addition builder draw my home renovation designs?

A: Depending on the size and scope of your project, there are pros and cons to hiring an architect to draw up home remodeling plans and hiring a remodeling contractor who offers design/build services for home renovations. Here are a few to consider:

  • A general rule of thumb that many builders follow is that if you’re tearing down walls or moving walls, or if your project includes an addition and new construction, hire an architect.
  • Architects are trained to look beyond the outward design and consider the usability of a space, local building codes and zoning regulations, and can draw a complete set of home remodeling and home addition plans.
  • Some design/build remodeling contractors in Alameda County can offer lower costs and shorter construction time frames by providing both home designs and building services.
  • Some Alameda County remodeling contractors prefer to do their own designs in-house and have the ability to draw home remodeling and addition plans in-house.
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