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

  • Why this rating is the most accurate.
  • Our editors gather deep company info.
  • Performance is Guaranteed.

Diamond certified companies are top rated and guaranteed

Why Trust Diamond Certified Drywall Contractors Rated Highest in Quality?

A drywall contractor applies tape and mud to sheetrock.

You are the customer. If your goal is to choose a drywall contractor that will deliver high customer satisfaction and quality, you’ll feel confident in choosing a Diamond Certified drywall company. 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 drywall installer and is unparalleledXXXXX

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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Luis Baltodano is owner of Baltodano’s Drywall, a Diamond Certified company since 2015. He can be reached at (925) 233-6250 or by email.

Luis Baltodano

diamond certified contributor profile and expert article

Luis Baltodano: Stepping Toward Success

By James Florence, Diamond Certified Resource Reporter

BRENTWOOD — When Luis Baltodano got his first job out of high school, he didn’t know he was taking his first step toward a long-term career. “After high school, I needed a job, so I just started calling around to different companies in the Bay Area,” he recounts. “Eventually, I found work with a small drywall company in the East Bay. I started as a laborer, worked my way up to being a taper and eventually became a journeyman drywall finisher. After working for a couple of different companies, I decided I was ready to do my own thing and started my own drywall business.”

Today, as owner of Baltodano’s Drywall, Luis cites multiple things he enjoys about his job. “I like helping clients with their projects and educating them about what we do. I also like being my own boss—it’s a big responsibility, but it’s very rewarding.”

Originally from Nicaragua, Luis came to the United States in 2000 and resides today in Antioch with his wife, Concepcion, and their two children. Outside of work, he spends most of his free time staying active. “I weight train daily at home and play soccer on the weekends,” he details. “I also like being involved in my kids’ sports activities. For example, my daughter does boxing, so I enjoy supporting her in that.” Additionally, Luis and his family enjoy going camping a few times each year.

In regard to his professional career, Luis espouses the importance of respecting clients and their homes through on-the-job cleanliness. “A lot of drywall companies don’t think about cleanliness, but it can make a big difference in terms of customer satisfaction,” he explains. “That’s why we make a point of keeping a clean worksite and take extra measures to protect each customer’s home and property. It all comes down to treating the customer’s house like it was our own.”

Ask Me Anything!

Q: What’s your favorite sports team?
A: Real Madrid C.F.

Q: What’s your favorite local restaurant?
A: La Pinãta in Pittsburg.

Q: What’s your favorite TV show?
A: “The King of Queens.”

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

Q: What’s your favorite holiday?
A: The 4th of July, because we usually go camping that weekend.

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Tips for Drywall Repair


BRENTWOOD — From relocated electrical outlets to damage caused while moving furniture, there are many scenarios that require drywall repair. If you’re planning to patch an area of drywall in your home, you’ll need to make sure you’re using the… Read more

Expert Video Tip

Video: How to Fill a Gap with Drywall

Complete Video Transcription:

BRENTWOOD — Host, Sarah Rutan: To fill in the wall gap around a newly installed electrical outlet, you’ll need to know the proper technique. Today we’re in Brentwood… Read more




Sheetrock Drywall
Lafarge Gypsum Drywall
EagleRoc Drywall
Imperial Drywall
Georgia Pacific Drywall (GP)
Unifix Drywall
Westroc Industries Drywall
James Hardie Gypsum Drywall
American Gypsum Drywall
USG Drywall
National Gypsum Drywall
QuietRock Drywall
Type X Drywall
Gold Bond Drywall
ToughRock Sheetrock
Allied Manufacturing Drywall
Titan Drywall
Duroc Drywall

drywall installation
drywall repair
drywall plastering
hanging sheetrock
installing acoustic sheetrock
patching drywall
drywall sanding
drywall hanging
drywall removal
drywall mud
drywall taping
drywall texturing
drywall plaster repair
wall board installation
drywall ceilings
drywall finishing
drywall painting
residential drywalling

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 License Board (CSLB) (www.cslb.ca.gov)
California Department of Consumer Affairs (DCA) (www.dca.ca.gov)
North Coast Builders Exchange (NCBE) (www.ncbeonline.com)
Gypsum Association (GA) (www.gypsum.org/)
Drywall Recycling (www.drywallrecycling.org/)
Drywall Information Trust Fund (www.drywallca.com/)
Northern California Drywall Contractor’s Association (NCDCA) (www.drywallca.com/frame_nca.html)

Know What You Want
Figuring Out What You Want from a Drywall Contractor in Contra Costa County

You will want to consider many factors before selecting a drywall contractor in Contra Costa County in the cities of San Ramon, Danville, Brentwood, Martinez and Pleasant Hill. If you take the time to consider your needs and what you want, then you will be able to choose a drywall contractor who can most successfully meet those needs and give you the service you want. Write down everything that you are searching for before you begin your research. Consider the following questions before you choose your drywall contractor.

  1. Do I want a Diamond Certified company that is rated best in quality and backed by the Diamond Certified Performance Guarantee?
  2. What personal and professional characteristics would I like my Contra Costa County drywall contractor to have such as  good communication skills, honesty, reliability, cleanliness, etc.?
  3. Are there any changes I need to make before the drywall contractor begins their work?
  4. What is the specific project I want drywalled?
  5. What is my budget for drywall work?
  6. What is my timeline for completing the drywall work?
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What To Ask In Person
Ask These Questions When Speaking in Person with a Contra Costa County Drywall Contractor

Once you’ve narrowed down the field to a few of the best drywall contractors, visit some in person to meet your representative. As you interview drywall contractors in Contra Costa County, including the larger cities of San Ramon, Danville, Brentwood, Martinez and Pleasant Hill you may want to ask the following questions.

  1. What is your timeline for bidding the contract and completing the drywall work?
  2. How many projects similar to mine have you completed?
  3. What will you do with the trash and debris?
  4. How long do you expect the drywall project to take?
  5. Do you carry workers’ compensation and liability insurance?
  6. How do you price drywall work?
  7. What type of warranty do you offer and what are the terms?
  8. Are construction permits needed for this drywall work and, if so, will you be responsible for getting them?
  9. Do you hire subcontractors for any of the drywall work?
  10. What professional organizations are you a member of?
  11. How and when do you clean up the construction site?
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  • What To Ask References
    Interview Questions for Previous Customers of a Contra Costa County Drywall Contractor

    It’s best to choose a Diamond Certified drywall contractor because all certified companies have passed an in-depth ratings process that most other companies can’t pass. If you want quality from a drywall 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 drywall contractor 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 drywall contractor. Keep in mind, though, that references provided to you by the drywall contractor are not equal in value to the large random sample of customers surveyed during the Diamond Certified ratings process. That’s because references given to customers from companies are cherry-picked instead of randomly selected from all their customers. So the contractors will likely give you a few customers to call that they know are satisfied.

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

    1. Were you satisfied with the service from the drywall contractor?
    2. Were there any unexpected costs? If so, what?
    3. Did the drywall contractor keep you up to date on the status of your project?
    4. If you live in a smaller area such as Clyde, Cowell, Crockett and Diablo, did you have to pay extra for their travel expenses to your home?
    5. Did the drywall contractor show up on time?
    6. If you need a drywall contractor in the future, will you consider hiring this drywall contractor?
    7. What type of drywall project did you hire the drywall contractor to complete?
    8. Would you recommend this drywall contractor to your family and friends?
    9. Did they finish the job on time?
    10. Did the drywall contractor clean up after completing the job?
    11. Do you feel like the drywall contractor charged a fair price for the quality of the work?
    12. Did the drywall contractor seem receptive to your input?
    13. Did the drywall contractor provide answers to questions to your satisfaction?
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  • Review Your Options
    Selecting the Right Drywall Contractor for You in Contra Costa County

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

    Choosing a drywall contractor is an important decision for you and your family. Before deciding on the best drywall contractor for you in Contra Costa County in the cities of Concord, Richmond, Antioch, Walnut Creek and Pittsburg, it’s important to consider the following questions.

    1. What is my time frame for this drywall project: when do I intend to begin it and when do I need to have it completed?
    2. Is my drywall contractor listed in the Better Business Bureau as having complaints filed against him? If so, were they valid complaints that required disciplinary action?
    3. Is the drywall contractor’s estimate within my budget?
    4. Can the drywall contractor in Contra Costa County meet your needs when it comes to scheduling, customer service and experience?
    5. Which drywall contractors in Contra Costa County offer the better warranty?
    6. Is my drywall contractor well-established in the community?
    7. Does my drywall contractor of choice have good references that I have checked?
    8. Is my drywall contractor of choice charging a reasonable price for quality work?
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  • How To Work With
    Getting Ready to Sign a Contract with a Drywall Contractor in Contra Costa County That You Can Trust

    After you have found a Contra Costa County drywall contractor that you can trust, you will have peace of mind and you can relax as you get ready for your drywall project. A Contra Costa drywall contractor will lead you through the process step by step.

    Once you’ve hired a drywall contractor in Contra Costa County, including the smaller cities of Alamo, Bay Point, Bethel Island and Blackhawk, you will have an initial meeting between you and the contractor to discuss your requirements and the contractor’s qualifications. An estimate of the project and its feasibility is drawn out. Furthermore, you will discuss the budget and design of the project as well as any restrictions and permissions that will be needed. Use the notes that you have taken so you can accurately describe any concerns that you have. Be as detailed as possible and don’t be in a rush. It is as important for you to hear their suggestions and observations as it is for them to hear you. If you don’t understand something, ask for an explanation.

    It is important for you to completely comprehend the drywall project and what it entails. The contractor will provide you with an estimate based on the specifications. He will also offer choices. Once the final contract has been drawn, the next step will be applying for permits. Last of all, the installation and financing process will begin.

    Be sure to get all estimates in writing before any work begins. The estimate should include an itemized list of the cost of supplies and the labor. Don’t ever sign a blank estimate.

    Getting a Contract with a Drywall Contractor
    When you feel satisfied with the information you have received from your Contra Costa County drywall contractor, you are ready to sign the contract. Be sure that they have a phone number where you can be reached at all times. Once the contract is drawn up, it should be signed by both parties: you and the drywall contractor. If any sub-contractors will be involved, they should sign the contract as well. The contract should protect the interests of both you and the contractor. Expect the drywall contractor to stay within the estimate. However, if the actual cost exceeds the original amount of the estimate, they must get your approval before moving ahead.

    You contract should include the following:

    • A clear, concise, and complete description of the project, including start and completion dates. It should also include who will be responsible for each aspect of the project.
    • Who will be responsible for obtaining necessary permits (this is usually the contractor).
    • Detailed materials list: product, size, color, type, model, and brand name. Any additional or alternate materials that may be used if necessary should also be listed.
    • Warranties should be written and the length of time as well as limitations should be covered. Warranties should cover materials and workmanship, and names and addresses of the warrantor. This may include the contractor, manufacturer, and distributor.
    • How “change orders” will be handled. Any changes or additions to the project should be written up in the contract so that the conditions for change are pre-determined. Furthermore, the contract should list how and when payment will be made for adjustments.
    • Contractor’s name, physical address, mailing address and phone.
    • The estimate or quote of the project.
    • A payment schedule as well as the terms for the contractor, subcontractor(s) and suppliers.
    • Any oral promises made.

    Getting Ready for Your Contra Costa County Drywall Contractor
    Professional drywall contractors are able to handle the very small to very large aspects of their work. However, depending on if you are having a brand new project or having drywall repair there are some things that you can do to prepare for them and to make their progress in your drywall work go more smoothly. Doing these things may even cut down on their labor costs and can keep your home and belongings from being damaged.

    Provide parking space and room for their work vehicles to maneuver. Drywall contractors often have large vehicles that require more space than average. Contact your contractor before they begin building and ask them how many parking spaces they need and how much room they need. It is also helpful to walk through the area with your contractor so any hazards or clearance issues can be pointed out before the actual work begins.

    Remove any furniture or movable items from the area. Before they begin work on your drywall project, remove all of the objects that may be in the way.

    Keep your pets and children away from the area. Your drywall contractor will be focused on your project and should not have to watch out for your pets or children at any time. This not only prevents accidents and injury but also any expense that comes from accidents that may happen because of children and pets being in the way.

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  • Be a Good Customer
    Choose to be a Good Drywall Contractor Customer

    It’s the drywall contractor’s responsibility put in quality drywall using the best possible installation techniques. But you play a big part in the success of your drywall installation, too. Here are a few simple steps you can take to be a good customer when hiring a Contra Costa County drywall contractor.

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

    Why would you want to be a good customer? Drywall contractors in Contra Costa County 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 Completed Contra Costa County Drywall Contractor’s Work with the Written Invoice

When the drywall contract work is completed, your drywall contractor is required to give you a written invoice. This must include:

  • The name and physical address of the drywall contractor
  • The total drywall project cost, including the amount charged for labor
  • A list of all work performed, including the warranty
  • An itemized list of all merchandise purchased or included
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Written Warranties
Ask for Written Warranties from Your Contra Costa County Drywall Contractor

Most good drywall contractors will offer some type of warranty on the drywall work. Before the drywall contractor leaves, confirm any warranties offered by the drywall contractor in Contra Costa County, including the larger cities of San Ramon, Danville, Brentwood, Martinez and Pleasant Hill. All details of the warranty should be provided to you in writing. The written warranty document must detail the following:

  • The drywall contractor’s name and physical address
  • The length of time as well as limitations should be covered. Warranties should cover materials and workmanship, and names and addresses of the warrantor. This may include the contractor, manufacturer, and distributor.
  • Your responsibility in the case of a problem with the drywall project and what you need to do in order to redeem the warranty.
  • If the drywall contractor warranty coverage is transferrable to the new owner in the event that you sell the home.
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Top 10 Requests
Most Popular Contra Costa County Drywall Contractor Requests

Drywall Installation
Drywall installation is the installation of drywall either in a new area or an area being repaired.

Drywall Taping
Drywall taping is the taping of drywall that has been installed.

Drywall Removal
Drywall removal is the removal of drywall because of damage or remodeling, etc.

Drywall Finishing
Drywall finishing is the last of the process of drywall installation and completes the drywall before paint or paper is applied.

Drywall Texturing
Drywall texturing is the texturing that is done after drywall is installed to make the surface ready for paint or wallpaper.

Drywall Plaster Repair
Drywall plaster repair is the repair of drywall plaster.

Drywall Mud
Drywall mud is the application of mud on drywall plaster.

Patching Drywall
Patching drywall is the process of repairing or patching an area of drywall that has been damaged or needs replacement.

Drywall Plastering
Drywall plastering is the process of plastering drywall.

Acoustic Sheetrock
Acoustic sheetrock is sheetrock or drywall that is specifically designed to help control acoustics.
Top 10 Brand Requests for a Contra Costa County Drywall Contractor

  • Imperial Drywall
  • EagleRoc Drywall
  • ToughRock Sheetrock
  • Gold Bond Drywall
  • Titan Drywall
  • Georgia Pacific Drywall
  • Unifix Drywall
  • USG Drywall
  • Type X Drywall
  • National Gypsum Drywall
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Glossary Of Terms
Glossary of Terms for Good Drywall Contractors

An adhesive is something that will cause two or more materials to bond together.

all-purpose compound
All purpose compound is a powder that is mixed with water and is then used for covering joints and setting tape.

Backing board is gypsum wallboard which is used as the first layer in a several layer wall system.

base coat
Base coat is the base coat of compound used when you are going to apply multiple coats.

Baseboard is the finishing trip put in where the walls and the floor meet.

Beveled edge is the edge of a wallboard panel which is tapered.

Blister is the joint tape that is not bonded.

Bullnose is the finished edge that is curved.

butt joint
Butt joint is made when two pieces of wallboard butt up to each other.

chalk line
Chalk line is a tool that is made up of string and powdered chalk. It is used to make a straight line on a surface.

Control joints relieve the stress which is caused by large ceiling and walls.

Corner bead is sheet metal that is placed in the corners of drywall on the outside corners before the mud is put on.

Dimple is the indention left on sheetrock when a nail is hit by a hammer.

Drywall primer is a material that fills pores and areas.

Drywall is a panel that is covered with paper and made of compressed gypsum. Drywall is used in most homes.

Also known as: wallboard, gypsum board

Field is the area of drywall that is measured.

fire taping
Fire taping is the taping the joints in the drywall to stop any paths where fire may begin and travel. After the tape is applied, it is finished with a coat of compound.

Also known as: fire tape

fire wall
Fire wall is a wall or partition that is designed to stop the spread of fire.

Also known as: fire walls, firewall

Furring is strips of metal or wood that are used on a wall to be a fastener so that the finishing material can be attached.

Greenboard is drywall that is water resistant.

Gypsum is a soft mineral that is used for making drywall or sheetrock.

Insulation is used in walls to help keep heat or cool in and also to help control sound.

Also known as: insulate

Mud is used to cover sheetrock and joints and for texture.

Also known as: joint compound

polyvinylresin adhesive
Polyvinyl resin adhesive is used to seal drywall.

Also known as: PVA, drywall sealer

Ripper are strips of drywall that are narrow.

Score is to use a knife to lightly make a line on a surface so that it is “scored” to be easily cut or broken.

Also known as: scored, scoring

Seam is a drywall joint that has been taped.

skim coat
Skim coat is a thin coat that is “skimmed” over the surface to fill in any imperfections.

Texture is the treatment of drywall to create texture on the surface.

toppingjoint compound
Topping joint compound is a material that is used for sanding the 2nd and 3rd coats.

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Frequently Asked Questions
Frequently Asked Questions for Local Drywall Contractors

Q: Why choose a Diamond Certified drywall contractor?
A: Diamond Certified helps you choose a drywall contractor with confidence by offering a list of top-rated local companies who have passed the country’s most in-depth rating process. Only drywall contractors 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 ongoing research and ratings. And your purchase is backed by the Diamond Certified Performance Guarantee. So you’ll feel confident choosing a Diamond Certified drywall contractor.

Q: How can I be sure that I am hiring a good drywall contractor?
A: Choosing a Diamond Certified drywall contractor will help ensure that you are getting a contractor you can trust. This is the best way to hire a good drywall contractor and avoid any scams. If you are unable to hire a Diamond Certified drywall contractor in your area, then look for a local drywall contractor that has worked for someone you know. Be sure to call references of the drywall contractor you are considering. Also, check with any organizations the drywall contractor is a member of, as well as local consumer reporting agencies and the CSLB to see if the contractor has any complaints against their record.

Q: What does the backing on drywall do to prevent fire?
A: Backing on drywall is constructed in such a way that it should remain stable for an hour or longer in the unfortunate event of a fire. Checking for backing is part of the inspection process and must be applied in order to pass on certain drywall areas. Backing adds strength to drywall. When a fire hose is spraying water on the drywall, the drywall should be able to keep its structural integrity for sixty seconds of direct spray.

Q: When my drywall is being installed, will there be dust?
A: Yes, dust from drywall can be very heavy. Your contractor will do everything possible to protect your home from the dust but, unfortunately, dust is a part of drywall installation. You will want to keep your air conditioner and heater turned off while the drywall is being installed. Your drywall contractor may bring in fans to help with the ventilation during the drywall process.

Q: Is hanging drywall a difficult job?
A: Hanging drywall is the most physically demanding part of installing drywall. The drywall installation requires patience and it is very demanding work. Besides hanging the drywall, there is the application of tape and mud. You want a drywall contractor that can do the difficult work but also has an artistic eye to do a great job.

Q: Do you need to use greenboard in the bathroom?
A: Yes, greenboard is necessary in any room that has regular use of water such as the bathroom and laundry areas. Greenboard is moisture resistant. Greenboard doesn’t work in areas like showers or bathtub walls. For those areas, you need something that is waterproof not just water resistant.

Q: Is sheetrock fire resistant?
A: Yes, sheetrock or drywall is fire resistant. However, it is not fireproof. There are different levels of fire resistance with sheetrock. Your drywall contractor can recommend the best type of drywall fire resistance for your project.

Q: Can I get an estimate on drywall repair over the phone?
A: Yes, you can probably get an estimate over the phone. However, you will more than likely be given a minimum charge which may not be accurate. Every job is unique and the only way to get a true estimate is for the professional drywall contractor to see your drywall project area and measure it.

Q: Should I use sheetrock or drywall?
A: Actually, sheetrock and drywall are the same thing. They may also go by the names of gypsum board or wallboard. They are all used for drywall projects and they are made of the same material.

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