11 Best Foundation Companies in Napa, CA

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Last Updated: February 25, 2025

While foundation repair is usually expensive and requires significant time, neglecting foundation problems can lead to serious, expensive consequences in the future. Homeowners in Napa might be worried about whether they'll be able to remain in their home while repairs are underway, and how long repairs might take.

To help you find reliable foundation services, we researched the best, highly-trusted foundation repair companies near you. Keep reading to explore our top recommendations for the best foundation repair companies in Napa, California.

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Top Pick
4.7/5
  • Offers free in-person and virtual evaluations
  • 87+ years of industry experience
  • All repairs backed by a lifetime transferable warranty

Top 11 Best Foundation Companies in Napa

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Groundworks

Groundworks Logo

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2333 Courage Dr STE C, Fairfield, CA 94533 (707) 760-7339 groundworks.com

Good customer service

Free quotes

Services Offered

Concrete
French drains
Inspection
Masonry
Waterproofing
Repair
Retaining walls
Crawl space encapsulation
Grading and leveling

Mares & Dow Construction & Skylights Inc.

Mares & Dow Construction & Skylights Inc. Logo

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1155 Ellis St #4, San Francisco, CA 94109 (415) 447-6136 maresdow.com

Punctual service

Good customer service

Transparent pricing

Free quotes

Helps educate customers

Services Offered

Grading and leveling
French drains
Mold remediation
Crawl space encapsulation
Waterproofing
Concrete
Retaining walls
Repair
Driveways

Jim Gardner Construction Inc

Jim Gardner Construction Inc Logo

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User Rating

3871 Piedmont Ave #13, Oakland, CA 94611 (510) 655-3409 jimgardnerconstruction.com

Good customer service

Helps educate customers

Services Offered

French drains
Grading and leveling
Mold remediation
Repair
Inspection
Retaining walls
Masonry
Sealing
Crawl space encapsulation
Driveways
Sump pumps

De Build Group

De Build Group Logo

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1930 12th Ave, Oakland, CA 94606 (855) 333-2845 dbuildgroup.com

Punctual service

Helps educate customers

Good customer service

Transparent pricing

Free quotes

Services Offered

Sealing
Repair
Driveways
Concrete
Grading and leveling
Sidewalks
French drains
Retaining walls

Shaz Construction & Design

Shaz Construction & Design Logo

Our Rating

User Rating

40 Bellam Blvd Unit # 10484, San Rafael, CA 94912 (415) 528-1424 shazconstruction.com

Punctual service

Services Offered

Mold remediation
Crawl space encapsulation
Grading and leveling
Sealing
Inspection
Driveways
Repair
Concrete
Retaining walls
Waterproofing
Masonry

LEET Construction Company Oakland

LEET Construction Company Oakland Logo

Our Rating

User Rating

1901 Harrison St Ste 1100, Oakland, CA 94612 (415) 881-0841 leetconstruction.com

Transparent pricing

Good customer service

Free quotes

Helps educate customers

Services Offered

Repair
Crawl space encapsulation
Concrete
Sidewalks
Inspection
French drains
Retaining walls
Driveways

West Coast Premier Construction

West Coast Premier Construction Logo

Our Rating

User Rating

1940 Union St #1, Oakland, CA 94607 (510) 271-0950 wcpc-inc.com

Transparent pricing

Good customer service

Punctual service

Services Offered

Inspection
Repair
Masonry
Waterproofing
Retaining walls
Concrete
Grading and leveling

The Golden City Foundation Repair Co

The Golden City Foundation Repair Co Logo

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50 Post St #24, San Francisco, CA 94104 (415) 943-6199 foundationrepairsanfrancisco.net

Helps educate customers

Good customer service

Free quotes

Transparent pricing

Services Offered

Crawl space encapsulation
Grading and leveling
Retaining walls
Driveways
Concrete
Repair
Inspection

Feraru & Associates Building and Design Inc

Feraru & Associates Building and Design Inc Logo

Our Rating

User Rating

1569 Solano Ave #249, Berkeley, CA 94707 (510) 228-7366 feraru.us

Transparent pricing

Free quotes

Helps educate customers

Punctual service

Services Offered

French drains
Retaining walls
Repair
Concrete

Bolt Down the Bay Area

Bolt Down the Bay Area Logo

Our Rating

User Rating

1424 Cunningham Rd, Sebastopol, CA 95472 (866) 664-2658 boltdownthebayarea.com

Free quotes

Transparent pricing

Services Offered

Concrete
Crawl space encapsulation
Inspection
Grading and leveling
Retaining walls
Repair

Mafileo Concrete

Mafileo Concrete Logo

Our Rating

User Rating

130 La Casa Via, Walnut Creek, CA 94598 (925) 492-7244 concrete-walnutcreek.com

Helps educate customers

Transparent pricing

Good customer service

Free quotes

Services Offered

Sidewalks
Concrete
Driveways
Repair
Retaining walls
Grading and leveling
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on foundation companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Foundation Repair Company

Hiring a qualified foundation repair contractor ensures you have someone who will inspect the damage thoroughly and make appropriate fixes. It's important to conduct research beforehand, focusing on the factors listed here.

Experience

Look for a reputable local foundation company with many years of successfully fixing foundations. Technicians should have extensive experience with current repair materials and methods. Contact the company to ask how long the business has served your community.

Reputation

Looking through online reviews, checking the Better Business Bureau, and requesting local references helps confirm that a company routinely provides good workmanship and great customer service. Pay attention if you see many complaints about faulty repairs or poor service.

Licensing and Insurance

Only hire companies that are properly licensed, bonded, and have both workers compensation and liability insurance. General contractors in California must be licensed by the Contractors State License Board before working on projects valued at $500 or more. To obtain a license, an individual needs to have at least four years of related work experience in the last ten years (or be represented by someone who does), must pass both a law and business and a trade exam, and must be bonded. If an individual or business has employees, workers' compensation insurance is also required. Contractors may have to meet additional requirements to do certain concrete work.

Warranties

Pick a company that offers long transferable warranties for a minimum of 10 years and, if possible, lifetime guarantees to fully back its services. This displays confidence that the company's work is top-notch and provides protection if problems come up later.

Questions To Ask Foundation Repair Companies

When examining potential foundation repair companies, make sure to ask in-depth questions such as:

  • What type of guarantees do you offer? Trustworthy providers will offer warranties of minimum 10 years on labor and materials.
  • Can you provide a project scope and cost estimate in writing? Make sure to get quotes in writing to shield yourself from unexpected costs.
  • Realistically, how long will the repairs take to complete? Look for providers that provide reasonable estimates.
  • What financing options do you have? Providers often offer payment plans for larger foundation repairs.
  • What repair method would you recommend for this specific situation and why? Your provider may offer options such as steel piers, carbon fiber, and wall anchors. Asking allows you to compare suggested solutions between companies.
  • What do you see as the likely cause of my issues based on your inspection? Look for clear explanations and solutions in the answer. Companies that provide unclear answers may be attempting to bill you for extra work.

Taking time to carefully evaluate foundation repair contractors will help homeowners discover the right company for their needs. A company that can thoroughly answer these questions is likely one that delivers high-quality, long-lasting repairs. Promptly fixing foundation issues helps prevent further structural damage.

Frequently Asked Questions About Foundation Repair in Napa, CA

If your foundation is in need of repair, it may manifest in a number of ways. Outside, you may see a crumbling or cracking foundation or cracks in your driveway. Your ground level might have cracked or uneven floors. You might notice doors or windows that are sticking in their frames, or frames that are skewed. You could also notice cracking, buckling, or bowing walls.

On average, Napa homeowners spend roughly $2,883 on foundation repair. The cost of foundation repair depends on a number of factors. Things like the type of repair needed, the size of your home, and the extent of the damage will all help determine the cost. The fastest way to learn how much a job is going to cost is to talk to a local foundation repair company and schedule a free inspection and estimate.

The primary types of foundation repair are crack repair, leak repair, underpinning, stabilization, and waterproofing.

Crack repair and leak repair are what they sound like: your foundation contractor will perform an inspection and take necessary measures to remedy cracks or leaks. The price will vary based on the size and cause of the problem.

Underpinning, also called piering or leveling, is the process of leveling your foundation by underpinning it with large concrete piers. The cost will depend on how many piers are used. The price of stabilization is also variable. This process involves fixing bowing walls by reinforcing them with carbon fiber or steel strips, and the cost will depend on what material is used and how many strips are used.

Lastly, waterproofing is an overarching term for a number of jobs designed to prevent water from getting into your foundation. This can involve exterior waterproofing, interior waterproofing, or both, and costs can vary widely. We recommend contacting a waterproofing specialist if you think your foundation needs waterproofing.

When constructing a new house, make sure that a soil report is completed. A soil report will contain information about how well the soil on a given piece of land can support a foundation, and can provide you with a heads-up about any potential future issues. If your concerns are about an existing house, a few hundred dollars will cover an inspection and report by a structural engineer. They can alert you to any things that could use some attention, and give you advice on avoiding future problems.

It's also important that the moisture around your foundation is at an appropriate level, particularly when the weather gets hot. Don't let the soil around your Napa home get too dry or too wet; at different times, you might find yourself having to reroute your gutters or water your foundation. You should also stay vigilant for leaky gutters or pipes and repair them quickly.

Your foundation repair provider should acquire the needed permits. You can request that the company provide a detailed explanation of its process and to see the permits and paperwork it has acquired to make sure everything is properly authorized per Napa regulations.

You might not love the idea of spending money to hire someone for what seems like a small foundation repair. However, it's always good to consult a professional. This helps you avoid potential future issues that could be even more expensive. It may be possible to repair small hairline cracks on your own, but it's always a smart idea to get an expert opinion first.

In some cases, foundation repairs can be considered capital improvements if they fit the criteria of an improvement that will add to your house's overall value, prolong its life, or adapt it to new uses. In some cases, making capital improvements helps you qualify for tax breaks. (Talk to your California tax professional for more information.) Even without these tax breaks, foundation repairs will, in most cases, positively affect your home's value.

Other Napa, CA Home Services

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