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11 Best Foundation Companies in San Francisco, CA

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Written By Bradford Cuthrell

Last Updated April 2024

Repairing your foundation requires a substantial time and money investment. However, ignoring foundation problems can lead to major and costly issues. Somewhere like San Francisco, where rain is less common, dry foundations and soil can combine to make foundation issues more likely.

To help, we've put together a list of top foundation service providers in your area. Keep reading to find the best foundation repair companies in San Francisco, California.

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Top 11 Best Foundation Companies in San Francisco

West Coast Premier Construction

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

Punctual service

Transparent pricing

Good customer service

Services Offered

Masonry
Waterproofing
Retaining walls
Inspection
Repair
Grading and leveling
Concrete

Mares & Dow Construction & Skylights Inc.

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

Transparent pricing

Good customer service

Punctual service

Helps educate customers

Services Offered

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

Montclair Construction

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3871 Piedmont Ave, Oakland, CA 94611 (510) 547-2457 montclairconstruction.com

Helps educate customers

Good customer service

Free quotes

Transparent pricing

Services Offered

Concrete
Retaining walls
Grading and leveling
Repair

Rsl Structural Inc.

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674 Easton Ave, San Bruno, CA 94066 (530) 551-7660 rslearthquakebrace.com

Helps educate customers

Transparent pricing

Good customer service

Free quotes

Services Offered

Repair
French drains
Grading and leveling
Sump pumps
Crawl space encapsulation
Retaining walls
Concrete

NBC Construction & Engineering Incc

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850 S Van Ness Ave, San Francisco, CA 94110 (925) 324-2727 nbc-constructionco.com

Good customer service

Helps educate customers

Transparent pricing

Free quotes

Services Offered

Concrete
Grading and leveling
Sidewalks
Waterproofing
French drains
Retaining walls
Repair

Jim Gardner Construction Inc

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

Transparent pricing

Free quotes

Helps educate customers

Good customer service

Services Offered

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

Bay Area Home Inspections

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551 25th Ave, San Francisco, CA 94121 (415) 515-3355 bayareahomeinspections.com

Transparent pricing

Helps educate customers

Good customer service

Services Offered

Repair
Retaining walls
Concrete
Mold remediation
Waterproofing
Inspection

San Francisco Concrete Contractors

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20 Quickstep Ln APT 3, San Francisco, CA 94115 (415) 687-3728 sanfranciscoconcretecontractor.com

Good customer service

Punctual service

Free quotes

Transparent pricing

Helps educate customers

Services Offered

Repair

LEET Construction Company Oakland

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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

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

The Golden City Foundation Repair Co

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

Helps educate customers

Transparent pricing

Good customer service

Free quotes

Services Offered

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

Everest Waterproofing & Restoration

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1270 Missouri St, San Francisco, CA 94107 (415) 282-9800 everestsf.com

Good customer service

Services Offered

Sealing
Grading and leveling
Waterproofing
Retaining walls
Repair
Concrete
Masonry
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

You need a good foundation repair contractor to properly assess issues and make appropriate repairs. Do thorough research and focus on these key factors when looking for the right company.

Experience

Look for a reputable local foundation company with many years of successfully fixing all foundation types. 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

Reading online reviews, checking the Better Business Bureau, and requesting local references helps verify that a company consistently provides quality work and great customer service. Pay attention if you see many complaints about poor service or faulty repairs.

Licensing and Insurance

Make sure any company you hire has the appropriate credentials, bonds, and insurance for liability and workers' compensation. In California, general contractors need to be licensed by the Contractors State License Board before working on projects valued at more than $500. To apply for a license, an individual needs to have at least four years of related work experience in the last decade (or be represented by someone who does), must pass both a law and business and a trade exam, and must be bonded. Individuals or businesses that have employees must also have workers' compensation insurance. There may be additional requirements for contractors to do certain concrete work.

Warranties

Pick a company that offers warranties of 10+ years that you can transfer to a new owner if you sell and, if possible, lifetime guarantees to fully back its services. This displays faith that their repairs will be high-quality and long-lasting and provides protection if problems come up later.

Questions To Ask Foundation Repair Companies

To compare foundation repair providers, you should ask detailed questions such as:

  • What warranties do you provide? Reputable providers generally provide labor and materials warranties that last at least 10 years.
  • Can you provide a cost estimate and project scope in writing? Make sure to get quotes in writing to shield yourself from unexpected costs.
  • What options do you have for financing? Many providers offer payment plans for larger foundation projects.
  • What repairs do you recommend for this situation, and why? Your contractor may provide options such as steel piers, carbon fiber, and wall anchors. Asking allows you to compare suggested solutions between companies.
  • What foundation defects did you identify during inspection that could be causing the issue? The response should have easy-to-understand explanations and solutions. If a provider offers an unclear answer, it may be trying to bill you for extra work.
  • How long will the repairs realistically take? Look for providers that provide reasonable estimates.

Taking the time to review foundation repair companies helps homeowners find the ideal match for their needs. A provider that can answer the questions above is likely one that delivers high-quality, durable repairs. Swiftly tackling foundation problems helps prevent further structural damage.

Frequently Asked Questions About Foundation Repair in San Francisco, CA

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

On average, San Francisco homeowners pay roughly $4,029 for foundation repair, although the actual cost will vary depending on several factors. The easiest way to get an estimate for the cost of your specific project is to request quotes from a few local foundation repair companies. Your total cost will be affected by things like the size of your house and type of repair(s) needed.

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

Crack repair and leak repair are what they sound like: your foundation repair expert will perform an inspection and complete any repairs necessary to remedy cracks or leaks. The price will vary depending on the size and cause of the issue.

Underpinning, also called piering or leveling, is when a contractor levels 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 fixes bowing walls by reinforcing them with steel or carbon fiber strips. The total cost will depend on the material chosen 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 the price can vary greatly. We recommend contacting a waterproofing specialist if you think your foundation needs waterproofing.

If you're constructing a new home, make sure that a soil report is completed. This report contains information about how well the soil on a given piece of land can support a foundation, and can offer you a heads-up about potential future problems. If you have concerns about an existing home, for a few hundred dollars, you can get an inspection and report by a structural engineer. The engineer can point you to any issues that could use some attention, and advise you on avoiding future problems.

You also want to make sure that the moisture around your foundation is appropriate. The weather in San Francisco tends to be very dry, which means that at times you may need to water your soil and foundation. You should also stay vigilant for leaky pipes or gutters and repair them quickly.

A permit is normally required for foundation repair, but obtaining one shouldn't be your responsibility. Your foundation repair provider should put together all the permits and other documents required in San Francisco, and should be able to provide the documents and/or explain the process if asked.

When you need foundation waterproofing, you'll notice signs like discoloration or odors, white powder or spots on your walls, basement flooding, hairline cracks, uneven floors, or signs of mildew, fungus, or mold.

You can opt for interior or exterior waterproofing. Interior waterproofing is often less expensive, and can involve solutions like the use of sealants or the installation of sump pumps or drains. Exterior waterproofing is generally more expensive but more effective. This process can involve things like external drains, landscaping changes, or physical barriers to stop water from getting into basements and crawl spaces.

Small hairline cracks might seem easy to take care of yourself, but in general, you should at least consult a professional before beginning any foundation work. While you may balk at the idea of paying someone for a task you feel you can handle yourself, foundation repair mistakes can cost you much more in the future.

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