Expert Advice On Improving Your Home

11 Best Foundation Companies in San Francisco, CA

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Written By Bradford Cuthrell

Last Updated May 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 frequent, dry soil and dry foundations can combine to increase your risk of foundation issues.

To help, we've compiled a list of top foundation service providers in your area. Keep reading to find top-rated foundation repair companies in San Francisco, California.

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Top 11 Best Foundation Companies in San Francisco

Jim Gardner Construction Inc

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

Good customer service

Helps educate customers

Transparent pricing

Free quotes

Services Offered

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

Mares & Dow Construction & Skylights Inc.

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

Punctual service

Good customer service

Transparent pricing

Helps educate customers

Services Offered

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

De Build Group

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

Good customer service

Helps educate customers

Transparent pricing

Punctual service

Free quotes

Services Offered

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

Bay Area Home Inspections

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

Good customer service

Helps educate customers

Transparent pricing

Services Offered

Waterproofing
Mold remediation
Retaining walls
Repair
Concrete
Inspection

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

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

LEET Construction Company Oakland

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

Transparent pricing

Free quotes

Helps educate customers

Good customer service

Services Offered

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

West Coast Premier Construction

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

Transparent pricing

Good customer service

Punctual service

Services Offered

Repair
Grading and leveling
Concrete
Inspection
Waterproofing
Retaining walls
Masonry

The Golden City Foundation Repair Co

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

Free quotes

Transparent pricing

Good customer service

Helps educate customers

Services Offered

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

NBC Construction & Engineering Incc

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

Transparent pricing

Good customer service

Helps educate customers

Free quotes

Services Offered

Repair
Sidewalks
Retaining walls
Concrete
French drains
Waterproofing
Grading and leveling

Montclair Construction

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

Good customer service

Free quotes

Helps educate customers

Transparent pricing

Services Offered

Concrete
Repair
Retaining walls
Grading and leveling

E F Gomez Cement Contractor Inc

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1350 Underwood Ave, San Francisco, CA 94124 (415) 822-4130 efgomez.com

Punctual service

Good customer service

Transparent pricing

Helps educate customers

Free quotes

Services Offered

Concrete
Sidewalks
Retaining walls
Repair
Driveways
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 company 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 reliable local foundation provider with significant experience in successfully fixing foundations. Technicians should have up-to-date knowledge of current repair methods and materials. Contact the company to ask how long the business has served your community.

Reputation

Spend time checking online reviews, browsing the Better Business Bureau, and asking for local references. This will help confirm that the company consistently delivers good workmanship and professionalism. Take note of complaints about poor service or faulty repairs.

Licensing and Insurance

Make sure any company you hire has the right credentials, bonds, and coverage for liability and workers' compensation. General contractors in California are required to be licensed by the Contractors State License Board in order to work on projects valued over $500. To apply for a license, an individual needs to have at least four years of relevant work experience in the last ten years (or be represented by someone who does), must pass both a business and law 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 work with concrete.

Warranties

Pick a company that offers long transferable warranties for a minimum of 10 years and, if possible, lifetime guarantees to fully back its work. 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

When examining potential foundation repair companies, make sure to ask specific questions such as:

  • What guarantees do you provide? Reliable companies usually provide labor and materials warranties for at least 10 years.
  • Can you provide a complete written cost estimate and project scope? Getting quotes in writing helps shield you from unexpected expenses.
  • What options do you have for financing? Many providers offer payment plans for larger foundation projects.
  • What repairs do you recommend for my situation, and why? Your contractor may provide options such as carbon fiber, wall anchors, and steel piers. By asking, you can get an idea of what solutions a company offers and compare between providers.
  • 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 vague answers may be attempting to bill you for unnecessary work.
  • Realistically, how long will the repairs take to complete? Look for companies that provide reasonable estimates.

Thoroughly evaluating foundation repair companies will help you select the right one for you. Providers that can thoroughly answer these questions will likely offer long-lasting, high-quality repairs. Swiftly fixing foundation issues helps prevent future structural damage.

Frequently Asked Questions About Foundation Repair in San Francisco, CA

There are several signs that your foundation needs repairs. These might include:

  • Visible crumbling or cracking of your foundation
  • Uneven ground-level floors
  • Buckling, bowing, or cracked walls
  • Window frames or door frames that are skewed or tight
  • Cracks in your basement floor
  • Cracks in your driveway

On average, San Francisco homeowners spend roughly $4,029 on foundation repair. The amount you'll spend on foundation repair is based on several factors. Things like the extent of the damage, the size of your home, and the type of repair needed will all factor in. The fastest way to learn how much a job may cost is to talk to a local foundation repair company and schedule a free inspection and estimate.

Types of foundation repair include leak repair, crack repair, stabilization, underpinning, and waterproofing.

Leak repair and crack repair involve a technician coming to your home, performing an inspection, and using various measures to remedy leaks or cracks. The cost of these procedures will vary greatly depending on the size and cause of the problem.

Stabilization helps to fix bowing walls by inserting carbon fiber or steel strips. The cost will depend on the material chosen and the number of strips required. The cost of underpinning also varies. This process, sometimes referred to as leveling or piering, involves leveling your foundation by underpinning it with concrete piers; the cost will be based on how many piers are needed.

If you're interested in waterproofing your foundation or basement, we recommend talking to a waterproofing specialist. This process might include indoor waterproofing, outdoor waterproofing, or both.

If you're constructing a new house, have a soil report completed. A soil report will contain information regarding how well your soil can support a foundation, and can give you a heads-up about any 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 alert you to any issues that need attention, and give you advice on avoiding future problems.

You also want to make sure that the moisture around your foundation is at an appropriate level. The weather in San Francisco tends to be very dry, which means that at times you may need to water your soil and foundation. Also, be on the lookout for leaky pipes or gutters, so you can get them repaired promptly.

Your foundation repair professional should acquire the needed permits. You can ask the company to provide a detailed explanation of the steps in its process and to see the permits and paperwork it has acquired to ensure everything is properly authorized per San Francisco regulations.

Some indicators that your foundation needs waterproofing include discoloration or odors, white powder or spots on your walls, uneven floors, hairline cracks, basement flooding, or signs of mildew, fungus, or mold. Your contractor can inform you whether you need interior or exterior waterproofing.

Interior waterproofing can involve the installation of sump pumps and drains or the use of sealants and tends to be less expensive than exterior waterproofing. Exterior waterproofing often involves measures like applying physical barriers to crawl spaces and basements, installing exterior drains, or making landscape changes.

Small hairline cracks might seem easy to handle on your own, but in most cases, you should consult a professional before beginning any kind of foundation work. Although you may not want to pay someone for work you feel like you can handle yourself, foundation repair mistakes can cost you much more in the future.

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