11 Best Foundation Companies in Mill Valley, CA

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Last Updated: February 25, 2025

Repairing your foundation can take a lot of time and money. However, neglecting foundation repairs can lead to significant and costly issues. Homeowners in Mill Valley may wonder if they'll be able to stay in their house while repairs are being done, and how long the repairs might take.

To help, we've compiled a guide to top foundation service providers in your area. Keep reading to find top-rated foundation repair companies in Mill Valley, California.

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.
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 Mill Valley

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

Our Rating

User Rating

2333 Courage Dr STE C, Fairfield, CA 94533 (707) 949-9911 groundworks.com

Free quotes

Good customer service

Services Offered

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

Mares & Dow Construction & Skylights Inc.

Mares & Dow Construction & Skylights Inc. Logo

Our Rating

User Rating

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

Transparent pricing

Helps educate customers

Good customer service

Punctual service

Free quotes

Services Offered

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

Jim Gardner Construction Inc

Jim Gardner Construction Inc Logo

Our Rating

User Rating

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

Helps educate customers

Good customer service

Services Offered

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

De Build Group

De Build Group Logo

Our Rating

User Rating

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

Transparent pricing

Good customer service

Free quotes

Helps educate customers

Punctual service

Services Offered

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

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

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

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

Helps educate customers

Free quotes

Good customer service

Services Offered

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

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

Punctual service

Good customer service

Services Offered

Retaining walls
Concrete
Repair
Masonry
Inspection
Waterproofing
Grading and leveling

Clean CrawlSpace Inc

Clean CrawlSpace Inc Logo

Our Rating

User Rating

747 E Brokaw Rd, San Jose, CA 95112 (408) 920-7130 cleancrawlspace.com

Free quotes

Punctual service

Good customer service

Services Offered

Crawl space encapsulation
Mold remediation
Inspection
Sump pumps
Retaining walls
Repair
Sealing
Waterproofing

The Golden City Foundation Repair Co

The Golden City Foundation Repair Co Logo

Our Rating

User Rating

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

Transparent pricing

Helps educate customers

Good customer service

Free quotes

Services Offered

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

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

Helps educate customers

Free quotes

Transparent pricing

Punctual service

Services Offered

French drains
Retaining walls
Repair
Concrete

Rsl Structural Inc.

Rsl Structural Inc. Logo

Our Rating

User Rating

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

Helps educate customers

Services Offered

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

Working with a qualified foundation repair provider is important for properly evaluating the damage and making the right repairs. We suggest focusing on these main factors.

Experience

Choose a well-established local provider with a long track record of experience successfully handling all types of foundation repairs. These companies have specialized expertise with the latest methods and materials. Ask how long a company has served homes in your area.

Reputation

Spend time checking online reviews, browsing the Better Business Bureau, and requesting local references. This will help confirm that the company consistently delivers good workmanship and professionalism. Take note of 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. In California, general contractors are required to be licensed by the Contractors State License Board before working on projects valued at $500 or more. To be eligible 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 law and business and a trade exam, and must be bonded. If an individual or business has employees, workers' compensation insurance is also required. There may be additional requirements for contractors to do certain concrete work.

Warranties

Look for a provider that offers lengthy transferable warranties for a minimum of a decade, preferably lifetime guarantees, to back its foundation repairs. This demonstrates that the company stands behind its work and safeguards you if issues come up in the future.

Questions To Ask Foundation Repair Companies

As part of your research into foundation repair providers, get detailed answers to questions such as:

  • What repairs would you recommend for this situation, and why? Your contractor may provide options such as carbon fiber, steel piers, and wall anchors. Asking allows you to compare suggested solutions between companies.
  • How long will the repairs realistically take to complete? Look for providers that provide reasonable estimates.
  • What guarantees do you provide? Reputable providers usually provide labor and materials warranties of at least 10 years.
  • What financing options do you offer? Many providers offer payment plans for larger foundation projects.
  • What are some likely causes of the problem based on your inspection? Look for clear explanations and solutions in the answer. Companies that provide unclear answers may be trying to bill you for extra work.
  • Can you provide a project scope and cost estimate in writing? Make sure to get quotes in writing to protect yourself from unexpected expenses.

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

Frequently Asked Questions About Foundation Repair in Mill Valley, CA

There are several signs that your foundation is in need of repair. These might include:

  • Visible crumbling or cracks in your foundation
  • Uneven ground-level floors
  • Cracked, buckling, or bowing walls
  • Door or window frames that are skewed or tight
  • Cracks in your basement floor
  • Cracks in your driveway

On average, Mill Valley homeowners spend roughly $2,883 on foundation repair. The cost of foundation repair will vary greatly depending on several factors. Things like the size of your home, the extent of the damage, and the type of repair needed will all play a part. The best way to find out how much a job might cost is to speak with a local foundation repair expert and schedule a free inspection and estimate.

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

Crack repair and leak repair are exactly as they sound: your foundation repair expert will perform an inspection and complete any repairs necessary to remedy cracks or leaks. Costs will depend on the size and cause of the issue.

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

Finally, waterproofing is an overarching term for a category of repairs intended to stop water from getting into your foundation. This can include interior waterproofing, exterior waterproofing, or both, and the price can vary widely. We recommend contacting a waterproofing specialist if you think your foundation needs waterproofing.

If you're building a new house, have a soil report completed. This report contains information regarding how well your soil can support a foundation, and can provide you with a heads-up about any potential future issues. If your concerns are about an existing home, a few hundred dollars will cover an inspection and report by a structural engineer. They can alert you to any issues that could use some attention, and advise you on avoiding future problems.

Also ensure that the moisture around your foundation is appropriate. Don't let the soil around your Mill Valley home get too dry or too wet; at different times, you might find yourself having to reroute your gutters or water your foundation. Also, be on the lookout for leaky gutters or pipes and repair them quickly.

Your foundation repair professional should be the one to get the permits. You can request that the company 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 Mill Valley regulations.

Foundation repairs undertaken by a reputable company should last a long time. Extensive repairs, like basement waterproofing, can be very involved and expensive but do a lot in terms of reducing the risk of future issues.

Generally, foundation repair projects will take from one to several weeks. This range is wide because the timeline will vary greatly depending on things like the type of repair needed and the size of your house. You should consult with your Mill Valley foundation repair professional for a more accurate timeline for your specific project.

Other Mill Valley, CA Home Services

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