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Best Foundation Repair Companies in Mill Valley, CA (2026)

109 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Mill Valley: Attic Pros, CR Score 58/100; 4.8★ from 1,938 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Gotham Home Services, posts 24/7 hours; ranked #2 of 109.

  3. 6

    Most-reviewed: Groundworks, 575 Google reviews at 4.8★, the most of 109 ranked after Attic Pros; ranked #6.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

109 Mill Valley foundation repair companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 59 open Saturdays and 32 open Sundays, based on posted hours. The median Google rating is 4.8★ across 109 rated businesses.

Top 10 foundation repair companies in Mill Valley at a glance

Top 10 foundation repair companies in Mill Valley at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Attic Pros584.8★ (1,938)Oakland, 23 mi away24/7Overall
2Gotham Home Services545.0★ (33)Dublin, 7 mi away24/7Emergencies
3Roof Doctors Marin County534.6★ (40)Fairfax, 6 mi away24/7—
4ROOFWORX Inc. – Licensed Roofing Contractor in San Francisco534.9★ (98)San Francisco, 15 mi away24/7—
5Roof Doctors Contra Costa County534.8★ (188)Alamo, 30 mi away24/7—
6Groundworks524.8★ (575)Fairfield, 34 mi awaySat · Sun · EveningsMost reviews
7RTR Roofing of San Francisco524.7★ (19)San Francisco, 10 mi away24/7—
8Roof Doctors Alameda County525.0★ (87)Alameda, 32 mi away24/7—
9ELM Roofing Contractors524.9★ (153)San Mateo, 28 mi awaySat · Sun—
10Pablo Restorations Roofing525.0★ (29)Richmond, 11 mi awaySat · Sun—

The 109 best foundation repair companies in Mill Valley, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Mill Valley

    #1 Attic Pros

    Based in Oakland, 23 mi away

    58/100CR Score

    Ranked #1 because of its Google rating and review volume: 4.8★ from 1,938 Google reviews, the most in Mill Valley.

    • 4.8★ from 1,938 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    718 Douglas Ave, Oakland, CA 94603
    View profile for Attic Pros(800) 543-0382

  6. #6 Groundworks

    Based in Fairfield, 34 mi away

    52/100CR Score

    Ranked #6 because of its Google rating and review volume: 4.8★ from 575 Google reviews.

    • 4.8★ from 575 Google reviews
    Hours
    Mon–Fri 4 AM–8 PM · Sat 5 AM–8 PM · Sun 7 AM–8 PM
    Address
    2333 Courage Dr STE C, Fairfield, CA 94533
    View profile for Groundworks(707) 988-5400

  12. #12 Geico Builders

    Based in Oakland, 17 mi away

    51/100CR Score

    Ranked #12 because of its Google rating and review volume: 5.0★ from 87 Google reviews.

    • 5.0★ from 87 Google reviews
    Hours
    Mon–Fri 9 AM–7 PM · Sat closed · Sun 9 AM–6 PM
    Address
    1901 Harrison St Ste 1100, Oakland, CA 94612
    View profile for Geico Builders(510) 800-6202

  16. #16 QXO (Waterproofing)

    Based in Oakland, 22 mi away

    50/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.7★ from 10 Google reviews, listed on Google as “Waterproofing service”.

    • 4.7★ from 10 Google reviews
    Hours
    Mon–Fri 6 AM–3 PM · Sat–Sun closed
    Address
    465 Roland Way, Oakland, CA 94621
    View profile for QXO (Waterproofing)(510) 636-2020

  24. #24 Gatana

    Based in Pacifica, 18 mi away

    50/100CR Score

    Ranked #24 because of its Google rating and review volume: 5.0★ from 134 Google reviews.

    • 5.0★ from 134 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    1091 Palmetto Ave, Pacifica, CA 94044
    View profile for Gatana(415) 756-0233

  25. #25 SF Pro Roofing

    Based in Daly City, 7 mi away

    50/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 20 Google reviews, listed on Google as “Roofing contractor”.

    • 5.0★ from 20 Google reviews
    Hours
    Mon–Sat 8 AM–5 PM · Sun closed
    View profile for SF Pro Roofing(415) 571-6604

Foundation repair companies ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 109 ranked foundation repair companies here; the rest are on their profiles.

foundation repair companies in Mill Valley, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26AGH Commercial Inc.504.9★ (47)27 mi
27The Golden City Foundation Repair Co504.2★ (9)11 mi
28DE Group Roofing and Waterproofing Corporation505.0★ (3)26 mi
29HouseSavers & DeckMasters494.9★ (41)4 mi
30Bay Area Excavating and Grading Inc495.0★ (5)7 mi
31Andrew Mark Construction495.0★ (7)11 mi
32Modern Summit Roofing Contractor495.0★ (47)33 mi
33Cartelli Painting & Waterproofing Company494.8★ (22)15 mi
34Solar Harbor Innovations494.7★ (17)20 mi
35Peace of Mind Structural494.9★ (225)27 mi
36Under The House.495.0★ (62)39 mi
37Alameda Roofing Solutions495.0★ (11)19 mi
38Century Roof and Solar484.8★ (83)29 mi
39Martin's Bay Area Construction484.8★ (23)16 mi
40Sure Roofing & Waterproofing484.8★ (14)14 mi
41ER HOME IMPROVEMENTS & GENERAL CONSTRUCTION INC,485.0★ (14)13 mi
42Pro-Tech Waterproofing Inc484.3★ (3)12 mi
43Northern Pacific Roofing, Inc.484.7★ (30)5 mi
44I Construction & Structural Inc484.8★ (30)8 mi
45Urban Waterproofing Inc484.0★ (8)7 mi
46Division Seven483.0★ (4)24 mi
47Royalty Roofing & Waterproof484.6★ (10)36 mi
48Universe Construction484.4★ (19)14 mi
49Omni Painting and Waterproofing Inc.484.2★ (26)16 mi
50Gateway Roofing & Waterproofing483.7★ (3)15 mi

Also serving Mill Valley

20 more foundation repair companies within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked foundation repair companies serving Mill Valley
BusinessGoogle ratingDistance
A&J Quality General Construction Services5.0★ (2)10 mi
Axiom#7521275.0★ (1)In Mill Valley
Cal Cade Construction5.0★ (2)12 mi
D L C CONCRETE5.0★ (2)30 mi
Edri Construction5.0★ (2)In Mill Valley
Elite Roofing & Waterproofing3.0★ (2)16 mi
Golden Gate Termite & Construction5.0★ (2)12 mi
Jeff Hicks ConstructionIn Mill Valley
KH Waterproofing And Restoration5.0★ (2)15 mi
Lone Mountain Homes Inc5.0★ (2)10 mi
Mill Valley Builders5.0★ (1)In Mill Valley
Panda Heating & Cooling3.5★ (2)23 mi
Soodo Construction5.0★ (2)16 mi
TC Construction5.0★ (3)In Mill Valley
The Restoration & Waterproofing Co., Inc.5.0★ (2)10 mi
Tim Walsh Builders, Inc.3.0★ (2)In Mill Valley
TotalCare ConstructionIn Mill Valley
UFcastro painting and waterproofing5.0★ (2)15 mi
Windsor Waterproofing5.0★ (2)7 mi
Wise Roofing Solutions of Concord4.0★ (2)33 mi

How much do foundation repair companies cost in Mill Valley?

National price ranges in USD, not adjusted for Mill Valley. Each row names its basis and the month we checked it.

How much do foundation repair companies cost in Mill Valley?
JobLowTypicalHighBasisChecked
Foundation repair$2,225$5,174$8,133Per project: typical range of customer-reported repairs. US national rangeOctober 2026

How we ranked Mill Valley foundation repair companies

We scored 109 Mill Valley foundation repair companies on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Mill Valley data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

Foundation repair companies in Mill Valley: frequently asked questions

Who is the best foundation repair company in Mill Valley?

By CR Score, the highest-ranked foundation repair company in Mill Valley, CA is Attic Pros with a CR Score of 58/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. Gotham Home Services (#2) and Roof Doctors Marin County (#3) follow. We ranked 109 foundation repair companies on ten factors, last updated October 22, 2026.

How many foundation repair companies are there in Mill Valley?

ContractorsRanked ranks 109 foundation repair companies serving Mill Valley, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.

Which foundation repair companies in Mill Valley are open 24/7?

12 ranked foundation repair companies in Mill Valley post 24/7 hours. The highest-ranked are Attic Pros (#1), Gotham Home Services (#2) and Roof Doctors Marin County (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which foundation repair companies in Mill Valley work on weekends?

59 of 109 ranked foundation repair companies post Saturday hours and 32 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Gotham Home Services (#2) and Roof Doctors Marin County (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does foundation repair cost in Mill Valley?

Foundation repair typically costs $2,225 to $8,133, with $5,174 typical (Per project: typical range of customer-reported repairs. US national range). This is a national range, not adjusted for Mill Valley. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Mill Valley foundation repair companies have?

The median Google rating among 109 rated foundation repair companies in Mill Valley is 4.8★, with a median of 13 reviews. Attic Pros has the most, 1,938 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank foundation repair companies?

Each foundation repair company gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do foundation repair companies outside Mill Valley count in this ranking?

Yes, if they are within 40 mi of the Mill Valley city center, our service radius for foundation repair companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Update log for Mill Valley

  1. October 2026: CR Scores recalculated for 109 foundation repair companies serving Mill Valley.

More foundation repair companies and Mill Valley pages

Other trades in Mill Valley