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Best Foundation Repair Companies in San Rafael, CA (2026)

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

The short answer

  1. 1

    Best overall in San Rafael: Attic Pros, CR Score 57/100; 4.8★ from 1,938 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Roof Doctors Marin County, posts 24/7 hours; ranked #2 of 105.

  3. 4

    Most-reviewed: Groundworks, 575 Google reviews at 4.8★, the most of 105 ranked after Attic Pros; ranked #4.

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

105 San Rafael foundation repair companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 56 open Saturdays and 31 open Sundays, based on posted hours. The median Google rating is 4.8★ across 105 rated businesses.

Top 10 foundation repair companies in San Rafael at a glance

Top 10 foundation repair companies in San Rafael at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Attic Pros574.8★ (1,938)Oakland, 25 mi away24/7Overall
2Roof Doctors Marin County544.6★ (40)Fairfax, 2 mi away24/7Emergencies
3Gotham Home Services545.0★ (33)Dublin, 9 mi away24/7—
4Groundworks534.8★ (575)Fairfield, 31 mi awaySat · Sun · EveningsMost reviews
5Roof Doctors Contra Costa County534.8★ (188)Alamo, 29 mi away24/7—
6ROOFWORX Inc. – Licensed Roofing Contractor in San Francisco524.9★ (98)San Francisco, 19 mi away24/7—
7Sustainable Living Builders, Inc524.9★ (84)Sebastopol, 30 mi away24/7—
8Pablo Restorations Roofing525.0★ (29)Richmond, 10 mi awaySat · Sun—
9Roof Doctors Alameda County525.0★ (87)Alameda, 34 mi away24/7—
10RTR Roofing of San Francisco514.7★ (19)San Francisco, 14 mi away24/7—

The 105 best foundation repair companies in San Rafael, 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 San Rafael

    #1 Attic Pros

    Based in Oakland, 25 mi away

    57/100CR Score

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

    • 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

  4. #4 Groundworks

    Based in Fairfield, 31 mi away

    53/100CR Score

    Ranked #4 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

  13. #13 Geico Builders

    Based in Oakland, 19 mi away

    51/100CR Score

    Ranked #13 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

  18. #18 QXO (Waterproofing)

    Based in Oakland, 24 mi away

    50/100CR Score

    Ranked #18 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 SF Pro Roofing

    Based in Daly City, 9 mi away

    49/100CR Score

    Ranked #24 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 105 ranked foundation repair companies here; the rest are on their profiles.

foundation repair companies in San Rafael, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Under The House.495.0★ (62)35 mi
27Farallon Company Enginerring494.4★ (7)7 mi
28San Francisco Roof Masters495.0★ (5)17 mi
29Gatana495.0★ (134)23 mi
30Urban Waterproofing Inc494.0★ (8)In San Rafael
31AGH Commercial Inc.494.9★ (47)31 mi
32The Golden City Foundation Repair Co494.2★ (9)15 mi
33Northern Pacific Roofing, Inc.494.7★ (30)In San Rafael
34Bay Area Excavating and Grading Inc495.0★ (5)9 mi
35Cartelli Painting & Waterproofing Company494.8★ (22)15 mi
36Division Seven493.0★ (4)19 mi
37Andrew Mark Construction485.0★ (7)15 mi
38Pro-Tech Waterproofing Inc484.3★ (3)11 mi
39Alameda Roofing Solutions485.0★ (11)21 mi
40ER HOME IMPROVEMENTS & GENERAL CONSTRUCTION INC,485.0★ (14)14 mi
41Peace of Mind Structural484.9★ (225)31 mi
42Solar Harbor Innovations484.7★ (17)24 mi
43Century Roof and Solar484.8★ (83)32 mi
44Martin's Bay Area Construction484.8★ (23)18 mi
45Royalty Roofing & Waterproof484.6★ (10)36 mi
46Triple T Rejuvenation485.0★ (23)21 mi
47Brendan Roofing and Waterproofing484.0★ (6)10 mi
48Sure Roofing & Waterproofing484.8★ (14)19 mi
49Universe Construction484.4★ (19)14 mi
50Omni Painting and Waterproofing Inc.484.2★ (26)17 mi

Also serving San Rafael

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 San Rafael
BusinessGoogle ratingDistance
American Leak Detection of the North Bay & the Peninsula4.6★ (60)In San Rafael
CenterLine Builders Incorporated5.0★ (7)In San Rafael
Cestarollo Construction Inc5.0★ (5)In San Rafael
Clear Design and Build5.0★ (26)In San Rafael
Cook Construction4.0★ (4)In San Rafael
CS Construction CO5.0★ (6)In San Rafael
EAB Construction3.7★ (3)In San Rafael
Ghilotti Bros., Inc.3.4★ (36)In San Rafael
Ghilotti Construction Company3.0★ (4)In San Rafael
Green Bay Remodeling, Inc.4.9★ (45)In San Rafael
Howie Excavating & Grading5.0★ (7)In San Rafael
Marin H2O4.9★ (127)In San Rafael
Millsap Degnan & Associates Inc4.6★ (10)In San Rafael
Plath & Company4.0★ (4)In San Rafael
Ramirez’s Handymen Construction5.0★ (3)In San Rafael
Reliable Home Remodeling & Construction5.0★ (55)In San Rafael
RWR Construction, Inc.4.6★ (30)In San Rafael
Tomas Calel Construction Company5.0★ (4)In San Rafael
Valentine Corporation5.0★ (4)In San Rafael
VONNEGUT THOREAU CONSTRUCTION5.0★ (3)In San Rafael

How much do foundation repair companies cost in San Rafael?

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

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

How we ranked San Rafael foundation repair companies

We scored 105 San Rafael 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 San Rafael 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 San Rafael: frequently asked questions

Who is the best foundation repair company in San Rafael?

By CR Score, the highest-ranked foundation repair company in San Rafael, CA is Attic Pros with a CR Score of 57/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. Roof Doctors Marin County (#2) and Gotham Home Services (#3) follow. We ranked 105 foundation repair companies on ten factors, last updated October 22, 2026.

How many foundation repair companies are there in San Rafael?

ContractorsRanked ranks 105 foundation repair companies serving San Rafael, CA. 5 of them are based in San Rafael; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.

Which foundation repair companies in San Rafael are open 24/7?

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

Which foundation repair companies in San Rafael work on weekends?

56 of 105 ranked foundation repair companies post Saturday hours and 31 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Roof Doctors Marin County (#2) and Gotham Home Services (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does foundation repair cost in San Rafael?

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 San Rafael. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do San Rafael foundation repair companies have?

The median Google rating among 105 rated foundation repair companies in San Rafael 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 San Rafael count in this ranking?

Yes, if they are within 40 mi of the San Rafael 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 San Rafael

  1. October 2026: CR Scores recalculated for 105 foundation repair companies serving San Rafael.

More foundation repair companies and San Rafael pages

Other trades in San Rafael