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Best Foundation Repair Companies in Rohnert Park, CA (2026)

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

The short answer

  1. 1

    Best overall in Rohnert Park: Roof Doctors Sonoma County, CR Score 57/100; 4.9★ from 208 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Sustainable Living Builders, Inc, posts 24/7 hours; ranked #2 of 43.

  3. 5

    Most-reviewed: Groundworks, 575 Google reviews at 4.8★, the most of 43 ranked; ranked #5.

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

43 Rohnert Park foundation repair companies are ranked here by CR Score, from ten published factors. 4 are open 24/7, 23 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 4.8★ across 43 rated businesses.

Top 10 foundation repair companies in Rohnert Park at a glance

Top 10 foundation repair companies in Rohnert Park at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Roof Doctors Sonoma County574.9★ (208)Windsor, 15 mi away24/7Overall
2Sustainable Living Builders, Inc574.9★ (84)Sebastopol, 4 mi away24/7Emergencies
3Modern Summit Roofing Contractor555.0★ (47)Petaluma, 4 mi awaySat · Sun · Evenings—
4Under The House.555.0★ (62)Santa Rosa, 8 mi awaySat · Sun · Evenings—
5Groundworks544.8★ (575)Fairfield, 35 mi awaySat · Sun · EveningsMost reviews
6Crandall Roofing, Inc.534.9★ (117)Santa Rosa, 4 mi away——
7Rich’s Mobile Home Service524.5★ (27)Santa Rosa, 7 mi awaySat · Sun · Evenings—
8Clean CrawlSpace Inc.525.0★ (57)Santa Rosa, 4 mi away——
9Roof Doctors Marin County524.6★ (40)Fairfax, 26 mi away24/7—
10Concrete Contractor Rohnert Park525.0★ (19)Cotati, 2 mi awaySat · Evenings—

The 43 best foundation repair companies in Rohnert Park, 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.

  5. #5 Groundworks

    Based in Fairfield, 35 mi away

    54/100CR Score

    Ranked #5 because of its Google rating and review volume: 4.8★ from 575 Google reviews, the most in Rohnert Park.

    • 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

  11. #11 Aleman Concrete

    Based in Santa Rosa, 9 mi away

    51/100CR Score

    Ranked #11 because of its Google rating and review volume: 5.0★ from 27 Google reviews.

    • 5.0★ from 27 Google reviews
    Hours
    Mon–Sat 6 AM–6:30 PM · Sun closed
    Address
    5023 Algiers Ave, Santa Rosa, CA 95409
    View profile for Aleman Concrete(707) 775-1497

  12. #12 Division Seven

    Based in Petaluma, 8 mi away

    51/100CR Score

    Ranked #12 because of its Google rating and trade focus: 3.0★ from 4 Google reviews, listed on Google as “Waterproofing service”.

    • 3.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    22 Lakeville St, Petaluma, CA 94952
    View profile for Division Seven(707) 224-9599

  20. #20 The Roofer

    Based in Rohnert Park

    47/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Roofing contractor”.

    • 4.2★ from 5 Google reviews
    Hours
    Mon–Fri 7 AM–6 PM · Sat–Sun closed
    View profile for The Roofer(707) 280-6758

  21. #21 Sonoma Structural

    Based in Santa Rosa, 7 mi away

    47/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “General contractor”.

    • 4.0★ from 4 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat 10 AM–2 PM · Sun closed
    Address
    717 Blair Pl, Santa Rosa, CA 95401
    View profile for Sonoma Structural(707) 623-8680

  24. #24 Cortlandt Roofing

    Based in Santa Rosa, 5 mi away

    47/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.1★ from 9 Google reviews, listed on Google as “Roofing contractor”.

    • 4.1★ from 9 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    2989 Wiljan Ct Suite B, Santa Rosa, CA 95407
    View profile for Cortlandt Roofing(707) 540-0446

All 43 foundation repair companies

#1 to #25 are shown in full above. Here are #26 to #43, in CR Score order; each links to its profile.

foundation repair companies in Rohnert Park, ranks 26 to 43
RankBusinessCR ScoreGoogle ratingDistance
26Triple T Rejuvenation475.0★ (23)35 mi
27SF Pro Roofing465.0★ (20)35 mi
28Cartelli Painting & Waterproofing Company464.8★ (22)39 mi
29Urban Waterproofing Inc464.0★ (8)25 mi
30Northern Pacific Roofing, Inc.464.7★ (30)27 mi
31Farallon Company Enginerring464.4★ (7)34 mi
32Mason Plumbing464.9★ (10)19 mi
33Bay Area Excavating and Grading Inc455.0★ (5)35 mi
34ER HOME IMPROVEMENTS & GENERAL CONSTRUCTION INC,455.0★ (14)38 mi
35Pro-Tech Waterproofing Inc454.3★ (3)34 mi
36Universe Construction454.4★ (19)39 mi
37Brendan Roofing and Waterproofing454.0★ (6)33 mi
38ARC Restoration & Waterproofing, Inc.443.9★ (7)34 mi
39The concrete of god / Concrete Services in Richmond and San Francisco Bay Area, California435.0★ (5)40 mi
40Perma Level435.0★ (5)29 mi
41Carty Perez Construction Inc.434.0★ (5)39 mi
42Tarantino's Yardscapes423.6★ (5)26 mi
43High End Development Inc423.7★ (22)36 mi

Also serving Rohnert Park

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 Rohnert Park
BusinessGoogle ratingDistance
A & C Noma Construction, Inc.3.0★ (2)In Rohnert Park
A&J Quality General Construction Services5.0★ (2)34 mi
Bielefield Construction5.0★ (2)In Rohnert Park
Certified Specialists, Inc.5.0★ (2)4 mi
Crawl Space Specialist5.0★ (4)In Rohnert Park
De Loza Drywall5.0★ (11)In Rohnert Park
E.Valdez Framing INC5.0★ (3)In Rohnert Park
Foundation Repair of CA5.0★ (1)5 mi
Golden Gate Termite & Construction5.0★ (2)38 mi
Iron Horse Builders Inc.In Rohnert Park
J A Mejia Construction5.0★ (1)In Rohnert Park
JAM3 Builders - Concrete Contractor5.0★ (21)In Rohnert Park
Natural Painting Service Inc5.0★ (3)In Rohnert Park
NXT Gen Concrete5.0★ (22)In Rohnert Park
PJC & Associates, Inc.3.9★ (7)In Rohnert Park
Prime Level Construction5.0★ (14)In Rohnert Park
San Carlos Concrete Inc.4.9★ (13)In Rohnert Park
Timberwolf Construction3.7★ (3)In Rohnert Park
United Mechanical, Inc.5.0★ (1)In Rohnert Park
Windsor Waterproofing5.0★ (2)35 mi

How much do foundation repair companies cost in Rohnert Park?

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

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

How we ranked Rohnert Park foundation repair companies

We scored 43 Rohnert Park 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 Rohnert Park 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 Rohnert Park: frequently asked questions

Who is the best foundation repair company in Rohnert Park?

By CR Score, the highest-ranked foundation repair company in Rohnert Park, CA is Roof Doctors Sonoma County with a CR Score of 57/100. It has 4.9★ from 208 Google reviews. It is open 24/7. Sustainable Living Builders, Inc (#2) and Modern Summit Roofing Contractor (#3) follow. We ranked 43 foundation repair companies on ten factors, last updated October 22, 2026.

How many foundation repair companies are there in Rohnert Park?

ContractorsRanked ranks 43 foundation repair companies serving Rohnert Park, CA. 1 of them is based in Rohnert Park; 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 Rohnert Park are open 24/7?

4 ranked foundation repair companies in Rohnert Park post 24/7 hours. The highest-ranked are Roof Doctors Sonoma County (#1), Sustainable Living Builders, Inc (#2) and Roof Doctors Marin County (#9). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which foundation repair companies in Rohnert Park work on weekends?

23 of 43 ranked foundation repair companies post Saturday hours and 11 post Sunday hours. The highest-ranked open Saturdays are Roof Doctors Sonoma County (#1), Sustainable Living Builders, Inc (#2) and Modern Summit Roofing Contractor (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does foundation repair cost in Rohnert Park?

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

What Google rating do Rohnert Park foundation repair companies have?

The median Google rating among 43 rated foundation repair companies in Rohnert Park is 4.8★, with a median of 19 reviews. Groundworks has the most, 575 reviews, and ranks #5. 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 Rohnert Park count in this ranking?

Yes, if they are within 40 mi of the Rohnert Park 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 Rohnert Park

  1. October 2026: CR Scores recalculated for 43 foundation repair companies serving Rohnert Park.
  2. October 2026: 1 duplicate listing merged.

More foundation repair companies and Rohnert Park pages

Other trades in Rohnert Park