57/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 208 Google reviews, the most in Clearlake.
- 4.9★ from 208 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 822 Joshua Dr, Windsor, CA 95492
Best Foundation Repair Companies in Clearlake, CA (2026)
12 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Clearlake: Roof Doctors Sonoma County, CR Score 57/100; 4.9★ from 208 Google reviews; open 24/7.
- 4
Most-reviewed: Crandall Roofing, Inc., 117 Google reviews at 4.9★, the most of 12 ranked after Roof Doctors Sonoma County; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
12 Clearlake foundation repair companies are ranked here by CR Score, from ten published factors. 1 is open 24/7, 6 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.9★ across 12 rated businesses.
Top 10 foundation repair companies in Clearlake at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roof Doctors Sonoma County | 57 | 4.9★ (208) | Windsor, 31 mi away | 24/7 | Overall |
| 2 | Under The House. | 52 | 5.0★ (62) | Santa Rosa, 36 mi away | Sat · Sun · Evenings | — |
| 3 | Xalos Foundation Support | 50 | 5.0★ (27) | Windsor, 30 mi away | — | — |
| 4 | Crandall Roofing, Inc. | 49 | 4.9★ (117) | Santa Rosa, 40 mi away | — | Most reviews |
| 5 | Rich’s Mobile Home Service | 49 | 4.5★ (27) | Santa Rosa, 37 mi away | Sat · Sun · Evenings | — |
| 6 | Aleman Concrete | 49 | 5.0★ (27) | Santa Rosa, 34 mi away | Sat · Evenings | — |
| 7 | Clean CrawlSpace Inc. | 48 | 5.0★ (57) | Santa Rosa, 39 mi away | — | — |
| 8 | Trino's Concrete Services | 46 | 5.0★ (8) | Santa Rosa, 37 mi away | Sat | — |
| 9 | The Roofer | 45 | 4.2★ (5) | Rohnert Park, 22 mi away | — | — |
| 10 | Tarantino's Yardscapes | 44 | 3.6★ (5) | Larkfield-Wikiup, 22 mi away | — | — |
The 12 best foundation repair companies in Clearlake, 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.
Based in Santa Rosa, 36 mi away
52/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 62 Google reviews.
- 5.0★ from 62 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 1133 Piner Creek Dr, Santa Rosa, CA 95401
Based in Windsor, 30 mi away
50/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 27 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 9472 Wellington Cir, Windsor, CA 95492
Based in Santa Rosa, 40 mi away
49/100CR ScoreRanked #4 because of its Google rating and review volume: 4.9★ from 117 Google reviews.
- 4.9★ from 117 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
- Address
- 183 Oceanic Way, Santa Rosa, CA 95407
Based in Santa Rosa, 37 mi away
49/100CR ScoreRanked #5 because of its Google rating and review volume: 4.5★ from 27 Google reviews.
- 4.5★ from 27 Google reviews
- Hours
- Mon–Sun 9 AM–7 PM
- Address
- 111 Knolls Ln, Santa Rosa, CA 95404
Based in Santa Rosa, 34 mi away
49/100CR ScoreRanked #6 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
Based in Santa Rosa, 39 mi away
48/100CR ScoreRanked #7 because of its Google rating and review volume: 5.0★ from 57 Google reviews.
- 5.0★ from 57 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 3100 Dutton Ave Ste. 142E, Santa Rosa, CA 95407
Based in Santa Rosa, 37 mi away
46/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Sat 6 AM–5 PM · Sun closed
- Address
- 172 Leisure Park Cir, Santa Rosa, CA 95401
#9 The Roofer
Based in Rohnert Park, 22 mi away
45/100CR ScoreRanked #9 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
Based in Larkfield-Wikiup, 22 mi away
44/100CR ScoreRanked #10 because of its Google rating and trade focus: 3.6★ from 5 Google reviews, listed on Google as “Landscaper”.
- 3.6★ from 5 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
Based in Santa Rosa, 36 mi away
44/100CR ScoreRanked #11 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
Based in Santa Rosa, 39 mi away
43/100CR ScoreRanked #12 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
Also serving Clearlake
9 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.
| Business | Google rating | Distance |
|---|---|---|
| Adams Roofing | 39 mi | |
| Certified Specialists, Inc. | 5.0★ (2) | 39 mi |
| Coulter Construction | In Clearlake | |
| Duran Construction | 5.0★ (1) | In Clearlake |
| Everest Roofing | 30 mi | |
| Lake Marine Construction | 3.5★ (2) | In Clearlake |
| Land Escape | 4.9★ (31) | In Clearlake |
| Thoroughbred WaterProofing | 5.0★ (1) | 37 mi |
| TJF Development | 3.7★ (6) | In Clearlake |
How much do foundation repair companies cost in Clearlake?
National price ranges in USD, not adjusted for Clearlake. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Foundation repair | $2,225 | $5,174 | $8,133 | Per project: typical range of customer-reported repairs. US national range | October 2026 |
How we ranked Clearlake foundation repair companies
We scored 12 Clearlake 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.
| Factor | Weight | Computed from | In Clearlake data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |
Foundation repair companies in Clearlake: frequently asked questions
Who is the best foundation repair company in Clearlake?
By CR Score, the highest-ranked foundation repair company in Clearlake, 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. Under The House. (#2) and Xalos Foundation Support (#3) follow. We ranked 12 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Clearlake?
ContractorsRanked ranks 12 foundation repair companies serving Clearlake, CA. Another 9 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Clearlake are open 24/7?
1 ranked foundation repair company in Clearlake posts 24/7 hours. The highest-ranked is Roof Doctors Sonoma County (#1). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Clearlake work on weekends?
6 of 12 ranked foundation repair companies post Saturday hours and 3 post Sunday hours. The highest-ranked open Saturdays are Roof Doctors Sonoma County (#1), Under The House. (#2) and Rich’s Mobile Home Service (#5). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Clearlake?
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 Clearlake. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Clearlake foundation repair companies have?
The median Google rating among 12 rated foundation repair companies in Clearlake is 4.9★, with a median of 27 reviews. Roof Doctors Sonoma County has the most, 208 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 Clearlake count in this ranking?
Yes, if they are within 40 mi of the Clearlake 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 Clearlake
- October 2026: CR Scores recalculated for 12 foundation repair companies serving Clearlake.
- October 2026: 1 duplicate listing merged.
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