57/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 208 Google reviews.
- 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 Saint Helena, CA (2026)
38 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Saint Helena: Roof Doctors Sonoma County, CR Score 57/100; 4.9★ from 208 Google reviews; open 24/7.
- 3
Best for emergencies (open 24/7): Sustainable Living Builders, Inc, posts 24/7 hours; ranked #3 of 38.
- 2
Most-reviewed: Groundworks, 575 Google reviews at 4.8★, the most of 38 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Saint Helena foundation repair companies are ranked here by CR Score, from ten published factors. 3 are open 24/7, 16 open Saturdays and 8 open Sundays, based on posted hours. The median Google rating is 4.8★ across 38 rated businesses.
Top 10 foundation repair companies in Saint Helena at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Roof Doctors Sonoma County | 57 | 4.9★ (208) | Windsor, 19 mi away | 24/7 | Overall |
| 2 | Groundworks | 55 | 4.8★ (575) | Fairfield, 28 mi away | Sat · Sun · Evenings | Most reviews |
| 3 | Sustainable Living Builders, Inc | 55 | 4.9★ (84) | Sebastopol, 19 mi away | 24/7 | Emergencies |
| 4 | Under The House. | 53 | 5.0★ (62) | Santa Rosa, 16 mi away | Sat · Sun · Evenings | — |
| 5 | Modern Summit Roofing Contractor | 53 | 5.0★ (47) | Petaluma, 13 mi away | Sat · Sun · Evenings | — |
| 6 | Rich’s Mobile Home Service | 51 | 4.5★ (27) | Santa Rosa, 12 mi away | Sat · Sun · Evenings | — |
| 7 | Aleman Concrete | 51 | 5.0★ (27) | Santa Rosa, 11 mi away | Sat · Evenings | — |
| 8 | Crandall Roofing, Inc. | 51 | 4.9★ (117) | Santa Rosa, 15 mi away | — | — |
| 9 | Xalos Foundation Support | 50 | 5.0★ (27) | Windsor, 20 mi away | — | — |
| 10 | Roof Doctors Marin County | 50 | 4.6★ (40) | Fairfax, 35 mi away | 24/7 | — |
The 38 best foundation repair companies in Saint Helena, 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.
#2 Groundworks
Based in Fairfield, 28 mi away
55/100CR ScoreRanked #2 because of its Google rating and review volume: 4.8★ from 575 Google reviews, the most in Saint Helena.
- 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
Based in Sebastopol, 19 mi away
55/100CR ScoreRanked #3 because of its Google rating and review volume: 4.9★ from 84 Google reviews.
- 4.9★ from 84 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4399 Gravenstein Hwy S, Sebastopol, CA 95472
Based in Santa Rosa, 16 mi away
53/100CR ScoreRanked #4 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 Petaluma, 13 mi away
53/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 47 Google reviews.
- 5.0★ from 47 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
Based in Santa Rosa, 12 mi away
51/100CR ScoreRanked #6 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, 11 mi away
51/100CR ScoreRanked #7 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, 15 mi away
51/100CR ScoreRanked #8 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 Windsor, 20 mi away
50/100CR ScoreRanked #9 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 Fairfax, 35 mi away
50/100CR ScoreRanked #10 because of its Google rating and review volume: 4.6★ from 40 Google reviews.
- 4.6★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Santa Rosa, 15 mi away
50/100CR ScoreRanked #11 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 Cotati, 15 mi away
50/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Construction company”.
- 5.0★ from 19 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 8 AM–5 PM · Sun closed
#13 Division Seven
Based in Petaluma, 21 mi away
49/100CR ScoreRanked #13 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
Based in Benicia, 18 mi away
49/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.1★ from 31 Google reviews, listed on Google as “Concrete contractor”.
- 4.1★ from 31 Google reviews
- Hours
- Mon–Thu 8 AM–5 PM · Fri 8 AM–4:30 PM · Sat–Sun closed
Based in Richmond, 39 mi away
48/100CR ScoreRanked #15 because of its Google rating and review volume: 5.0★ from 29 Google reviews.
- 5.0★ from 29 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 7 AM–3 PM · Sun 9 AM–3 PM
- Address
- 2124 Hellings Ave, Richmond, CA 94801
Based in Novato, 30 mi away
48/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.2★ from 5 Google reviews, listed on Google as “Waterproofing service”.
- 4.2★ from 5 Google reviews
- Hours
- Mon–Fri 8:30 AM–4:30 PM · Sat–Sun closed
- Address
- 67 Galli Dr Suite C, Novato, CA 94949
Based in Vacaville, 29 mi away
48/100CR ScoreRanked #17 because of its Google rating and review volume: 4.7★ from 107 Google reviews.
- 4.7★ from 107 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 859 Cotting Ct Suite A, Vacaville, CA 95688
Based in Santa Rosa, 16 mi away
48/100CR ScoreRanked #18 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
Based in Benicia, 36 mi away
47/100CR ScoreRanked #19 because of its Google rating and review volume: 5.0★ from 23 Google reviews.
- 5.0★ from 23 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 10 AM–5 PM · Sun closed
- Address
- 226 W J St, Benicia, CA 94510
Based in Santa Rosa, 15 mi away
46/100CR ScoreRanked #20 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
#21 The Roofer
Based in Rohnert Park, 11 mi away
45/100CR ScoreRanked #21 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 San Rafael, 37 mi away
45/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 710 C St 202, Suite 202, San Rafael, CA 94901
Based in Florin, 40 mi away
45/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 5 Google reviews
- Hours
- Mon–Thu 8 AM–5:30 PM · Fri–Sat 8 AM–3:33 PM · Sun closed
Based in San Rafael, 38 mi away
45/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 41 Google reviews.
- 4.9★ from 41 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
- Address
- 1201 Andersen Dr STE O, San Rafael, CA 94901
Based in San Rafael, 34 mi away
45/100CR ScoreRanked #25 because of its Google rating and review volume: 4.8★ from 30 Google reviews.
- 4.8★ from 30 Google reviews
- Hours
- Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
- Address
- 69 Paul Dr., San Rafael, CA 94903
All 38 foundation repair companies
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Cortlandt Roofing | 45 | 4.1★ (9) | 15 mi |
| 27 | Able Roofing Company | 45 | 4.6★ (7) | 30 mi |
| 28 | Urban Waterproofing Inc | 44 | 4.0★ (8) | 35 mi |
| 29 | Northern Pacific Roofing, Inc. | 44 | 4.7★ (30) | 37 mi |
| 30 | Pro-Tech Waterproofing Inc | 44 | 4.3★ (3) | 40 mi |
| 31 | Brendan Roofing and Waterproofing | 44 | 4.0★ (6) | 39 mi |
| 32 | ARC Restoration & Waterproofing, Inc. | 43 | 3.9★ (7) | 39 mi |
| 33 | Mason Plumbing | 43 | 4.9★ (10) | 34 mi |
| 34 | Tarantino's Yardscapes | 43 | 3.6★ (5) | 24 mi |
| 35 | High End Development Inc | 42 | 3.7★ (22) | 35 mi |
| 36 | Piscatelli Roofing | 42 | 4.5★ (10) | 36 mi |
| 37 | NC Foliage & Landscaping, Inc. | 42 | 3.3★ (3) | 27 mi |
| 38 | Perma Level | 41 | 5.0★ (5) | 38 mi |
Also serving Saint Helena
18 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 |
|---|---|---|
| A.S.A. Drilling and Foundation | 19 mi | |
| Acecal Waterproofing & Decking | 1.0★ (1) | 18 mi |
| Adams Roofing | 28 mi | |
| Advance Flooring Products | 35 mi | |
| Certified Specialists, Inc. | 5.0★ (2) | 15 mi |
| Dan Fix Landscape Construction Co. | 34 mi | |
| DWC Waterproofing | 5.0★ (1) | 34 mi |
| Everest Roofing | 39 mi | |
| Foundation Repair of CA | 5.0★ (1) | 14 mi |
| GD & Son Builders | 31 mi | |
| Larios and Sons Concrete | 5.0★ (1) | 34 mi |
| Manzanita Building Group, Inc. | 5.0★ (13) | In Saint Helena |
| Modern Surfaces Remodeling LLC | 5.0★ (1) | 40 mi |
| Nor-Cal Painting | 37 mi | |
| North Coast Waterproofing Inc | 15 mi | |
| Solar Foundation Solutions, Inc | 34 mi | |
| Thoroughbred WaterProofing | 5.0★ (1) | 13 mi |
| Zarate concrete | 29 mi |
How much do foundation repair companies cost in Saint Helena?
National price ranges in USD, not adjusted for Saint Helena. 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 Saint Helena foundation repair companies
We scored 38 Saint Helena 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 Saint Helena 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 Saint Helena: frequently asked questions
Who is the best foundation repair company in Saint Helena?
By CR Score, the highest-ranked foundation repair company in Saint Helena, 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. Groundworks (#2) and Sustainable Living Builders, Inc (#3) follow. We ranked 38 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Saint Helena?
ContractorsRanked ranks 38 foundation repair companies serving Saint Helena, CA. Another 18 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Saint Helena are open 24/7?
3 ranked foundation repair companies in Saint Helena post 24/7 hours. The highest-ranked are Roof Doctors Sonoma County (#1), Sustainable Living Builders, Inc (#3) and Roof Doctors Marin County (#10). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Saint Helena work on weekends?
16 of 38 ranked foundation repair companies post Saturday hours and 8 post Sunday hours. The highest-ranked open Saturdays are Roof Doctors Sonoma County (#1), Groundworks (#2) and Sustainable Living Builders, Inc (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Saint Helena?
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 Saint Helena. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Saint Helena foundation repair companies have?
The median Google rating among 38 rated foundation repair companies in Saint Helena is 4.8★, with a median of 21 reviews. Groundworks has the most, 575 reviews, and ranks #2. 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 Saint Helena count in this ranking?
Yes, if they are within 40 mi of the Saint Helena 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 Saint Helena
- October 2026: CR Scores recalculated for 38 foundation repair companies serving Saint Helena.
- October 2026: 1 duplicate listing merged.
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