60/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,938 Google reviews, the most in Castro Valley.
- 4.8★ from 1,938 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 718 Douglas Ave, Oakland, CA 94603
Best Foundation Repair Companies in Castro Valley, CA (2026)
129 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Castro Valley: Attic Pros, CR Score 60/100; 4.8★ from 1,938 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Roof Doctors Alameda County, posts 24/7 hours; ranked #2 of 129.
- 11
Most-reviewed: Groundworks, 575 Google reviews at 4.8★, the most of 129 ranked after Attic Pros; ranked #11.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
129 Castro Valley foundation repair companies are ranked here by CR Score, from ten published factors. 11 are open 24/7, 63 open Saturdays and 40 open Sundays, based on posted hours. The median Google rating is 4.8★ across 129 rated businesses.
Top 10 foundation repair companies in Castro Valley at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 60 | 4.8★ (1,938) | Oakland, 6 mi away | 24/7 | Overall |
| 2 | Roof Doctors Alameda County | 56 | 5.0★ (87) | Alameda, 3 mi away | 24/7 | Emergencies |
| 3 | Roof Doctors Contra Costa County | 55 | 4.8★ (188) | Alamo, 15 mi away | 24/7 | — |
| 4 | Golden Bay Foundation Builders | 54 | 4.9★ (62) | Alamo, 8 mi away | Sat | — |
| 5 | ELM Roofing Contractors | 54 | 4.9★ (153) | San Mateo, 15 mi away | Sat · Sun | — |
| 6 | Palo Alto Foundation & Concrete Contractors | 53 | 4.8★ (51) | Palo Alto, 19 mi away | Sat · Sun · Evenings | — |
| 7 | Albion Plumbing Rooter Inc - Plumber in Alameda, CA | 53 | 4.8★ (17) | San Leandro, 6 mi away | 24/7 | — |
| 8 | QXO (Waterproofing) | 53 | 4.7★ (10) | Oakland, 7 mi away | — | — |
| 9 | ROOFWORX Inc. – Licensed Roofing Contractor in San Francisco | 52 | 4.9★ (98) | San Francisco, 17 mi away | 24/7 | — |
| 10 | Century Roof and Solar | 52 | 4.8★ (83) | Hayward, 4 mi away | Sat | — |
The 129 best foundation repair companies in Castro 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.
Based in Alameda, 3 mi away
56/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 87 Google reviews.
- 5.0★ from 87 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alamo, 15 mi away
55/100CR ScoreRanked #3 because of its Google rating and review volume: 4.8★ from 188 Google reviews.
- 4.8★ from 188 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Alamo, 8 mi away
54/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “Concrete contractor”.
- 4.9★ from 62 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun closed
Based in San Mateo, 15 mi away
54/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 153 Google reviews.
- 4.9★ from 153 Google reviews
- Hours
- Mon–Sun 9 AM–6 PM
- Address
- 1900 S Norfolk St #394, San Mateo, CA 94403
Based in Palo Alto, 19 mi away
53/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “Concrete contractor”.
- 4.8★ from 51 Google reviews
- Hours
- Mon–Fri 7 AM–8 PM · Sat 6:30 AM–7 PM · Sun 7 AM–8 PM
- Address
- 260 Sheridan Ave, Palo Alto, CA 94306
Based in San Leandro, 6 mi away
53/100CR ScoreRanked #7 because of its Google rating and availability: 4.8★ from 17 Google reviews, open 24/7.
- 4.8★ from 17 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 466 Whitney St, San Leandro, CA 94577
Based in Oakland, 7 mi away
53/100CR ScoreRanked #8 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
Based in San Francisco, 17 mi away
52/100CR ScoreRanked #9 because of its Google rating and review volume: 4.9★ from 98 Google reviews.
- 4.9★ from 98 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1485 Bayshore Blvd 182 suite 418, San Francisco, CA 94124
Based in Hayward, 4 mi away
52/100CR ScoreRanked #10 because of its Google rating and review volume: 4.8★ from 83 Google reviews.
- 4.8★ from 83 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 8 AM–1 PM · Sun closed
- Address
- 23135 Saklan Rd, Hayward, CA 94545
#11 Groundworks
Based in Fairfield, 37 mi away
52/100CR ScoreRanked #11 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
#12 Geico Builders
Based in Oakland, 13 mi away
52/100CR ScoreRanked #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
#13 EM Energy & Air
Based in Campbell, 23 mi away
52/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 101 Google reviews.
- 4.9★ from 101 Google reviews
- Hours
- Mon–Sun 8 AM–7 PM
Based in Dublin, 22 mi away
52/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 33 Google reviews, open 24/7.
- 5.0★ from 33 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Pleasant Hill, 17 mi away
52/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.7★ from 48 Google reviews, listed on Google as “Concrete contractor”.
- 4.7★ from 48 Google reviews
- Hours
- Mon–Thu 5 AM–9:30 PM · Fri 5 AM–4:30 PM · Sat closed · Sun 5 AM–9:30 PM
- Address
- 3478 Buskirk Ave, Pleasant Hill, CA 94523
#16 Groundworks
Based in Sunnyvale, 21 mi away
51/100CR ScoreRanked #16 because of its Google rating and review volume: 4.6★ from 162 Google reviews.
- 4.6★ from 162 Google reviews
- Hours
- Mon–Fri 4 AM–8 PM · Sat 5 AM–8 PM · Sun 7 AM–8 PM
- Address
- 1161 N Fair Oaks Ave, Sunnyvale, CA 94089
Based in San Mateo, 15 mi away
51/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 47 Google reviews.
- 4.9★ from 47 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
- Address
- 1103 E 16th Ave, San Mateo, CA 94402
Based in Walnut Creek, 15 mi away
51/100CR ScoreRanked #18 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 3 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1990 N California Blvd 8th Floor #1270, Walnut Creek, CA 94596
Based in Berkeley, 16 mi away
51/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.6★ from 10 Google reviews, listed on Google as “Roofing contractor”.
- 4.6★ from 10 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
Based in Santa Clara, 23 mi away
51/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.6★ from 22 Google reviews, listed on Google as “Roofing contractor”.
- 4.6★ from 22 Google reviews
- Hours
- Mon–Sun 9 AM–6 PM
- Address
- 1295 Norman Ave, Santa Clara, CA 95054
Based in San Jose, 27 mi away
51/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 172 Google reviews, listed on Google as “Roofing contractor”.
- 4.9★ from 172 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1418 Douglas St, San Jose, CA 95126
Based in Oakland, 12 mi away
51/100CR ScoreRanked #22 because of its Google rating and review volume: 4.8★ from 68 Google reviews.
- 4.8★ from 68 Google reviews
- Hours
- Mon–Fri 5 AM–9:30 PM · Sat closed · Sun 5 AM–9:30 PM
- Address
- 330 2nd St, Oakland, CA 94607
Based in Fremont, 15 mi away
51/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.0★ from 8 Google reviews, listed on Google as “Waterproofing service”.
- 4.0★ from 8 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
Based in San Mateo, 16 mi away
51/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 225 Google reviews.
- 4.9★ from 225 Google reviews
- Hours
- Mon–Fri 7:30 AM–4 PM · Sat–Sun closed
- Address
- 180 South Blvd, San Mateo, CA 94402
Based in Milpitas, 22 mi away
51/100CR ScoreRanked #25 because of its Google rating and review volume: 5.0★ from 45 Google reviews.
- 5.0★ from 45 Google reviews
- Hours
- Mon–Sat 8 AM–7 PM · Sun 8 AM–5 PM
- Address
- 1605 S Main St #108, Milpitas, CA 95035
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 129 ranked foundation repair companies here; the rest are on their profiles.
Also serving Castro 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.
| Business | Google rating | Distance |
|---|---|---|
| A&J Quality General Construction Services | 5.0★ (2) | 22 mi |
| AAA Roofing and Waterproofing, LLC. | 5.0★ (2) | 15 mi |
| Cal Cade Construction | 5.0★ (2) | 18 mi |
| D L C CONCRETE | 5.0★ (2) | 2 mi |
| Elite Roofing & Waterproofing | 3.0★ (2) | 13 mi |
| Handyman in Hayward | 5.0★ (6) | In Castro Valley |
| Hayward Concrete And Masonry | 5.0★ (2) | In Castro Valley |
| Heldy Andrade Painting Inc. | 5.0★ (2) | 15 mi |
| KH Waterproofing And Restoration | 5.0★ (2) | 15 mi |
| Lone Mountain Homes Inc | 5.0★ (2) | 21 mi |
| Long's Concrete | 3.5★ (2) | In Castro Valley |
| Mt Diablo Flooring Systems Inc | 5.0★ (2) | 25 mi |
| Palter Construction and Restoration.Inc | 5.0★ (1) | In Castro Valley |
| Panda Heating & Cooling | 3.5★ (2) | 6 mi |
| Soodo Construction | 5.0★ (2) | 14 mi |
| The Restoration & Waterproofing Co., Inc. | 5.0★ (2) | 21 mi |
| UFcastro painting and waterproofing | 5.0★ (2) | 21 mi |
| Windsor Waterproofing | 5.0★ (2) | 22 mi |
| Wise Roofing Solutions of Concord | 4.0★ (2) | 20 mi |
| ZI BUILDER INC | 5.0★ (2) | In Castro Valley |
How much do foundation repair companies cost in Castro Valley?
National price ranges in USD, not adjusted for Castro Valley. 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 Castro Valley foundation repair companies
We scored 129 Castro 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.
| Factor | Weight | Computed from | In Castro Valley 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 Castro Valley: frequently asked questions
Who is the best foundation repair company in Castro Valley?
By CR Score, the highest-ranked foundation repair company in Castro Valley, CA is Attic Pros with a CR Score of 60/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. Roof Doctors Alameda County (#2) and Roof Doctors Contra Costa County (#3) follow. We ranked 129 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Castro Valley?
ContractorsRanked ranks 129 foundation repair companies serving Castro Valley, CA. 1 of them is based in Castro Valley; 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 Castro Valley are open 24/7?
11 ranked foundation repair companies in Castro Valley post 24/7 hours. The highest-ranked are Attic Pros (#1), Roof Doctors Alameda County (#2) and Roof Doctors Contra Costa County (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Castro Valley work on weekends?
63 of 129 ranked foundation repair companies post Saturday hours and 40 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Roof Doctors Alameda County (#2) and Roof Doctors Contra Costa County (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Castro 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 Castro Valley. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Castro Valley foundation repair companies have?
The median Google rating among 129 rated foundation repair companies in Castro Valley is 4.8★, with a median of 14 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 Castro Valley count in this ranking?
Yes, if they are within 40 mi of the Castro 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 Castro Valley
- October 2026: CR Scores recalculated for 129 foundation repair companies serving Castro Valley.
More foundation repair companies and Castro Valley pages
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Other trades in Castro Valley
- Roofers in Castro Valley772 ranked
- Plumbers in Castro Valley821 ranked
- Electricians in Castro Valley592 ranked
- HVAC contractors in Castro Valley673 ranked
- General contractors in Castro Valley1182 ranked
- Painters in Castro Valley209 ranked
- Landscapers in Castro Valley158 ranked
- Handymen in Castro Valley107 ranked
- Kitchen remodelers in Castro Valley632 ranked
- Bathroom remodelers in Castro Valley584 ranked
- Flooring contractors in Castro Valley382 ranked
- Tile installers in Castro Valley61 ranked
- Drywall contractors in Castro Valley27 ranked
- Concrete contractors in Castro Valley308 ranked
- Fence contractors in Castro Valley145 ranked
- Deck builders in Castro Valley172 ranked
- Siding contractors in Castro Valley100 ranked
- Window installers in Castro Valley319 ranked
- Gutter installers in Castro Valley209 ranked
- Insulation contractors in Castro Valley138 ranked
- Solar installers in Castro Valley303 ranked
- Garage door repair companies in Castro Valley291 ranked
- Tree services in Castro Valley287 ranked
- Masonry contractors in Castro Valley148 ranked
- Water damage restoration companies in Castro Valley405 ranked
- Home builders in Castro Valley497 ranked
- Demolition contractors in Castro Valley110 ranked
- All contractors in Castro Valley