57/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,938 Google reviews, the most in Sunnyvale.
- 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 Sunnyvale, CA (2026)
104 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Sunnyvale: Attic Pros, CR Score 57/100; 4.8★ from 1,938 Google reviews; open 24/7.
- 7
Best for emergencies (open 24/7): Roof Doctors Alameda County, posts 24/7 hours; ranked #7 of 104.
- 21
Most-reviewed: Peace of Mind Structural, 225 Google reviews at 4.9★, the most of 104 ranked after Attic Pros; ranked #21.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
104 Sunnyvale foundation repair companies are ranked here by CR Score, from ten published factors. 9 are open 24/7, 50 open Saturdays and 33 open Sundays, based on posted hours. The median Google rating is 4.8★ across 104 rated businesses.
Most of this list also appears on the Foundation repair companies in San Jose ranking. See Foundation repair companies in San Jose
Top 10 foundation repair companies in Sunnyvale at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 57 | 4.8★ (1,938) | Oakland, 27 mi away | 24/7 | Overall |
| 2 | Palo Alto Foundation & Concrete Contractors | 55 | 4.8★ (51) | Palo Alto, 7 mi away | Sat · Sun · Evenings | — |
| 3 | Groundworks | 55 | 4.6★ (162) | Sunnyvale | Sat · Sun · Evenings | — |
| 4 | EM Energy & Air | 54 | 4.9★ (101) | Campbell, 8 mi away | Sat · Sun · Evenings | — |
| 5 | Eastman Roofing & Waterproofing, Inc. | 54 | 4.9★ (172) | San Jose, 8 mi away | — | — |
| 6 | Waterproofing Associates | 54 | 4.6★ (22) | Santa Clara, 5 mi away | Sat · Sun | — |
| 7 | Roof Doctors Alameda County | 54 | 5.0★ (87) | Alameda, 22 mi away | 24/7 | Emergencies |
| 8 | Q7 Roofing & Waterproofing Inc. | 53 | 4.7★ (18) | San Jose, 7 mi away | Sat · Sun | — |
| 9 | ELM Roofing Contractors | 53 | 4.9★ (153) | San Mateo, 19 mi away | Sat · Sun | — |
| 10 | Platinum Roofing And Retro-Fit | 53 | 5.0★ (45) | Milpitas, 8 mi away | Sat · Sun · Evenings | — |
The 104 best foundation repair companies in Sunnyvale, 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 Palo Alto, 7 mi away
55/100CR ScoreRanked #2 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
#3 Groundworks
Based in Sunnyvale
55/100CR ScoreRanked #3 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 Campbell, 8 mi away
54/100CR ScoreRanked #4 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 San Jose, 8 mi away
54/100CR ScoreRanked #5 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 Santa Clara, 5 mi away
54/100CR ScoreRanked #6 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 Alameda, 22 mi away
54/100CR ScoreRanked #7 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 San Jose, 7 mi away
53/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.7★ from 18 Google reviews, listed on Google as “Roofing contractor”.
- 4.7★ from 18 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 1430 Koll Cir #107, San Jose, CA 95112
Based in San Mateo, 19 mi away
53/100CR ScoreRanked #9 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 Milpitas, 8 mi away
53/100CR ScoreRanked #10 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
Based in Alamo, 18 mi away
52/100CR ScoreRanked #11 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 Campbell, 8 mi away
52/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 35 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 307 Orchard City Dr, Campbell, CA 95008
Based in Alamo, 37 mi away
52/100CR ScoreRanked #13 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 Santa Clara, 3 mi away
52/100CR ScoreRanked #14 because of its Google rating and review volume: 4.8★ from 63 Google reviews.
- 4.8★ from 63 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–4 PM · Sun closed
- Address
- 3350 Scott Blvd, Santa Clara, CA 95054
Based in Fremont, 10 mi away
51/100CR ScoreRanked #15 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, 20 mi away
51/100CR ScoreRanked #16 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
#17 Trio Roofers
Based in San Jose, 9 mi away
51/100CR ScoreRanked #17 because of its Google rating and review volume: 4.8★ from 53 Google reviews.
- 4.8★ from 53 Google reviews
- Hours
- Mon–Thu 8 AM–7 PM · Fri 8 AM–5 PM · Sat closed · Sun 8 AM–7 PM
- Address
- 1830 Rochelle Dr, San Jose, CA 95124
Based in Santa Clara, 4 mi away
51/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Contractor”.
- 4.7★ from 23 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
- Address
- 3052 Scott Blvd, Santa Clara, CA 95054
Based in San Francisco, 32 mi away
50/100CR ScoreRanked #19 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 San Jose, 7 mi away
50/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 23 Google reviews, listed on Google as “Painter”.
- 4.7★ from 23 Google reviews
- Hours
- Mon–Thu 7 AM–4 PM · Fri 9 AM–4 PM · Sat–Sun closed
- Address
- 707 W Hedding St, San Jose, CA 95110
Based in San Mateo, 20 mi away
50/100CR ScoreRanked #21 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 Hayward, 20 mi away
50/100CR ScoreRanked #22 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
#23 Top Roofing
Based in Cupertino, 5 mi away
50/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 42 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 42 Google reviews
- Hours
- Mon–Thu 8 AM–6 PM · Fri 8 AM–4 PM · Sat–Sun closed
Based in San Jose, 8 mi away
50/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 24 Google reviews, listed on Google as “Kitchen remodeler”.
- 4.8★ from 24 Google reviews
- Hours
- Mon–Thu 9 AM–9 PM · Fri 9 AM–5 PM · Sat closed · Sun 9 AM–9 PM
- Address
- 115 N 4th St #102, San Jose, CA 95112
#25 Attic Pros
Based in Redwood City, 16 mi away
50/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 303 Twin Dolphin Dr, Redwood City, CA 94065
How much do foundation repair companies cost in Sunnyvale?
National price ranges in USD, not adjusted for Sunnyvale. 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 Sunnyvale foundation repair companies
We scored 104 Sunnyvale 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 Sunnyvale 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 Sunnyvale: frequently asked questions
Who is the best foundation repair company in Sunnyvale?
By CR Score, the highest-ranked foundation repair company in Sunnyvale, 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. Palo Alto Foundation & Concrete Contractors (#2) and Groundworks (#3) follow. We ranked 104 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Sunnyvale?
ContractorsRanked ranks 104 foundation repair companies serving Sunnyvale, CA. 1 of them is based in Sunnyvale; the rest serve it from nearby towns. Counts are as of October 2026.
Which foundation repair companies in Sunnyvale are open 24/7?
9 ranked foundation repair companies in Sunnyvale post 24/7 hours. The highest-ranked are Attic Pros (#1), Roof Doctors Alameda County (#7) and Roof Doctors Contra Costa County (#13). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Sunnyvale work on weekends?
50 of 104 ranked foundation repair companies post Saturday hours and 33 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), Palo Alto Foundation & Concrete Contractors (#2) and Groundworks (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Sunnyvale?
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 Sunnyvale. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Sunnyvale foundation repair companies have?
The median Google rating among 104 rated foundation repair companies in Sunnyvale is 4.8★, with a median of 15 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 Sunnyvale count in this ranking?
Yes, if they are within 40 mi of the Sunnyvale 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 Sunnyvale
- October 2026: CR Scores recalculated for 104 foundation repair companies serving Sunnyvale.
More foundation repair companies and Sunnyvale pages
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