56/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,938 Google reviews, the most in Alum Rock.
- 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 Alum Rock, CA (2026)
82 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Alum Rock: Attic Pros, CR Score 56/100; 4.8★ from 1,938 Google reviews; open 24/7.
- 8
Best for emergencies (open 24/7): Roof Doctors Alameda County, posts 24/7 hours; ranked #8 of 82.
- 12
Most-reviewed: Roof Doctors Contra Costa County, 188 Google reviews at 4.8★, the most of 82 ranked after Attic Pros; ranked #12.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
82 Alum Rock foundation repair companies are ranked here by CR Score, from ten published factors. 7 are open 24/7, 39 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.8★ across 82 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 Alum Rock at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Attic Pros | 56 | 4.8★ (1,938) | Oakland, 32 mi away | 24/7 | Overall |
| 2 | EM Energy & Air | 55 | 4.9★ (101) | Campbell, 5 mi away | Sat · Sun · Evenings | — |
| 3 | Eastman Roofing & Waterproofing, Inc. | 54 | 4.9★ (172) | San Jose, 6 mi away | — | — |
| 4 | Q7 Roofing & Waterproofing Inc. | 54 | 4.7★ (18) | San Jose, 4 mi away | Sat · Sun | — |
| 5 | Palo Alto Foundation & Concrete Contractors | 53 | 4.8★ (51) | Palo Alto, 18 mi away | Sat · Sun · Evenings | — |
| 6 | Platinum Roofing And Retro-Fit | 53 | 5.0★ (45) | Milpitas, 5 mi away | Sat · Sun · Evenings | — |
| 7 | Waterproofing Associates | 53 | 4.6★ (22) | Santa Clara, 7 mi away | Sat · Sun | — |
| 8 | Roof Doctors Alameda County | 53 | 5.0★ (87) | Alameda, 25 mi away | 24/7 | Emergencies |
| 9 | Groundworks | 53 | 4.6★ (162) | Sunnyvale, 10 mi away | Sat · Sun · Evenings | — |
| 10 | Cube Construction Inc | 52 | 5.0★ (35) | Campbell, 8 mi away | Sat · Sun · Evenings | — |
The 82 best foundation repair companies in Alum Rock, 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 Campbell, 5 mi away
55/100CR ScoreRanked #2 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, 6 mi away
54/100CR ScoreRanked #3 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 San Jose, 4 mi away
54/100CR ScoreRanked #4 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 Palo Alto, 18 mi away
53/100CR ScoreRanked #5 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 Milpitas, 5 mi away
53/100CR ScoreRanked #6 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 Santa Clara, 7 mi away
53/100CR ScoreRanked #7 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, 25 mi away
53/100CR ScoreRanked #8 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
#9 Groundworks
Based in Sunnyvale, 10 mi away
53/100CR ScoreRanked #9 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
52/100CR ScoreRanked #10 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 San Mateo, 29 mi away
52/100CR ScoreRanked #11 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 Alamo, 38 mi away
51/100CR ScoreRanked #12 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, 25 mi away
51/100CR ScoreRanked #13 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 Manteca, 36 mi away
51/100CR ScoreRanked #14 because of its Google rating and review volume: 5.0★ from 80 Google reviews.
- 5.0★ from 80 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Fremont, 12 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
#16 Trio Roofers
Based in San Jose, 8 mi away
51/100CR ScoreRanked #16 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, 9 mi away
51/100CR ScoreRanked #17 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 San Jose, 5 mi away
50/100CR ScoreRanked #18 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 Jose, 4 mi away
50/100CR ScoreRanked #19 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
Based in Santa Clara, 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 “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 Jose, 4 mi away
50/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.4★ from 25 Google reviews, listed on Google as “Roofing contractor”.
- 4.4★ from 25 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1720 Smith Ave, San Jose, CA 95112
Based in San Jose, 4 mi away
50/100CR ScoreRanked #22 because of its Google rating and trade focus: 3.9★ from 24 Google reviews, listed on Google as “Window installation service”.
- 3.9★ from 24 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–2 PM · Sun 9 AM–3 PM
- Address
- 1897 Concourse Dr, San Jose, CA 95131
#23 Allied Roofing
Based in Campbell, 6 mi away
50/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat–Sun 8 AM–5 PM
Based in San Jose, 9 mi away
50/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 8 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 1659 Branham Ln suite f-255, San Jose, CA 95118
Based in San Jose, 10 mi away
49/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.8★ from 26 Google reviews, listed on Google as “Painter”.
- 4.8★ from 26 Google reviews
- Hours
- Mon–Sat 7:30 AM–5 PM · Sun closed
- Address
- 661 Mary Evelyn Dr, San Jose, CA 95123
How much do foundation repair companies cost in Alum Rock?
National price ranges in USD, not adjusted for Alum Rock. 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 Alum Rock foundation repair companies
We scored 82 Alum Rock 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 Alum Rock 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 Alum Rock: frequently asked questions
Who is the best foundation repair company in Alum Rock?
By CR Score, the highest-ranked foundation repair company in Alum Rock, CA is Attic Pros with a CR Score of 56/100. It has 4.8★ from 1,938 Google reviews. It is open 24/7. EM Energy & Air (#2) and Eastman Roofing & Waterproofing, Inc. (#3) follow. We ranked 82 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Alum Rock?
ContractorsRanked ranks 82 foundation repair companies serving Alum Rock, CA. Counts are as of October 2026.
Which foundation repair companies in Alum Rock are open 24/7?
7 ranked foundation repair companies in Alum Rock post 24/7 hours. The highest-ranked are Attic Pros (#1), Roof Doctors Alameda County (#8) and Roof Doctors Contra Costa County (#12). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Alum Rock work on weekends?
39 of 82 ranked foundation repair companies post Saturday hours and 29 post Sunday hours. The highest-ranked open Saturdays are Attic Pros (#1), EM Energy & Air (#2) and Q7 Roofing & Waterproofing Inc. (#4). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Alum Rock?
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 Alum Rock. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Alum Rock foundation repair companies have?
The median Google rating among 82 rated foundation repair companies in Alum Rock is 4.8★, with a median of 16 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 Alum Rock count in this ranking?
Yes, if they are within 40 mi of the Alum Rock 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 Alum Rock
- October 2026: CR Scores recalculated for 82 foundation repair companies serving Alum Rock.
More foundation repair companies and Alum Rock pages
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