55/100CR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 68 Google reviews, the most in Alta Sierra.
- 5.0★ from 68 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
Best Foundation Repair Companies in Alta Sierra, CA (2026)
5 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Alta Sierra: Castle Roofing, CR Score 55/100; 5.0★ from 68 Google reviews; open 7 days a week.
- 2
Most-reviewed: K-9 Custom Roofing Inc., 59 Google reviews at 5.0★, the most of 5 ranked after Castle Roofing; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Alta Sierra foundation repair companies are ranked here by CR Score, from ten published factors. 3 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 5.0★ across 5 rated businesses.
Most of this list also appears on the Foundation repair companies in Oildale ranking. See Foundation repair companies in Oildale
Top 5 foundation repair companies in Alta Sierra at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Castle Roofing | 55 | 5.0★ (68) | Bakersfield, 36 mi away | Sat · Sun · Evenings | Overall |
| 2 | K-9 Custom Roofing Inc. | 55 | 5.0★ (59) | Bakersfield, 34 mi away | Sat · Sun | Most reviews |
| 3 | American River Caulking Inc | 53 | 3.7★ (3) | Alta Sierra | — | — |
| 4 | JP Mobile Home Leveling | 46 | 2.8★ (21) | Bakersfield, 33 mi away | Sat | — |
| 5 | ROOFTOPS USA INC | 45 | 5.0★ (11) | Bakersfield, 38 mi away | — | — |
The 5 best foundation repair companies in Alta Sierra, 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 Bakersfield, 34 mi away
55/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 59 Google reviews.
- 5.0★ from 59 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun 9 AM–5 PM
- Address
- 2705 Weedpatch Hwy, Bakersfield, CA 93307
Based in Alta Sierra
53/100CR ScoreRanked #3 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Waterproofing service”.
- 3.7★ from 3 Google reviews
- Hours
- Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
- Address
- 44 N Canyon Way, Colfax, CA 95713
Based in Bakersfield, 33 mi away
46/100CR ScoreRanked #4 because of its Google rating and review volume: 2.8★ from 21 Google reviews.
- 2.8★ from 21 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 8633 E Brundage Ln, Bakersfield, CA 93307
Based in Bakersfield, 38 mi away
45/100CR ScoreRanked #5 because of its Google rating and review volume: 5.0★ from 11 Google reviews.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Thu 9 AM–3 PM · Fri 7 AM–12 PM · Sat–Sun closed
- Address
- 3807 Patton Way #102, Bakersfield, CA 93308
How much do foundation repair companies cost in Alta Sierra?
National price ranges in USD, not adjusted for Alta Sierra. 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 Alta Sierra foundation repair companies
We scored 5 Alta Sierra 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 Alta Sierra 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 Alta Sierra: frequently asked questions
Who is the best foundation repair company in Alta Sierra?
By CR Score, the highest-ranked foundation repair company in Alta Sierra, CA is Castle Roofing with a CR Score of 55/100. It has 5.0★ from 68 Google reviews. It is open 7 days a week. K-9 Custom Roofing Inc. (#2) and American River Caulking Inc (#3) follow. We ranked 5 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Alta Sierra?
ContractorsRanked ranks 5 foundation repair companies serving Alta Sierra, CA. 1 of them is based in Alta Sierra; the rest serve it from nearby towns. Counts are as of October 2026.
Which foundation repair companies in Alta Sierra work on weekends?
3 of 5 ranked foundation repair companies post Saturday hours and 2 post Sunday hours. The highest-ranked open Saturdays are Castle Roofing (#1), K-9 Custom Roofing Inc. (#2) and JP Mobile Home Leveling (#4). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Alta Sierra?
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 Alta Sierra. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Alta Sierra foundation repair companies have?
The median Google rating among 5 rated foundation repair companies in Alta Sierra is 5.0★, with a median of 21 reviews. Castle Roofing has the most, 68 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 Alta Sierra count in this ranking?
Yes, if they are within 40 mi of the Alta Sierra 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.
Can foundation repair companies pay to rank higher on ContractorsRanked?
No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.
Update log for Alta Sierra
- October 2026: CR Scores recalculated for 5 foundation repair companies serving Alta Sierra.
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