78/100CR Score
Ranked #1 because of its Google rating and review volume: 4.3★ from 16 Google reviews, 16 Google reviews.
- 4.3★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1719 W Main St Suite #406, Rapid City, SD 57702
Best Foundation Repair Companies in Rapid Valley, SD (2026)
5 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rapid Valley: Allphase Construction & Roofing, CR Score 78/100; 4.3★ from 16 Google reviews; open 24/7.
- 2
Most-reviewed: Rapid Foundation Repair, 33 Google reviews at 4.3★, the most of 5 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Rapid Valley foundation repair companies are ranked here by CR Score, from 8 published factors. 1 is open 24/7 and 2 open Saturdays, based on posted hours. The median Google rating is 4.5★ across 5 rated businesses.
Most of this list also appears on the Foundation repair companies in Rapid City ranking. See Foundation repair companies in Rapid City
Top 5 foundation repair companies in Rapid Valley at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Allphase Construction & Roofing | 78 | 4.3★ (16) | Rapid City, 5 mi away | 24/7 | Overall |
| 2 | Rapid Foundation Repair | 76 | 4.3★ (33) | Rapid City, 5 mi away | — | Most reviews |
| 3 | Extreme Foundation Repair | 76 | 4.5★ (28) | Rapid City, 5 mi away | — | — |
| 4 | Sunken Foundation Solutions | 74 | 5.0★ (6) | Sturgis, 15 mi away | — | — |
| 5 | Accurate Mudjacking and Foundation Repair | 73 | 5.0★ (3) | Rapid City, 7 mi away | Sat · Evenings | — |
The 5 best foundation repair companies in Rapid Valley, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Rapid City, 5 mi away
76/100CR ScoreRanked #2 because of its Google rating and review volume: 4.3★ from 33 Google reviews, the most Google reviews on this list (33).
- 4.3★ from 33 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 2601 Haines Ave, Rapid City, SD 57701
Based in Rapid City, 5 mi away
76/100CR ScoreRanked #3 because of its Google rating and review volume: 4.5★ from 28 Google reviews, 28 Google reviews.
- 4.5★ from 28 Google reviews
- Hours
- Mon–Fri 7 AM–3 PM · Sat–Sun closed
- Address
- 10 Mall Dr, Rapid City, SD 57701
Based in Sturgis, 15 mi away
74/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Foundation”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat–Sun closed
Based in Rapid City, 7 mi away
73/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 1400 Deadwood Ave Unit C, Rapid City, SD 57702
How much do foundation repair companies cost in Rapid Valley?
National price ranges in USD, not adjusted for Rapid 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 Rapid Valley foundation repair companies
We scored 5 Rapid Valley foundation repair companies on 8 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. Unknown factors are left out of the score, 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 Rapid Valley data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Foundation repair companies in Rapid Valley: frequently asked questions
Who is the best foundation repair company in Rapid Valley?
By CR Score, the highest-ranked foundation repair company in Rapid Valley, SD is Allphase Construction & Roofing with a CR Score of 78/100. It has 4.3★ from 16 Google reviews. It is open 24/7. Rapid Foundation Repair (#2) and Extreme Foundation Repair (#3) follow. We ranked 5 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Rapid Valley?
ContractorsRanked ranks 5 foundation repair companies serving Rapid Valley, SD. Counts are as of October 2026.
Which foundation repair companies in Rapid Valley are open 24/7?
1 ranked foundation repair company in Rapid Valley posts 24/7 hours. The highest-ranked is Allphase Construction & Roofing (#1). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Rapid Valley work on weekends?
2 of 5 ranked foundation repair companies post Saturday hours. The highest-ranked open Saturdays are Allphase Construction & Roofing (#1) and Accurate Mudjacking and Foundation Repair (#5). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Rapid 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 Rapid Valley. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rapid Valley foundation repair companies have?
The median Google rating among 5 rated foundation repair companies in Rapid Valley is 4.5★, with a median of 16 reviews. Rapid Foundation Repair has the most, 33 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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Rapid Valley count in this ranking?
Yes, if they are within 40 mi of the Rapid 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 Rapid Valley
- October 2026: CR Scores recalculated for 5 foundation repair companies serving Rapid Valley.
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