5 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Sterling: Acculevel, CR Score 91/100; 4.9★ from 420 Google reviews; open 24/7.
Most-reviewed: Colt's Construction, 44 Google reviews at 4.4★, the most of 5 ranked after Acculevel; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
5 Sterling foundation repair companies are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 4 open Saturdays and 2 open Sundays, based on posted hours. The median Google rating is 4.9★ across 5 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Acculevel | 91 | 4.9★ (420) | Rochelle, 34 mi away | 24/7 | Overall |
| 2 | KZ Waterproofing | 76 | 5.0★ (3) | Machesney Park, 39 mi away | Sat · Sun · Evenings | — |
| 3 | Colt's Construction | 71 | 4.4★ (44) | Caledonia, 25 mi away | Sat · Evenings | Most reviews |
| 4 | Blackhawk Foundation Co Inc | 70 | 5.0★ (5) | Geneseo, 31 mi away | Sat | — |
| 5 | Bruns Construction | 62 | 3.0★ (4) | Rochelle, 33 mi away | — | — |
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.
Ranked #1 because of its Google rating and review volume: 4.9★ from 420 Google reviews, the most Google reviews on this list (420).
Based in Machesney Park, 39 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Waterproofing service”.
Based in Caledonia, 25 mi away
Ranked #3 because of its Google rating and review volume: 4.4★ from 44 Google reviews, 44 Google reviews.
Based in Geneseo, 31 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “General contractor”.
Based in Rochelle, 33 mi away
Ranked #5 because of its Google rating and trade focus: 3.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
National price ranges in USD, not adjusted for Sterling. 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 |
We scored 5 Sterling 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 Sterling 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 |