9 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Cornwall: Crack Pro Foundation Repair, CR Score 89/100; 4.7★ from 39 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Brady's Quality Inc., posts 24/7 hours; ranked #4 of 9.
Most-reviewed: Garlow Roofing, 85 Google reviews at 4.2★, the most of 9 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
9 Cornwall foundation repair companies are ranked here by CR Score, from 8 published factors. 1 is open 24/7, 4 open Saturdays and 3 open Sundays, based on posted hours. The median Google rating is 4.6★ across 9 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Crack Pro Foundation Repair | 89 | 4.7★ (39) | Cornwall | Sat · Sun | Overall |
| 2 | Little Digger | 80 | 5.0★ (22) | Cornwall | Sat · Sun | — |
| 3 | Garlow Roofing | 78 | 4.2★ (85) | Cornwall | Sat | Most reviews |
| 4 | Brady's Quality Inc. | 75 | 3.8★ (32) | Ottawa, 62 km away | 24/7 | Emergencies |
| 5 | Foundation First Home Inspection Service | 74 | 5.0★ (7) | Massena, 48 km away | — | — |
| 6 | William Roach Roofing | 73 | 4.6★ (20) | Cornwall | — | — |
| 7 | The Foundation Experts Inc. | Foundation Repair Ottawa | 71 | 5.0★ (25) | Clarence-Rockland, 60 km away | — | — |
| 8 | Upstone Materials- Malone Concrete | 71 | 4.0★ (4) | Malone, 40 km away | — | — |
| 9 | Londondale Chimney & Foundation Services Inc | 70 | 2.9★ (9) | Cornwall | — | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.7★ from 39 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #2 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #3 because of its Google rating and review volume: 4.2★ from 85 Google reviews, the most Google reviews on this list (85).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ottawa, 62 km away
Ranked #4 because of its Google rating and availability: 3.8★ from 32 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Massena, 48 km away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Home inspector”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Cornwall
Ranked #6 because of its Google rating and review volume: 4.6★ from 20 Google reviews, 20 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Clarence-Rockland, 60 km away
Ranked #7 because of its Google rating and review volume: 5.0★ from 25 Google reviews, 25 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Malone, 40 km away
Ranked #8 because of its Google rating and trade focus: 4.0★ from 4 Google reviews, listed on Google as “Foundation”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cornwall
Ranked #9 because of its Google rating and trade focus: 2.9★ from 9 Google reviews, listed on Google as “Masonry contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
US national ranges converted to CAD, not adjusted for Cornwall. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Foundation repair | CA$3,130 | CA$7,270 | CA$11,430 | Per project: typical range of customer-reported repairs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 9 Cornwall 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 Cornwall 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 |