416 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in New Canaan: United Waterproofing, CR Score 61/100; 4.9★ from 86 Google reviews; open 24/7.
Best for emergencies (open 24/7): Bonded Waterproofing Solutions, posts 24/7 hours; ranked #2 of 416.
Most-reviewed: Connecticut Basement Systems, 1,655 Google reviews at 4.8★, the most of 416 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
416 New Canaan foundation repair companies are ranked here by CR Score, from ten published factors. 108 are open 24/7, 331 open Saturdays and 247 open Sundays, based on posted hours. The median Google rating is 5.0★ across 416 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | United Waterproofing | 61 | 4.9★ (86) | Ridgefield, 12 mi away | 24/7 | Overall |
| 2 | Bonded Waterproofing Solutions | 59 | 5.0★ (130) | Bergenfield, 31 mi away | 24/7 | Emergencies |
| 3 | A & A Basement Waterproofing | 59 | 5.0★ (128) | Cheshire Village, 32 mi away | 24/7 | — |
| 4 | Full Basement Waterproofing Westchester | 59 | 5.0★ (26) | Briarcliff Manor, 16 mi away | 24/7 | — |
| 5 | HV Ground Solutions | 59 | 5.0★ (175) | Wappingers Falls, 39 mi away | 24/7 | — |
| 6 | Rain King Waterproofing | 58 | 4.6★ (29) | Rye, 15 mi away | 24/7 | — |
| 7 | Connecticut Basement Systems | 58 | 4.8★ (1,655) | Seymour, 28 mi away | — | Most reviews |
| 8 | We Fix Cracks | 58 | 4.8★ (18) | Stamford, 5 mi away | Sat · Sun | — |
| 9 | HRC Waterproofing | 57 | 4.9★ (77) | Jamaica, 36 mi away | 24/7 | — |
| 10 | Rain King Waterproofing | 57 | 5.0★ (4) | Stamford, 6 mi away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Waterproofing service”.
Based in Bergenfield, 31 mi away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 130 Google reviews, listed on Google as “Waterproofing service”.
Based in Cheshire Village, 32 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 128 Google reviews, listed on Google as “Waterproofing service”.
Based in Briarcliff Manor, 16 mi away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “Waterproofing service”.
Based in Wappingers Falls, 39 mi away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 175 Google reviews, listed on Google as “Waterproofing service”.
Based in Rye, 15 mi away
Ranked #6 because of its Google rating and trade focus: 4.6★ from 29 Google reviews, listed on Google as “Waterproofing service”.
Based in Seymour, 28 mi away
Ranked #7 because of its Google rating and review volume: 4.8★ from 1,655 Google reviews, the most in New Canaan.
Based in Stamford, 5 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Waterproofing service”.
Based in Jamaica, 36 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 77 Google reviews, listed on Google as “Waterproofing service”.
Based in Stamford, 6 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Waterproofing service”.
Based in West Hills, 31 mi away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 74 Google reviews, listed on Google as “Waterproofing service”.
Based in Garden City Park, 30 mi away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 115 Google reviews, listed on Google as “Waterproofing service”.
Based in Centereach, 25 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 102 Google reviews, listed on Google as “Construction company”.
Based in Greenburgh, 13 mi away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Waterproofing service”.
Based in Melville, 23 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Waterproofing service”.
Based in Danbury, 17 mi away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 101 Google reviews, listed on Google as “Waterproofing service”.
Based in Tarrytown, 19 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Waterproofing service”.
Based in Carlstadt, 36 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 42 Google reviews, listed on Google as “Waterproofing service”.
Based in Albertson, 27 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 215 Google reviews, listed on Google as “Waterproofing service”.
Based in Greenburgh, 12 mi away
Ranked #20 because of its Google rating and review volume: 5.0★ from 100 Google reviews.
Based in Hicksville, 28 mi away
Ranked #21 because of its Google rating and trade focus: 4.5★ from 23 Google reviews, listed on Google as “Waterproofing service”.
Based in Greenburgh, 7 mi away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Waterproofing service”.
Based in Caldwell, 39 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 36 Google reviews, listed on Google as “Waterproofing service”.
Based in Westbury, 27 mi away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 93 Google reviews, listed on Google as “Roofing contractor”.
Based in Danbury, 13 mi away
Ranked #25 because of its Google rating and review volume: 5.0★ from 91 Google reviews.
National price ranges in USD, not adjusted for New Canaan. 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 416 New Canaan 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 New Canaan 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 |