354 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Willowdale: RCC Waterproofing Toronto, CR Score 66/100; 4.8★ from 634 Google reviews; open 24/7.
Best for emergencies (open 24/7): RCC Waterproofing Vaughan, posts 24/7 hours; ranked #4 of 354.
Most-reviewed: New Canadian Drain and Plumbing Ltd, 1,463 Google reviews at 4.7★, the most of 354 ranked; ranked #46.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
354 Willowdale foundation repair companies are ranked here by CR Score, from ten published factors. 140 are open 24/7, 287 open Saturdays and 212 open Sundays, based on posted hours. The median Google rating is 5.0★ across 354 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | RCC Waterproofing Toronto | 66 | 4.8★ (634) | Toronto, 6 km away | 24/7 | Overall |
| 2 | Aquatech Basement Waterproofing Toronto | 65 | 5.0★ (655) | Toronto, 11 km away | Sat · Sun · Evenings | — |
| 3 | Groundworks | 64 | 4.9★ (1,412) | East Gwillimbury, 22 km away | Sat · Sun · Evenings | — |
| 4 | RCC Waterproofing Vaughan | 63 | 4.9★ (180) | Concord, 14 km away | 24/7 | Emergencies |
| 5 | Direct Basement Waterproofing Toronto | 62 | 5.0★ (271) | Toronto, 19 km away | Sat · Sun · Evenings | — |
| 6 | Aquamaster Basement Waterproofing Toronto | 62 | 4.9★ (274) | Toronto, 14 km away | Sat · Sun · Evenings | — |
| 7 | Dryshield Waterproofing Toronto | 62 | 4.9★ (245) | North York, 13 km away | Sat · Sun · Evenings | — |
| 8 | Aquatech Waterproofing | 62 | 5.0★ (78) | Vaughan, 14 km away | 24/7 | — |
| 9 | RCC Waterproofing North York | 62 | 4.9★ (77) | Toronto, 10 km away | 24/7 | — |
| 10 | Stay Dry Waterproofing | 62 | 4.8★ (97) | North York, 10 km 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: 4.8★ from 634 Google reviews, listed on Google as “Waterproofing service”.
Based in Toronto, 11 km away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 655 Google reviews, listed on Google as “Waterproofing service”.
Based in East Gwillimbury, 22 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,412 Google reviews, listed on Google as “Waterproofing service”.
Based in Concord, 14 km away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 180 Google reviews, listed on Google as “Waterproofing service”.
Based in Toronto, 19 km away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “Waterproofing service”.
Based in Toronto, 14 km away
Ranked #6 because of its Google rating and trade focus: 4.9★ from 274 Google reviews, listed on Google as “Waterproofing service”.
Based in North York, 13 km away
Ranked #7 because of its Google rating and trade focus: 4.9★ from 245 Google reviews, listed on Google as “Waterproofing service”.
Based in Vaughan, 14 km away
Ranked #8 because of its Google rating and trade focus: 5.0★ from 78 Google reviews, listed on Google as “Waterproofing service”.
Based in Toronto, 10 km 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 North York, 10 km away
Ranked #10 because of its Google rating and trade focus: 4.8★ from 97 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 30 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 316 Google reviews, listed on Google as “Waterproofing service”.
Based in East York, 9 km away
Ranked #12 because of its Google rating and trade focus: 4.8★ from 177 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 27 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 109 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 29 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 121 Google reviews, listed on Google as “Waterproofing service”.
Based in Toronto, 12 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 31 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 123 Google reviews, listed on Google as “Waterproofing service”.
Based in Toronto, 14 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 22 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 166 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 27 km away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 121 Google reviews, listed on Google as “Waterproofing service”.
Based in Etobicoke, 18 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Waterproofing service”.
Based in Markham, 10 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 24 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “Waterproofing service”.
Based in Mississauga, 25 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 161 Google reviews, listed on Google as “Waterproofing service”.
Based in East Gwillimbury, 35 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 208 Google reviews, listed on Google as “Waterproofing service”.
Based in Richmond Hill, 15 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Waterproofing service”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 354 ranked foundation repair companies here; the rest are on their profiles.
20 more foundation repair companies within 64 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| 1 Day Painting | 5.0★ (2) | 17 km |
| a waterproofing | 5.0★ (2) | 8 km |
| AR Affordable Renovation | 5.0★ (2) | In Willowdale |
| Base Lab Renovations | 5.0★ (1) | In Willowdale |
| Basement Waterproofing Markham | 5.0★ (2) | 7 km |
| D.S Foundation and Concrete | 5.0★ (2) | 20 km |
| DrainWorks Plumbing North York | 5.0★ (1) | In Willowdale |
| First Base Construction inc. | 5.0★ (2) | 7 km |
| Gta Roofing and Waterproofing// Toronto Waterproofing | 5.0★ (2) | 13 km |
| Holt Construction Services Ltd. | 5.0★ (2) | 17 km |
| Homepros basement waterproofing Concord | 5.0★ (2) | 4 km |
| J. Cameron Construction | 5.0★ (9) | In Willowdale |
| JP DOMUS DESIGN & BUILD | 5.0★ (2) | 9 km |
| L & L Contracting And Waterproofing INC | 3.0★ (2) | 11 km |
| Load Bearing Wall Removal Services | 5.0★ (1) | In Willowdale |
| Meada Construction Inc | 5.0★ (3) | In Willowdale |
| Oakwood masonry and waterproofing | In Willowdale | |
| Roof Wise Roofing & Masonry | 3.0★ (2) | 11 km |
| Sher Construction | 5.0★ (2) | In Willowdale |
| TSN Lighthouse Ltd. | 5.0★ (2) | In Willowdale |
US national ranges converted to CAD, not adjusted for Willowdale. 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 354 Willowdale 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 Willowdale 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 |