97 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Welland: All Dry Waterproofing Ltd. - Basement Specialists, CR Score 61/100; 5.0★ from 128 Google reviews.
Best for emergencies (open 24/7): RCC Waterproofing Stoney Creek, posts 24/7 hours; ranked #6 of 97.
Most-reviewed: Buffalo Roofing, 379 Google reviews at 4.8★, the most of 97 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
97 Welland foundation repair companies are ranked here by CR Score, from ten published factors. 33 are open 24/7, 70 open Saturdays and 51 open Sundays, based on posted hours. The median Google rating is 5.0★ across 97 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | All Dry Waterproofing Ltd. - Basement Specialists | 61 | 5.0★ (128) | Welland | — | Overall |
| 2 | Harris Waterproofing | 60 | 4.8★ (85) | Brant, 27 km away | Sat · Sun | — |
| 3 | Aquamaster Basement Waterproofing Hamilton | 60 | 5.0★ (143) | Hamilton, 52 km away | Sat · Sun · Evenings | — |
| 4 | Royal Work Basement Waterproofing Hamilton | 60 | 5.0★ (132) | Hamilton, 50 km away | Sat · Sun · Evenings | — |
| 5 | McMillan Waterproofing Niagara | 59 | 5.0★ (51) | St. Catharines, 18 km away | Sat | — |
| 6 | RCC Waterproofing Stoney Creek | 59 | 4.8★ (41) | Burlington, 45 km away | 24/7 | Emergencies |
| 7 | Aquatech Basement Waterproofing | 59 | 5.0★ (107) | Hamilton, 59 km away | Sat · Sun · Evenings | — |
| 8 | RCC Waterproofing Hamilton | 58 | 4.5★ (80) | Hamilton, 49 km away | 24/7 | — |
| 9 | Foundation Fix Inc. | 58 | 4.7★ (42) | Burlington, 12 km away | Sat · Evenings | — |
| 10 | Foundation Waterproofing by Moe | 58 | 4.7★ (50) | Welland | — | — |
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: 5.0★ from 128 Google reviews, listed on Google as “Waterproofing service”.
Based in Brant, 27 km away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 85 Google reviews, listed on Google as “Waterproofing service”.
Based in Hamilton, 52 km away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 143 Google reviews, listed on Google as “Waterproofing service”.
Based in Hamilton, 50 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 132 Google reviews, listed on Google as “Waterproofing service”.
Based in St. Catharines, 18 km away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Waterproofing service”.
Based in Burlington, 45 km away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 41 Google reviews, listed on Google as “Waterproofing service”.
Based in Hamilton, 59 km away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 107 Google reviews, listed on Google as “Waterproofing service”.
Based in Hamilton, 49 km away
Ranked #8 because of its Google rating and trade focus: 4.5★ from 80 Google reviews, listed on Google as “Waterproofing service”.
Based in Burlington, 12 km away
Ranked #9 because of its Google rating and trade focus: 4.7★ from 42 Google reviews, listed on Google as “Waterproofing service”.
Based in Welland
Ranked #10 because of its Google rating and trade focus: 4.7★ from 50 Google reviews, listed on Google as “Waterproofing service”.
Based in Welland
Ranked #11 because of its Google rating and trade focus: 5.0★ from 32 Google reviews, listed on Google as “Foundation”.
Based in Hamilton, 59 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 82 Google reviews, listed on Google as “Waterproofing service”.
Based in Port Colborne, 12 km away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Waterproofing service”.
Based in Burlington, 56 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Waterproofing service”.
Based in Oakville, 63 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 84 Google reviews, listed on Google as “Waterproofing service”.
Based in Buffalo, 34 km away
Ranked #16 because of its Google rating and review volume: 5.0★ from 177 Google reviews.
Based in Oakville, 63 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Waterproofing service”.
Based in Williamsville, 45 km away
Ranked #18 because of its Google rating and review volume: 4.8★ from 379 Google reviews, the most in Welland.
Based in Hamilton, 59 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 23 Google reviews, listed on Google as “Waterproofing service”.
Based in Hamilton, 56 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Waterproofing service”.
Based in Buffalo, 42 km away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 59 Google reviews, listed on Google as “Waterproofing service”.
Based in Niagara Falls, 23 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 50 Google reviews, listed on Google as “Water damage restoration service”.
Based in Hamilton, 56 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 67 Google reviews, listed on Google as “Foundation”.
Based in Hamilton, 54 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 14 Google reviews, listed on Google as “Waterproofing service”.
Based in Burlington, 46 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 21 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 97 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 |
|---|---|---|
| All-Pro Waterproofing & Excavating Inc | 14 km | |
| Cecchini Plumbing | 5.0★ (1) | 33 km |
| Easy Mix Concrete | 1.0★ (2) | 60 km |
| Harris Waterproofing Hamilton | 5.0★ (1) | 63 km |
| Kyle Collins Waterproofing | 13 km | |
| Maximum Concrete Foundations Inc | In Welland | |
| Neverwet Basement Waterproofing | 5.0★ (1) | 47 km |
| Niagara Waterproofing | 12 km | |
| Pendulum Contracting Services | In Welland | |
| Post pro fence foundations | 5.0★ (1) | 60 km |
| Proseal Waterproofing & Contracting Inc. | In Welland | |
| RC Waterproofing | 5.0★ (1) | 63 km |
| Reska & Sons, Llc | 5.0★ (2) | 38 km |
| RJR Excavating | 5.0★ (2) | In Welland |
| Rooter-Man Plumbing & Waterproofing Thorold | 12 km | |
| Sarge Roofing & Contracting | 5.0★ (2) | 57 km |
| Stone Foundations | 1.0★ (2) | 24 km |
| Theriault Forming Construction Ltd. | 5.0★ (1) | 44 km |
| Umbrella Waterproofing Plumbing & Drains | 5.0★ (1) | 60 km |
| Vancore Construction - Custom Homes & Renovations Niagara | In Welland |
US national ranges converted to CAD, not adjusted for Welland. 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 97 Welland 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 Welland 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 |