24 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in South Huron: RCC Waterproofing London, CR Score 58/100; 4.5★ from 20 Google reviews; open 24/7.
Best for emergencies (open 24/7): Basement Waterproofing Solutions, posts 24/7 hours; ranked #2 of 24.
Most-reviewed: Advanced Basement Systems, 172 Google reviews at 4.9★, the most of 24 ranked; ranked #10.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
24 South Huron foundation repair companies are ranked here by CR Score, from ten published factors. 8 are open 24/7, 13 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.8★ across 24 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | RCC Waterproofing London | 58 | 4.5★ (20) | London, 44 km away | 24/7 | Overall |
| 2 | Basement Waterproofing Solutions | 57 | 5.0★ (6) | Lambton Shores, 30 km away | 24/7 | Emergencies |
| 3 | ROYAL RESTORATION EPOXY FLOORS & CONCRETE RESURFACING | 56 | 5.0★ (143) | London, 46 km away | Sat · Sun · Evenings | — |
| 4 | Best Plumbing and Drainage Contractors | 55 | 4.8★ (85) | London, 48 km away | 24/7 | — |
| 5 | Jumbo Plumbing | 54 | 5.0★ (35) | London, 43 km away | 24/7 | — |
| 6 | Koala Insulation of London | 53 | 5.0★ (21) | London, 43 km away | 24/7 | — |
| 7 | DryBasements.com Ltd | 52 | 4.6★ (44) | Woodstock, 64 km away | — | — |
| 8 | Basement Waterproofing Pros | 52 | 4.8★ (9) | London, 50 km away | 24/7 | — |
| 9 | Power Foundation Systems Ltd | 52 | 4.7★ (52) | Lambton Shores, 35 km away | — | — |
| 10 | Advanced Basement Systems | 52 | 4.9★ (172) | London, 49 km away | — | Most reviews |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.5★ from 20 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 30 km away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 46 km away
Ranked #3 because of its Google rating and review volume: 5.0★ from 143 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 48 km away
Ranked #4 because of its Google rating and review volume: 4.8★ from 85 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 43 km away
Ranked #5 because of its Google rating and review volume: 5.0★ from 35 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 43 km away
Ranked #6 because of its Google rating and review volume: 5.0★ from 21 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodstock, 64 km away
Ranked #7 because of its Google rating and trade focus: 4.6★ from 44 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 50 km away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 9 Google reviews, listed on Google as “Water damage restoration service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Lambton Shores, 35 km away
Ranked #9 because of its Google rating and review volume: 4.7★ from 52 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 49 km away
Ranked #10 because of its Google rating and review volume: 4.9★ from 172 Google reviews, the most in South Huron.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Woodstock, 64 km away
Ranked #11 because of its Google rating and trade focus: 4.3★ from 6 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stratford, 42 km away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Waterproofing service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Stratford, 43 km away
Ranked #13 because of its Google rating and trade focus: 4.7★ from 3 Google reviews, listed on Google as “Waterproofing service”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in London, 51 km away
Ranked #14 because of its Google rating and review volume: 4.8★ from 73 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 48 km away
Ranked #15 because of its Google rating and review volume: 5.0★ from 13 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ancaster, 50 km away
Ranked #16 because of its Google rating and review volume: 4.9★ from 39 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 51 km away
Ranked #17 because of its Google rating and availability: 4.6★ from 11 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stratford, 44 km away
Ranked #18 because of its Google rating and review volume: 4.9★ from 42 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 50 km away
Ranked #19 because of its Google rating and review volume: 4.8★ from 21 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 45 km away
Ranked #20 because of its Google rating and review volume: 4.7★ from 34 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 49 km away
Ranked #21 because of its Google rating and review volume: 5.0★ from 16 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Bluewater, 36 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 42 km away
Ranked #23 because of its Google rating and trade focus: 3.1★ from 9 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 42 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
6 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 |
|---|---|---|
| A1 Waterproofing | 54 km | |
| Dpa Contracting Ltd | 5.0★ (2) | 44 km |
| Foundation Brothers | 5.0★ (2) | 61 km |
| Maxx Contracting Brick Chimney Repairs Waterproofing | 5.0★ (1) | 28 km |
| Postech Screw Piles Perth County | 5.0★ (1) | 42 km |
| Stopleak Basement Waterproofing | 41 km |
US national ranges converted to CAD, not adjusted for South Huron. 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 24 South Huron 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 South Huron 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 |