38 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Dorchester: Foundation Brothers, CR Score 61/100; 4.9★ from 160 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): RCC Waterproofing London, posts 24/7 hours; ranked #2 of 38.
Most-reviewed: DrainCam Plumbing, 329 Google reviews at 4.9★, the most of 38 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
38 Dorchester foundation repair companies are ranked here by CR Score, from ten published factors. 14 are open 24/7, 24 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.8★ across 38 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Foundation Brothers | 61 | 4.9★ (160) | Norfolk County, 41 km away | Sat · Sun · Evenings | Overall |
| 2 | RCC Waterproofing London | 60 | 4.5★ (20) | London, 13 km away | 24/7 | Emergencies |
| 3 | On Point Masonry Repair and Waterproofing | 59 | 4.9★ (61) | Norfolk County, 51 km away | 24/7 | — |
| 4 | DrainCam Plumbing | 59 | 4.9★ (329) | London, 26 km away | 24/7 | Most reviews |
| 5 | Marine Waterproofing | 58 | 5.0★ (55) | Brantford, 63 km away | 24/7 | — |
| 6 | ROYAL RESTORATION EPOXY FLOORS & CONCRETE RESURFACING | 57 | 5.0★ (143) | London, 21 km away | Sat · Sun · Evenings | — |
| 7 | Basement Waterproofing Solutions | 57 | 5.0★ (6) | Lambton Shores, 29 km away | 24/7 | — |
| 8 | Best Plumbing and Drainage Contractors | 57 | 4.8★ (85) | London, 18 km away | 24/7 | — |
| 9 | A Wet Basement Guy | 56 | 4.8★ (23) | Simcoe, 64 km away | 24/7 | — |
| 10 | Jumbo Plumbing | 56 | 5.0★ (35) | London, 14 km away | 24/7 | — |
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: 4.9★ from 160 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 13 km away
Ranked #2 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 Norfolk County, 51 km away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 26 km away
Ranked #4 because of its Google rating and review volume: 4.9★ from 329 Google reviews, the most in Dorchester.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brantford, 63 km away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 55 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 21 km away
Ranked #6 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 Lambton Shores, 29 km away
Ranked #7 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, 18 km away
Ranked #8 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 Simcoe, 64 km away
Ranked #9 because of its Google rating and trade focus: 4.8★ from 23 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 14 km away
Ranked #10 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 St. Thomas, 24 km away
Ranked #11 because of its Google rating and review volume: 5.0★ from 46 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 13 km away
Ranked #12 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 St. Thomas, 21 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “Landscaper”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 9 km away
Ranked #14 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, 26 km away
Ranked #15 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 Woodstock, 29 km away
Ranked #16 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, 8 km away
Ranked #17 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 St. Thomas, 23 km away
Ranked #18 because of its Google rating and trade focus: 4.4★ from 7 Google reviews, listed on Google as “Waterproofing service”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 4 km away
Ranked #19 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 London, 14 km away
Ranked #20 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in London, 17 km away
Ranked #21 because of its Google rating and review volume: 4.9★ from 172 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ancaster, 17 km away
Ranked #22 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, 13 km away
Ranked #23 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 Lambton Shores, 34 km away
Ranked #24 because of its Google rating and trade focus: 4.7★ from 52 Google reviews, listed on Google as “Concrete contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Stratford, 42 km away
Ranked #25 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.
#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | AJN Waterproofing Inc | 51 | 4.7★ (3) | 44 km |
| 27 | Ashworth Drainage | 50 | 4.7★ (34) | 10 km |
| 28 | Viking Restoration & Waterproofing | 50 | 5.0★ (13) | 61 km |
| 29 | The Porch Doctor - Flexstone Coatings | 50 | 5.0★ (48) | 29 km |
| 30 | Corner Gas Plumbing & Home Renovations | 49 | 5.0★ (16) | 12 km |
| 31 | RVM Trucking | 49 | 4.7★ (23) | 41 km |
| 32 | Handy Henry (Norfolk Concrete Contractor – Driveways, Patios, Pads, and Foundations) | 49 | 4.8★ (51) | 64 km |
| 33 | Goliath Roofing - Roof Installations and Skylights | 48 | 4.9★ (42) | 44 km |
| 34 | A.P. Hurley Construction & Emergency Services | 47 | 4.3★ (8) | 33 km |
| 35 | Mobile Mix Concrete | 46 | 3.1★ (9) | 16 km |
| 36 | Co-Fo Concrete Forming Construction Ltd | 46 | 5.0★ (3) | 16 km |
| 37 | JAB Contractor Services | 45 | 5.0★ (6) | 59 km |
| 38 | Coop's Roofs | 43 | 4.1★ (14) | 60 km |
9 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 | 16 km | |
| Alpha 1 Concrete Forming | 61 km | |
| Dpa Contracting Ltd | 5.0★ (2) | 17 km |
| Foundation Brothers | 5.0★ (2) | 17 km |
| London & District Concrete Services Limited | 4.6★ (7) | In Dorchester |
| Maxx Contracting Brick Chimney Repairs Waterproofing | 5.0★ (1) | 28 km |
| Postech Screw Piles Perth County | 5.0★ (1) | 60 km |
| Stopleak Basement Waterproofing | 14 km | |
| We Seal That | 58 km |
US national ranges converted to CAD, not adjusted for Dorchester. 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 38 Dorchester 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 Dorchester 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 |