90/100CR Score
Ranked #1 because of its Google rating and availability: 4.8★ from 49 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 49 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best Foundation Repair Companies in Waterloo, ON (2026)
110 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Waterloo: S & Sons Waterproofing, CR Score 90/100; 4.8★ from 49 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Paint Foundation Painters, posts 24/7 hours; ranked #2 of 110.
- 9
Most-reviewed: The Crack Specialists, 467 Google reviews at 5.0★, the most of 110 ranked; ranked #9.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
110 Waterloo foundation repair companies are ranked here by CR Score, from 8 published factors. 29 are open 24/7, 74 open Saturdays and 52 open Sundays, based on posted hours. The median Google rating is 4.9★ across 110 rated businesses.
Top 10 foundation repair companies in Waterloo at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | S & Sons Waterproofing | 90 | 4.8★ (49) | Kitchener, 5 km away | 24/7 | Overall |
| 2 | Paint Foundation Painters | 90 | 5.0★ (121) | Kitchener, 2 km away | 24/7 | Emergencies |
| 3 | Wetness Protection | 89 | 5.0★ (154) | Norfolk County, 21 km away | Sat · Sun | — |
| 4 | On Point Masonry Repair and Waterproofing | 88 | 4.9★ (61) | Norfolk County, 33 km away | 24/7 | — |
| 5 | Aquamaster Basement Waterproofing Cambridge | 88 | 5.0★ (108) | Cambridge, 20 km away | Sat · Sun · Evenings | — |
| 6 | Marine Waterproofing | 88 | 5.0★ (55) | Brantford, 43 km away | 24/7 | — |
| 7 | PLUMBER ON DEMAND of KITCHENER, ON | 87 | 4.9★ (190) | Kitchener, 5 km away | 24/7 | — |
| 8 | The Crack Specialists | 86 | 5.0★ (66) | Waterloo | Sat | — |
| 9 | The Crack Specialists | 85 | 5.0★ (467) | Brant, 9 km away | — | Most reviews |
| 10 | Foundation Brothers | 85 | 4.9★ (160) | Norfolk County, 56 km away | Sat · Sun · Evenings | — |
The 110 best foundation repair companies in Waterloo, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Kitchener, 2 km away
90/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 121 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 121 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 36 Prince Albert Blvd, Kitchener, ON N2H 0B4
Based in Norfolk County, 21 km away
89/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 154 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 154 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 7 AM–5 PM · Sun 10 AM–3 PM
Based in Norfolk County, 33 km away
88/100CR ScoreRanked #4 because of its Google rating and availability: 4.9★ from 61 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 61 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Cambridge, 20 km away
88/100CR ScoreRanked #5 because of its Google rating and trade focus: 5.0★ from 108 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 108 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 246 Victoria Ave, Cambridge, ON N1S 3W5
Based in Brantford, 43 km away
88/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 55 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 55 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 33 Gunn Ave, Brantford, ON N3T 0S3
Based in Kitchener, 5 km away
87/100CR ScoreRanked #7 because of its Google rating and availability: 4.9★ from 190 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 190 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Waterloo
86/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 66 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 66 Google reviews
- Hours
- Mon–Sat 8 AM–6 PM · Sun closed
- Address
- 55 Northfield Dr E #275, Waterloo, ON N2K 3T6
Based in Brant, 9 km away
85/100CR ScoreRanked #9 because of its Google rating and review volume: 5.0★ from 467 Google reviews, the most Google reviews on this list (467).
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 467 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 1600 King St N #19, St. Jacobs, ON N0B 2N0
Based in Norfolk County, 56 km away
85/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 160 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 160 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 265927 Maple Dell Rd, Otterville, ON N0J 1R0
Based in Hamilton, 57 km away
84/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 107 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 107 Google reviews
- Hours
- Mon 7 AM–11:30 PM · Tue 7 AM–10 PM · Wed 8 AM–9 PM · Thu–Fri 8 AM–10 PM · Sat 8 AM–9 PM · Sun 7 AM–7 PM
- Address
- 180 James St S Suite 204, Hamilton, ON L8P 4V1
Based in Hamilton, 64 km away
84/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 143 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 143 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 13 Delena Ave S, Hamilton, ON L8H 1B7
Based in Hamilton, 57 km away
84/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 23 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 23 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1 Markland St, Hamilton, ON L8P 2J5
Based in Hamilton, 57 km away
84/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 82 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 82 Google reviews
- Hours
- Mon 8 AM–8 PM · Tue–Fri 8 AM–10 PM · Sat 8 AM–7 PM · Sun 7 AM–8 PM
- Address
- 21 King St W 5th Floor, Hamilton, ON L8P 4W7
Based in Brampton, 52 km away
84/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 64 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 64 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 9 AM–5 PM
Based in Hamilton, 60 km away
83/100CR ScoreRanked #16 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 822 Main St E, Hamilton, ON L8M 1L6
#17 City Wide Group
Based in Kitchener, 8 km away
83/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.5★ from 11 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 11 Google reviews
- Hours
- Mon–Sat 8 AM–8 PM · Sun 9 AM–3 PM
- Address
- 565 Trillium Dr Unit 4, Kitchener, ON N2R 1J4
#18 Airway Roofing
Based in Norfolk County, 48 km away
83/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 131 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 131 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Burlington, 59 km away
82/100CR ScoreRanked #19 because of its Google rating and availability: 4.5★ from 24 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.5★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1153 Pioneer Rd Unit 7, Burlington, ON L7M 1K5
#20 Drain Unit
Based in Hamilton, 56 km away
82/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 172 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 172 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 500 Stone Church Rd W, Hamilton, ON L9B 1R2
#21 T R West Inc
Based in Waterloo
82/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “Waterproofing service”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 8 Google reviews
- Address
- 720 The, Wilmot Line, Waterloo, ON N2J 3Z4
Based in Hamilton, 62 km away
82/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 14 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 14 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 290 Huxley Ave S, Hamilton, ON L8K 2R4
Based in Milton, 47 km away
82/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 112 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 112 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#24 WillFix
Based in Brampton, 54 km away
82/100CR ScoreRanked #24 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 16992 Side Rd 27, Terra Cotta, ON L7G 0N6
Based in Guelph, 26 km away
81/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 38 Google reviews, listed on Google as “Waterproofing service”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 38 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat 8 AM–3 PM · Sun closed
Foundation repair companies ranked #26 to #50
#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 110 ranked foundation repair companies here; the rest are on their profiles.
Also serving Waterloo
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 |
|---|---|---|
| Activa | 3.8★ (151) | In Waterloo |
| Captain Coating Epoxy Flooring | 5.0★ (1) | In Waterloo |
| Cicada Woodworks | 5.0★ (3) | In Waterloo |
| Custom Gunnite 1995 Inc | 5.0★ (2) | In Waterloo |
| Delta Air Systems Ltd. | 4.9★ (631) | In Waterloo |
| DeVrye Custom Renovations Inc. | 4.8★ (85) | In Waterloo |
| Doane Construction And Renovations Incorporated | 3.8★ (5) | In Waterloo |
| Easy Mix Concrete | 1.0★ (2) | 61 km |
| Foundation Brothers | 5.0★ (2) | 56 km |
| Lions Concrete Cutting & Coring Inc | 4.6★ (26) | In Waterloo |
| Mitchell Blackwell Parging | 4.9★ (101) | In Waterloo |
| Project X Construction | 4.3★ (27) | In Waterloo |
| RCC Waterproofing Brantford | 5.0★ (2) | 41 km |
| Rooter-Man Plumbing & Waterproofing Brantford | 5.0★ (2) | 37 km |
| Sarge Roofing & Contracting | 5.0★ (2) | 59 km |
| Starnose Landscaping & Excavation | 4.5★ (2) | 49 km |
| Superior Waterproofing Solutions | 2.5★ (2) | 3 km |
| The Regs Home Improvement | 5.0★ (2) | 29 km |
| Top Level Construction Inc | 5.0★ (63) | In Waterloo |
| Whiteway Plumbing | 4.8★ (380) | In Waterloo |
How much do foundation repair companies cost in Waterloo?
US national ranges converted to CAD, not adjusted for Waterloo. 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 |
How we ranked Waterloo foundation repair companies
We scored 110 Waterloo foundation repair companies on 8 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. Unknown factors are left out of the score, 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 Waterloo data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Foundation repair companies in Waterloo: frequently asked questions
Who is the best foundation repair company in Waterloo?
By CR Score, the highest-ranked foundation repair company in Waterloo, ON is S & Sons Waterproofing with a CR Score of 90/100. It has 4.8★ from 49 Google reviews. It is open 24/7. Paint Foundation Painters (#2) and Wetness Protection (#3) follow. We ranked 110 foundation repair companies on 8 factors, last updated October 22, 2026.
How many foundation repair companies are there in Waterloo?
ContractorsRanked ranks 110 foundation repair companies serving Waterloo, ON. 2 of them are based in Waterloo; the rest serve it from nearby towns. Another 20 within 64 km are listed but not ranked yet. Counts are as of October 2026.
Which foundation repair companies in Waterloo are open 24/7?
29 ranked foundation repair companies in Waterloo post 24/7 hours. The highest-ranked are S & Sons Waterproofing (#1), Paint Foundation Painters (#2) and On Point Masonry Repair and Waterproofing (#4). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Waterloo work on weekends?
74 of 110 ranked foundation repair companies post Saturday hours and 52 post Sunday hours. The highest-ranked open Saturdays are S & Sons Waterproofing (#1), Paint Foundation Painters (#2) and Wetness Protection (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Waterloo?
Foundation repair typically costs CA$3,130 to CA$11,430, with CA$7,270 typical (Per project: typical range of customer-reported repairs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for Waterloo. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Waterloo foundation repair companies have?
The median Google rating among 110 rated foundation repair companies in Waterloo is 4.9★, with a median of 23 reviews. The Crack Specialists has the most, 467 reviews, and ranks #9. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank foundation repair companies?
Each foundation repair company gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Waterloo count in this ranking?
Yes, if they are within 64 km of the Waterloo city centre, our service radius for foundation repair companies. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Waterloo
- October 2026: CR Scores recalculated for 110 foundation repair companies serving Waterloo.
More foundation repair companies and Waterloo pages
Foundation repair companies near Waterloo
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