64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.9★ from 181 Google reviews.
- 4.9★ from 181 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 207 Bank St Suite 311, Ottawa, ON K2P 2N2
Best Foundation Repair Companies in Ottawa, ON (2026)
65 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Ottawa: Action Restoration foundation repair, CR Score 64/100; 4.9★ from 181 Google reviews; open 24/7.
- 5
Best for emergencies (open 24/7): Simonz Roofing & Waterproofing, posts 24/7 hours; ranked #5 of 65.
- 15
Most-reviewed: Vanity Roofing Ottawa, 243 Google reviews at 4.7★, the most of 65 ranked; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
65 Ottawa foundation repair companies are ranked here by CR Score, from ten published factors. 12 are open 24/7, 35 open Saturdays and 29 open Sundays, based on posted hours. The median Google rating is 4.9★ across 65 rated businesses.
Top 10 foundation repair companies in Ottawa at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Action Restoration foundation repair | 64 | 4.9★ (181) | Ottawa | 24/7 | Overall |
| 2 | Wet Basement Solutions | 63 | 5.0★ (91) | Clarence-Rockland, 14 km away | Sat · Sun · Evenings | — |
| 3 | Braden Foundation Construction | 61 | 5.0★ (99) | Ottawa | — | — |
| 4 | Ottawa Foundation Repair Contractor | 60 | 4.9★ (92) | Ottawa | — | — |
| 5 | Simonz Roofing & Waterproofing | 60 | 4.9★ (63) | Nepean, 14 km away | 24/7 | Emergencies |
| 6 | Pro Post Foundations - Ottawa | 59 | 4.9★ (86) | Nepean, 20 km away | — | — |
| 7 | City Residential Foundation Repair Ottawa | 58 | 4.9★ (78) | Kanata, 20 km away | — | — |
| 8 | Ottawa Foundation Repair Specialists | 58 | 5.0★ (6) | Ottawa | Sat · Sun | — |
| 9 | Bol-Dan Foundation & Masonry Inc | 58 | 4.9★ (16) | Ottawa | 24/7 | — |
| 10 | 911 Foundation Repair Services | 57 | 4.5★ (19) | Kanata, 23 km away | Sat · Sun | — |
The 65 best foundation repair companies in Ottawa, ranked
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.
Based in Clarence-Rockland, 14 km away
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 91 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 91 Google reviews
- Hours
- Mon–Sun 6 AM–11 PM
- Address
- 3591 Innes Rd #4, Orléans, ON K1C 1T1
Based in Ottawa
61/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 99 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 99 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 5300 Ramsayville Rd, Ottawa, ON K1G 3N4
Based in Ottawa
60/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 92 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 92 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 281 Hinchey Ave, Ottawa, ON K1Y 2T5
Based in Nepean, 14 km away
60/100CR ScoreRanked #5 because of its Google rating and review volume: 4.9★ from 63 Google reviews.
- 4.9★ from 63 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 48 Upney Dr, Nepean, ON K2J 5G7
Based in Nepean, 20 km away
59/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Foundation”.
- 4.9★ from 86 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
Based in Kanata, 20 km away
58/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 78 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
Based in Ottawa
58/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
Based in Ottawa
58/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Contractor”.
- 4.9★ from 16 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1730 St. Laurent Blvd Unit 800, Ottawa, ON K1G 5L1
Based in Kanata, 23 km away
57/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.5★ from 19 Google reviews, listed on Google as “Waterproofing service”.
- 4.5★ from 19 Google reviews
- Hours
- Mon–Sun 7 AM–5 PM
- Address
- 8 Sweetnam Dr, Stittsville, ON K2S 1G2
Based in Nepean, 17 km away
57/100CR ScoreRanked #11 because of its Google rating and review volume: 5.0★ from 65 Google reviews.
- 5.0★ from 65 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 168 Point Prim Cres, Nepean, ON K2J 6P6
Based in Kanata, 19 km away
57/100CR ScoreRanked #12 because of its Google rating and review volume: 5.0★ from 123 Google reviews.
- 5.0★ from 123 Google reviews
- Hours
- Mon–Fri 7 AM–9 PM · Sat–Sun 9 AM–5 PM
- Address
- 70 McDermot Ct, Kanata, ON K2L 3V5
Based in Ottawa
57/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 43 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 8 AM–12 PM · Sun closed
- Address
- 61 Norway Spruce St, Ottawa, ON K2S 1P8
Based in Nepean, 24 km away
57/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 54 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 54 Google reviews
- Hours
- Mon–Fri 7 AM–5 PM · Sat–Sun closed
- Address
- 1926 Rte 148, Luskville, Quebec J0X 2G0
Based in Kanata, 25 km away
57/100CR ScoreRanked #15 because of its Google rating and review volume: 4.7★ from 243 Google reviews, the most in Ottawa.
- 4.7★ from 243 Google reviews
- Hours
- Mon–Fri 6:30 AM–9 PM · Sat 8 AM–9 PM · Sun 10 AM–5 PM
- Address
- 2838 Carp Rd Unit 3, Carp, ON K0A 1L0
Based in Clarence-Rockland, 37 km away
56/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.8★ from 71 Google reviews, listed on Google as “Foundation”.
- 4.8★ from 71 Google reviews
- Hours
- Mon–Fri 7:30 AM–5 PM · Sat–Sun closed
- Address
- 433 Laurier St, Rockland, ON K4K 1E7
Based in Ottawa
56/100CR ScoreRanked #17 because of its Google rating and review volume: 4.9★ from 42 Google reviews.
- 4.9★ from 42 Google reviews
- Hours
- Mon–Fri 8 AM–8 PM · Sat–Sun 9 AM–5 PM
- Address
- 1178 Checkers Rd, Ottawa, ON K2C 2S7
Based in Ottawa
56/100CR ScoreRanked #18 because of its Google rating and review volume: 4.8★ from 185 Google reviews.
- 4.8★ from 185 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 1620 Scott St, Ottawa, ON K1Y 4S7
Based in Ottawa
55/100CR ScoreRanked #19 because of its Google rating and review volume: 4.9★ from 35 Google reviews.
- 4.9★ from 35 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 8435 Copeland Rd, Ottawa, ON K0A 1B0
Based in Ottawa
55/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.3★ from 17 Google reviews, listed on Google as “Roofing contractor”.
- 4.3★ from 17 Google reviews
- Hours
- Mon–Sat 7 AM–5 PM · Sun 5 AM–5 PM
- Address
- 434 Queen Mary St, Ottawa, ON K1K 1W5
Based in Ottawa
55/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “Construction company”.
- 5.0★ from 21 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–4 PM · Sun closed
- Address
- 3 Fairfield St, Ottawa, ON K2H 5J7
#22 EC Foundations
Based in Ottawa
55/100CR ScoreRanked #22 because of its Google rating and review volume: 4.9★ from 51 Google reviews.
- 4.9★ from 51 Google reviews
- Hours
- Mon–Fri 8:30 AM–4:30 PM · Sat–Sun closed
- Address
- 81 Auriga Dr Unit #8, Ottawa, ON K2E 7Y5
Based in Nepean, 9 km away
55/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Waterproofing service”.
- 5.0★ from 11 Google reviews
- Hours
- Mon–Fri 6 AM–6 PM · Sat–Sun closed
- Address
- 70 Bongard Ave, Nepean, ON K2E 7Z9
#24 MyDeck.ca
Based in Kanata, 20 km away
55/100CR ScoreRanked #24 because of its Google rating and review volume: 4.9★ from 70 Google reviews.
- 4.9★ from 70 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in Kanata, 18 km away
55/100CR ScoreRanked #25 because of its Google rating and review volume: 4.9★ from 30 Google reviews.
- 4.9★ from 30 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 51 Peary Way, Kanata, ON K2L 1Z9
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 65 ranked foundation repair companies here; the rest are on their profiles.
Also serving Ottawa
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 |
|---|---|---|
| Atlantic Basement Systems | 5.0★ (20) | In Ottawa |
| Build it back | 4.8★ (62) | In Ottawa |
| Capital Home Services | 2.4★ (22) | In Ottawa |
| Cardel Homes | 3.3★ (32) | In Ottawa |
| Crepi Gatineau | 4.7★ (28) | In Ottawa |
| D'Agui Masonry Ottawa | 5.0★ (175) | In Ottawa |
| Empire Parging & Interlock Repair | Ottawa | 5.0★ (11) | In Ottawa |
| Haven Building Group | 5.0★ (17) | In Ottawa |
| Legend Flooring | 5.0★ (40) | In Ottawa |
| M. B. RANDA CONSTRUCTION | 5.0★ (12) | In Ottawa |
| Monaco Construction | 4.1★ (51) | In Ottawa |
| Ottawa Lawn, Parging and Snow | 5.0★ (34) | In Ottawa |
| Ottawa Parging Group | 4.9★ (169) | In Ottawa |
| Prestige Home Improvement | 4.7★ (92) | In Ottawa |
| Remarkable Construction Ltd. | 5.0★ (33) | In Ottawa |
| Safari Plumbing Ltd. | 4.6★ (403) | In Ottawa |
| SQ Contracting | 5.0★ (10) | In Ottawa |
| Taylor Construction LTD. | 5.0★ (10) | In Ottawa |
| Tipi Plumbing Inc | 4.5★ (13) | In Ottawa |
| Top quality Ottawa | 5.0★ (33) | In Ottawa |
How much do foundation repair companies cost in Ottawa?
US national ranges converted to CAD, not adjusted for Ottawa. 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 Ottawa foundation repair companies
We scored 65 Ottawa 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 Ottawa 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 |
Foundation repair companies in Ottawa: frequently asked questions
Who is the best foundation repair company in Ottawa?
By CR Score, the highest-ranked foundation repair company in Ottawa, ON is Action Restoration foundation repair with a CR Score of 64/100. It has 4.9★ from 181 Google reviews. It is open 24/7. Wet Basement Solutions (#2) and Braden Foundation Construction (#3) follow. We ranked 65 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Ottawa?
ContractorsRanked ranks 65 foundation repair companies serving Ottawa, ON. 23 of them are based in Ottawa; 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 Ottawa are open 24/7?
12 ranked foundation repair companies in Ottawa post 24/7 hours. The highest-ranked are Action Restoration foundation repair (#1), Simonz Roofing & Waterproofing (#5) and Bol-Dan Foundation & Masonry Inc (#9). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Ottawa work on weekends?
35 of 65 ranked foundation repair companies post Saturday hours and 29 post Sunday hours. The highest-ranked open Saturdays are Action Restoration foundation repair (#1), Wet Basement Solutions (#2) and Simonz Roofing & Waterproofing (#5). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Ottawa?
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 Ottawa. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Ottawa foundation repair companies have?
The median Google rating among 65 rated foundation repair companies in Ottawa is 4.9★, with a median of 19 reviews. Vanity Roofing Ottawa has the most, 243 reviews, and ranks #15. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do foundation repair companies outside Ottawa count in this ranking?
Yes, if they are within 64 km of the Ottawa 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 Ottawa
- October 2026: CR Scores recalculated for 65 foundation repair companies serving Ottawa.
- October 2026: 1 duplicate listing merged.
More foundation repair companies and Ottawa pages
Foundation repair companies near Ottawa
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- Foundation repair companies in Clarence-Rockland, ON65 ranked
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- Foundation repair companies in Arnprior, ON56 ranked
- Foundation repair companies in Smiths Falls, ON54 ranked
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