56/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.4★ from 34 Google reviews, listed on Google as “Waterproofing service”.
- 4.4★ from 34 Google reviews
- Hours
- Mon–Fri 8 AM–4 PM · Sat–Sun closed
Best Foundation Repair Companies in Nanaimo, BC (2026)
25 foundation repair companies ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Nanaimo: Island Basement Systems, CR Score 56/100; 4.4★ from 34 Google reviews.
- 3
Best for emergencies (open 24/7): Cardinal Roofing and Waterproofing ltd, posts 24/7 hours; ranked #3 of 25.
- 5
Most-reviewed: GVRD Roofing Inc., 108 Google reviews at 4.7★, the most of 25 ranked; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
25 Nanaimo foundation repair companies are ranked here by CR Score, from ten published factors. 6 are open 24/7, 17 open Saturdays and 11 open Sundays, based on posted hours. The median Google rating is 5.0★ across 25 rated businesses.
Top 10 foundation repair companies in Nanaimo at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Island Basement Systems | 56 | 4.4★ (34) | Colwood, 23 km away | — | Overall |
| 2 | Casa Sundecks Ltd. | 56 | 5.0★ (75) | Campbell River, 37 km away | Sat · Sun | — |
| 3 | Cardinal Roofing and Waterproofing ltd | 56 | 5.0★ (4) | Nanaimo | 24/7 | Emergencies |
| 4 | LayCon Ltd Concrete Foundations | 55 | 5.0★ (7) | Nanaimo | Sat · Sun · Evenings | — |
| 5 | GVRD Roofing Inc. | 55 | 4.7★ (108) | Vancouver, 59 km away | 24/7 | Most reviews |
| 6 | Sublime Sundecks | 55 | 5.0★ (28) | Nanaimo | Sat | — |
| 7 | Canadian Octagon Construction Ltd. | 54 | 4.9★ (18) | Vancouver, 61 km away | Sat · Evenings | — |
| 8 | Your Friendly Neighbourhood Roofer | 53 | 4.9★ (9) | Nanaimo | Sat · Sun | — |
| 9 | Allterrain Roofing INC | 52 | 4.5★ (28) | Nanaimo | — | — |
| 10 | Elite Island Roofing | 52 | 4.5★ (25) | Nanaimo | — | — |
The 25 best foundation repair companies in Nanaimo, 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 Campbell River, 37 km away
56/100CR ScoreRanked #2 because of its Google rating and review volume: 5.0★ from 75 Google reviews.
- 5.0★ from 75 Google reviews
- Hours
- Mon–Sun 8 AM–6 PM
Based in Nanaimo
56/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 4 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Nanaimo
55/100CR ScoreRanked #4 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “General contractor”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Fri 7 AM–10 PM · Sat–Sun 8 AM–4 PM
- Address
- 7402 Lantzville Rd, Lantzville, BC V0R 2H0
Based in Vancouver, 59 km away
55/100CR ScoreRanked #5 because of its Google rating and review volume: 4.7★ from 108 Google reviews, the most in Nanaimo.
- 4.7★ from 108 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1917 W 4th Ave #226, Vancouver, BC V6J 1M7
Based in Nanaimo
55/100CR ScoreRanked #6 because of its Google rating and review volume: 5.0★ from 28 Google reviews.
- 5.0★ from 28 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 10 AM–4 PM · Sun closed
- Address
- 3002 Kilpatrick Rd, Nanaimo, BC V9R 6W6
Based in Vancouver, 61 km away
54/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 18 Google reviews, listed on Google as “Waterproofing service”.
- 4.9★ from 18 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat 10 AM–4:30 PM · Sun closed
- Address
- 1211 Melville St #906, Vancouver, BC V6E 0A7
Based in Nanaimo
53/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.9★ from 9 Google reviews, listed on Google as “Roofing contractor”.
- 4.9★ from 9 Google reviews
- Hours
- Mon–Sun 7:30 AM–5:30 PM
Based in Nanaimo
52/100CR ScoreRanked #9 because of its Google rating and review volume: 4.5★ from 28 Google reviews.
- 4.5★ from 28 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 821 Douglas Ave, Nanaimo, BC V9R 4M9
Based in Nanaimo
52/100CR ScoreRanked #10 because of its Google rating and review volume: 4.5★ from 25 Google reviews.
- 4.5★ from 25 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
Based in Richmond, 59 km away
51/100CR ScoreRanked #11 because of its Google rating and review volume: 4.7★ from 24 Google reviews.
- 4.7★ from 24 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Richmond, 57 km away
50/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.6★ from 9 Google reviews, listed on Google as “Waterproofing service”.
- 4.6★ from 9 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat–Sun closed
- Address
- 12491 No 2 Rd #21, Richmond, BC V7E 2G1
Based in Vancouver, 60 km away
49/100CR ScoreRanked #13 because of its Google rating and review volume: 4.9★ from 59 Google reviews.
- 4.9★ from 59 Google reviews
- Hours
- Mon–Thu 8 AM–4 PM · Fri 8 AM–1 PM · Sat–Sun closed
- Address
- 1285 W Broadway #600, Vancouver, BC V6H 3X8
Based in Vancouver, 61 km away
49/100CR ScoreRanked #14 because of its Google rating and availability: 5.0★ from 7 Google reviews, open 24/7.
- 5.0★ from 7 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 701 W Georgia St #1500, Vancouver, BC V7Y 1C6
Based in Vancouver, 64 km away
48/100CR ScoreRanked #15 because of its Google rating and review volume: 4.9★ from 15 Google reviews.
- 4.9★ from 15 Google reviews
- Hours
- Mon–Sun 8 AM–5 PM
- Address
- 2077 E 27th Ave, Vancouver, BC V5N 2W7
Based in Richmond, 57 km away
48/100CR ScoreRanked #16 because of its Google rating and review volume: 5.0★ from 36 Google reviews.
- 5.0★ from 36 Google reviews
- Hours
- Mon–Fri 9:30 AM–5:30 PM · Sat–Sun closed
- Address
- 5740 Langtree Ave, Richmond, BC V7C 4L3
Based in Vancouver, 60 km away
48/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1661 Davie St, Vancouver, BC V6G 0E1
Based in Vancouver, 61 km away
48/100CR ScoreRanked #18 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 409 W 5th Ave, Vancouver, BC V6J 1P3
Based in Vancouver, 56 km away
47/100CR ScoreRanked #19 because of its Google rating and trade focus: 3.0★ from 3 Google reviews, listed on Google as “Concrete contractor”.
- 3.0★ from 3 Google reviews
- Hours
- Mon–Sun 6 AM–6 PM
- Address
- 1911 Waterloo St, Vancouver, BC V6R 3G7
#20 Alberni Roofing
Based in Port Alberni, 56 km away
47/100CR ScoreRanked #20 because of its Google rating and review volume: 4.8★ from 21 Google reviews.
- 4.8★ from 21 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun closed
Based in New Westminster, 60 km away
46/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Construction company”.
- 5.0★ from 4 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat 10 AM–5 PM · Sun closed
#22 Axis BC
Based in Vancouver, 60 km away
46/100CR ScoreRanked #22 because of its Google rating and review volume: 5.0★ from 10 Google reviews.
- 5.0★ from 10 Google reviews
- Hours
- Mon–Fri 8 AM–5 PM · Sat 9 AM–3 PM · Sun closed
- Address
- 501 Pacific St, Vancouver, BC V6Z 2X6
#23 C M Sundecks Ltd
Based in Vancouver, 56 km away
46/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Deck builder”.
- 5.0★ from 7 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–4:30 PM · Sun closed
- Address
- 3621 W 26th Ave #305, Vancouver, BC V6S 1P2
Based in Vancouver, 59 km away
45/100CR ScoreRanked #24 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Roofing contractor”.
- 5.0★ from 6 Google reviews
- Hours
- Mon–Fri 7 AM–6 PM · Sat 8 AM–4 PM · Sun closed
- Address
- 1529 W Broadway, Vancouver, BC V6J 5M6
#25 Drystone Masonry
Based in North Cowichan, 40 km away
44/100CR ScoreRanked #25 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Concrete contractor”.
- 5.0★ from 3 Google reviews
- Hours
- Mon–Fri 9 AM–5 PM · Sat–Sun closed
- Address
- 1978 N End Rd, Salt Spring, BC V8K 1C9
Also serving Nanaimo
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 |
|---|---|---|
| 250 Plumber | 4.8★ (137) | In Nanaimo |
| B. Gallant Homes Ltd. | 4.5★ (37) | In Nanaimo |
| Bryan's Mechanical | 4.9★ (176) | In Nanaimo |
| Clark Pacific Excavating Inc | 4.7★ (37) | In Nanaimo |
| Creative By Design Landscaping | 5.0★ (11) | In Nanaimo |
| Creative Concepts Construction | 4.8★ (21) | In Nanaimo |
| Dutch Carpenter and Co. | 4.9★ (75) | In Nanaimo |
| HoeDown Excavating | 4.6★ (20) | In Nanaimo |
| Island Efficient Excavating | 4.9★ (14) | In Nanaimo |
| Island Heights Construction Ltd. | 5.0★ (27) | In Nanaimo |
| Island West Coast Developments Ltd. | 4.0★ (12) | In Nanaimo |
| JWN Mechanical Inc. | 5.0★ (53) | In Nanaimo |
| LGReeves Contracting | 5.0★ (9) | In Nanaimo |
| MH Contracting | 5.0★ (23) | In Nanaimo |
| Nanaimo Seamless | 4.4★ (13) | In Nanaimo |
| Pheasant Hill Homes Ltd | 4.5★ (11) | In Nanaimo |
| Roof Pro the Rain Stoppers | 4.7★ (26) | In Nanaimo |
| STF Contracting Inc - Nanaimo | 4.8★ (15) | In Nanaimo |
| The Comfort Group Heating Co | 4.8★ (1,244) | In Nanaimo |
| WINMAR Property Restoration Specialists - Nanaimo | 4.2★ (17) | In Nanaimo |
How much do foundation repair companies cost in Nanaimo?
US national ranges converted to CAD, not adjusted for Nanaimo. 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 Nanaimo foundation repair companies
We scored 25 Nanaimo 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 Nanaimo 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 Nanaimo: frequently asked questions
Who is the best foundation repair company in Nanaimo?
By CR Score, the highest-ranked foundation repair company in Nanaimo, BC is Island Basement Systems with a CR Score of 56/100. It has 4.4★ from 34 Google reviews. Casa Sundecks Ltd. (#2) and Cardinal Roofing and Waterproofing ltd (#3) follow. We ranked 25 foundation repair companies on ten factors, last updated October 22, 2026.
How many foundation repair companies are there in Nanaimo?
ContractorsRanked ranks 25 foundation repair companies serving Nanaimo, BC. 6 of them are based in Nanaimo; 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 Nanaimo are open 24/7?
6 ranked foundation repair companies in Nanaimo post 24/7 hours. The highest-ranked are Cardinal Roofing and Waterproofing ltd (#3), GVRD Roofing Inc. (#5) and Heritage Chimney Restoration (#11). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which foundation repair companies in Nanaimo work on weekends?
17 of 25 ranked foundation repair companies post Saturday hours and 11 post Sunday hours. The highest-ranked open Saturdays are Casa Sundecks Ltd. (#2), Cardinal Roofing and Waterproofing ltd (#3) and LayCon Ltd Concrete Foundations (#4). Posted hours are office hours; crews may book weekend jobs separately.
How much does foundation repair cost in Nanaimo?
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 Nanaimo. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Nanaimo foundation repair companies have?
The median Google rating among 25 rated foundation repair companies in Nanaimo is 5.0★, with a median of 10 reviews. GVRD Roofing Inc. has the most, 108 reviews, and ranks #5. 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 Nanaimo count in this ranking?
Yes, if they are within 64 km of the Nanaimo 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 Nanaimo
- October 2026: CR Scores recalculated for 25 foundation repair companies serving Nanaimo.
More foundation repair companies and Nanaimo pages
Foundation repair companies near Nanaimo
- Foundation repair companies in Ladysmith, BC30 ranked
- Foundation repair companies in Parksville, BC9 ranked
- Foundation repair companies in Sechelt, BC40 ranked
- Foundation repair companies in Gibsons, BC71 ranked
- Foundation repair companies in North Cowichan, BC34 ranked
- Foundation repair companies in Duncan, BC21 ranked
- Foundation repair companies in Ganges, BC64 ranked
- Foundation repair companies in Salt Spring Island, BC58 ranked
- Foundation repair companies in Richmond, BC87 ranked
- Foundation repair companies in West End, BC85 ranked
Other trades in Nanaimo
- Roofers in Nanaimo140 ranked
- Plumbers in Nanaimo91 ranked
- Electricians in Nanaimo42 ranked
- HVAC contractors in Nanaimo73 ranked
- General contractors in Nanaimo85 ranked
- Painters in Nanaimo48 ranked
- Landscapers in Nanaimo60 ranked
- Handymen in Nanaimo17 ranked
- Kitchen remodelers in Nanaimo47 ranked
- Bathroom remodelers in Nanaimo45 ranked
- Flooring contractors in Nanaimo34 ranked
- Tile installers in Nanaimo15 ranked
- Drywall contractors in Nanaimo8 ranked
- Concrete contractors in Nanaimo27 ranked
- Fence contractors in Nanaimo30 ranked
- Deck builders in Nanaimo31 ranked
- Siding contractors in Nanaimo53 ranked
- Window installers in Nanaimo75 ranked
- Gutter installers in Nanaimo59 ranked
- Insulation contractors in Nanaimo14 ranked
- Solar installers in Nanaimo33 ranked
- Garage door repair companies in Nanaimo8 ranked
- Tree services in Nanaimo47 ranked
- Masonry contractors in Nanaimo18 ranked
- Water damage restoration companies in Nanaimo86 ranked
- Home builders in Nanaimo222 ranked
- Demolition contractors in Nanaimo21 ranked
- All contractors in Nanaimo