73 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Bluewater: JM Roof Company, CR Score 94/100; 5.0★ from 228 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): M&J contracting, posts 24/7 hours; ranked #2 of 73.
Most-reviewed: Aok Roofing Inc., 230 Google reviews at 4.9★, the most of 73 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
73 Bluewater roofers are ranked here by CR Score, from 8 published factors. 11 are open 24/7, 42 open Saturdays and 28 open Sundays, based on posted hours. The median Google rating is 4.8★ across 73 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | JM Roof Company | 94 | 5.0★ (228) | Bluewater | Sat · Sun | Overall |
| 2 | M&J contracting | 89 | 4.3★ (42) | Bluewater | 24/7 | Emergencies |
| 3 | Aok Roofing Inc. | 87 | 4.9★ (230) | London, 53 km away | 24/7 | Most reviews |
| 4 | Southwinds Roofing | 85 | 4.7★ (71) | London, 63 km away | 24/7 | — |
| 5 | North London Roofing | 85 | 4.5★ (98) | London, 60 km away | 24/7 | — |
| 6 | Great North Construction INC | 85 | 5.0★ (38) | Bluewater | Sat | — |
| 7 | Goliath Roofing - Roofing, Siding and Eavestroughs | 85 | 4.8★ (180) | Bluewater | — | — |
| 8 | Glavin Eavestroughing Ltd | 85 | 5.0★ (11) | Bluewater | — | — |
| 9 | Shockwave Roofing | 85 | 5.0★ (96) | London, 62 km away | Sat · Sun | — |
| 10 | Humble Roofing & Renovations inc. | 83 | 4.7★ (77) | London, 57 km away | Sat · Sun · Evenings | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 228 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluewater
Ranked #2 because of its Google rating and availability: 4.3★ from 42 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 53 km away
Ranked #3 because of its Google rating and review volume: 4.9★ from 230 Google reviews, the most Google reviews on this list (230).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 63 km away
Ranked #4 because of its Google rating and availability: 4.7★ from 71 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 60 km away
Ranked #5 because of its Google rating and availability: 4.5★ from 98 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluewater
Ranked #6 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluewater
Ranked #7 because of its Google rating and trade focus: 4.8★ from 180 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluewater
Ranked #8 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Roofing contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in London, 62 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 96 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 57 km away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 77 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 60 km away
Ranked #11 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 60 km away
Ranked #12 because of its Google rating and availability: 4.6★ from 19 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 56 km away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 131 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Huron East, 61 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluewater
Ranked #15 because of its Google rating and trade focus: 5.0★ from 17 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 61 km away
Ranked #16 because of its Google rating and availability: 4.7★ from 12 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Huron East, 61 km away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 28 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 54 km away
Ranked #18 because of its Google rating and trade focus: 4.4★ from 34 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 54 km away
Ranked #19 because of its Google rating and trade focus: 4.7★ from 35 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Huron East, 57 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Huron East, 23 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 16 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Bluewater
Ranked #22 because of its Google rating and trade focus: 4.8★ from 27 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 58 km away
Ranked #23 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 62 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in London, 64 km away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Roofing contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#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 73 ranked roofers here; the rest are on their profiles.
20 more roofers 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 |
|---|---|---|
| Bayfield Contracting | 4.3★ (4) | In Bluewater |
| Best Finish Epoxy Design Inc. | 4.8★ (26) | In Bluewater |
| Bluewater Fence and Deck | 5.0★ (8) | In Bluewater |
| Bob Case Plumbing Electric Heating & Air Conditioning | 5.0★ (8) | In Bluewater |
| Clearcut Construction | 2.7★ (3) | In Bluewater |
| Complete Junk Removal And Demolition | 4.9★ (57) | In Bluewater |
| Dahlia Contracting & Design Inc. | 5.0★ (6) | In Bluewater |
| G & N Roofing & Snowplowing | 4.0★ (4) | 53 km |
| Gold Coast Landscaping Inc | 4.3★ (29) | In Bluewater |
| Harmsway Construction | 5.0★ (3) | In Bluewater |
| Huron Contractors Ltd | 5.0★ (2) | In Bluewater |
| Iron Exteriors | 5.0★ (3) | In Bluewater |
| Joe Durand Construction | 4.5★ (2) | In Bluewater |
| Keller Roofing & Sheet Metal | 3.1★ (7) | In Bluewater |
| Northlander Industries | 4.3★ (72) | In Bluewater |
| Oke Woodsmith Building Systems Inc | 5.0★ (7) | In Bluewater |
| Paul Davis Huron-Perth | 4.9★ (18) | In Bluewater |
| Professional Choice Renovations | 3.7★ (3) | 52 km |
| R.J.S Masonry | 5.0★ (7) | In Bluewater |
| Southwest Dust Control | 5.0★ (5) | In Bluewater |
US national ranges converted to CAD, not adjusted for Bluewater. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Roof replacement | CA$10,540 | CA$14,050 | CA$19,680 | Per project: asphalt shingles on a 1,700 sq ft home (about 2,000 sq ft of roof). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Roof repair | CA$560 | CA$1,650 | CA$2,770 | Per repair: typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
In Ontario, roofers are busiest from late spring to early fall, when shingles can be installed in mild, dry weather. After a big storm, get more than one quote and check the license or registration before signing.
We scored 73 Bluewater roofers 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 Bluewater 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 |