675 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ajax: Wilson Roofing, CR Score 67/100; 5.0★ from 518 Google reviews; open 24/7.
Best for emergencies (open 24/7): C Plus Roofing, posts 24/7 hours; ranked #2 of 675.
Most-reviewed: Taminka Metal Roofing, 625 Google reviews at 5.0★, the most of 675 ranked; ranked #46.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
675 Ajax roofers are ranked here by CR Score, from ten published factors. 169 are open 24/7, 520 open Saturdays and 390 open Sundays, based on posted hours. The median Google rating is 4.9★ across 675 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Wilson Roofing | 67 | 5.0★ (518) | Oshawa, 13 km away | 24/7 | Overall |
| 2 | C Plus Roofing | 66 | 4.9★ (573) | Markham, 17 km away | 24/7 | Emergencies |
| 3 | Toronto Roofing Repair | 66 | 5.0★ (160) | Ajax | 24/7 | — |
| 4 | HH renovation & general contracting | 65 | 4.9★ (130) | Ajax | 24/7 | — |
| 5 | Mega City Roofing Inc | 65 | 5.0★ (105) | Ajax | Sat · Sun · Emergency | — |
| 6 | Metro Roofing | 64 | 4.9★ (98) | Ajax | 24/7 | — |
| 7 | Toronto Master Roofing | 64 | 5.0★ (77) | Ajax | 24/7 | — |
| 8 | Top Art Roofing Ltd | 64 | 4.9★ (192) | Markham, 22 km away | 24/7 | — |
| 9 | Alpine Roofing | 62 | 4.5★ (574) | Toronto, 33 km away | 24/7 | — |
| 10 | BNS Roofing | 62 | 4.9★ (135) | North York, 26 km away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 518 Google reviews, listed on Google as “Roofing contractor”.
Based in Markham, 17 km away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 573 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #3 because of its Google rating and trade focus: 5.0★ from 160 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #4 because of its Google rating and trade focus: 4.9★ from 130 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #5 because of its Google rating and trade focus: 5.0★ from 105 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #6 because of its Google rating and trade focus: 4.9★ from 98 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #7 because of its Google rating and trade focus: 5.0★ from 77 Google reviews, listed on Google as “Roofing contractor”.
Based in Markham, 22 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 192 Google reviews, listed on Google as “Roofing contractor”.
Based in Toronto, 33 km away
Ranked #9 because of its Google rating and trade focus: 4.5★ from 574 Google reviews, listed on Google as “Roofing contractor”.
Based in North York, 26 km away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 135 Google reviews, listed on Google as “Roofing contractor”.
Based in Pickering, 5 km away
Ranked #11 because of its Google rating and trade focus: 5.0★ from 40 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #12 because of its Google rating and trade focus: 5.0★ from 65 Google reviews, listed on Google as “Roofing contractor”.
Based in North York, 39 km away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 212 Google reviews, listed on Google as “Roofing contractor”.
Based in Scarborough, 19 km away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 80 Google reviews, listed on Google as “Roofing contractor”.
Based in Scarborough, 19 km away
Ranked #15 because of its Google rating and trade focus: 4.8★ from 216 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #16 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Roofing contractor”.
Based in Scarborough, 19 km away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 344 Google reviews, listed on Google as “Roofing contractor”.
Based in Scarborough, 22 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 68 Google reviews, listed on Google as “Roofing contractor”.
Based in Oshawa, 19 km away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 149 Google reviews, listed on Google as “Roofing contractor”.
Based in Cobourg, 8 km away
Ranked #20 because of its Google rating and trade focus: 4.9★ from 41 Google reviews, listed on Google as “Roofing contractor”.
Based in Burlington, 39 km away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 224 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #22 because of its Google rating and trade focus: 5.0★ from 51 Google reviews, listed on Google as “Roofing contractor”.
Based in Markham, 19 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 119 Google reviews, listed on Google as “Roofing contractor”.
Based in Ajax
Ranked #24 because of its Google rating and trade focus: 5.0★ from 103 Google reviews, listed on Google as “Roofing contractor”.
Based in Scarborough, 12 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Roofing contractor”.
#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 675 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 |
|---|---|---|
| Advance custom roofing | 5.0★ (6) | In Ajax |
| Allen's Renovations Inc | 5.0★ (34) | In Ajax |
| Boss Roofing | 3.7★ (12) | In Ajax |
| Climate Experts Heating & Cooling Inc. | 4.9★ (441) | In Ajax |
| EMR Renovation Services | 5.0★ (102) | 54 km |
| Fyfe's Roofing | 4.9★ (31) | 16 km |
| Gray's Deck & Fence | 5.0★ (33) | In Ajax |
| Hatco HVAC | 4.9★ (53) | In Ajax |
| Hawk Home Services - HVAC Contractors Durham | 4.7★ (61) | In Ajax |
| INTERLINK ROOFING | 5.0★ (26) | 22 km |
| Just 4 You Home Solutions | 4.9★ (161) | 58 km |
| Level Q Renovation & Design Inc. | 5.0★ (37) | In Ajax |
| PLUMBER ON DEMAND of AJAX-PICKERING, ON | 4.7★ (183) | In Ajax |
| Premier Masonry Inc | 4.9★ (39) | In Ajax |
| Rain Safe Roofing | 5.0★ (124) | 57 km |
| Roofing Repairs Company | 4.9★ (38) | 21 km |
| Skytop Roofing & Contracting Corp. | 4.9★ (133) | 60 km |
| Ultra Renovations Inc - Ajax | 5.0★ (29) | In Ajax |
| Ultra Roofing | 4.2★ (21) | In Ajax |
| Urbantop roofing | 4.7★ (12) | In Ajax |
US national ranges converted to CAD, not adjusted for Ajax. 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 675 Ajax roofers 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 Ajax 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 |