568 roofers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Alliston: Ainger Group Roofing and Exteriors, CR Score 65/100; 4.9★ from 476 Google reviews; open 24/7.
Best for emergencies (open 24/7): RonOvations, posts 24/7 hours; ranked #2 of 568.
Most-reviewed: Taminka Metal Roofing, 625 Google reviews at 5.0★, the most of 568 ranked; ranked #18.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
568 Alliston roofers are ranked here by CR Score, from ten published factors. 135 are open 24/7, 422 open Saturdays and 315 open Sundays, based on posted hours. The median Google rating is 4.9★ across 568 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Ainger Group Roofing and Exteriors | 65 | 4.9★ (476) | Barrie, 31 km away | 24/7 | Overall |
| 2 | RonOvations | 62 | 4.9★ (97) | Angus, 19 km away | 24/7 | Emergencies |
| 3 | JN Roofing and Contracting | 62 | 4.8★ (172) | Barrie, 28 km away | 24/7 | — |
| 4 | All Season Roofing, Orangeville: Roof Repair and maintenance | 62 | 5.0★ (267) | Orangeville, 31 km away | Sat · Sun | — |
| 5 | C Plus Roofing | 62 | 4.9★ (573) | Markham, 60 km away | 24/7 | — |
| 6 | Strong Arm Roofing | 62 | 4.7★ (46) | Alliston | 24/7 | — |
| 7 | Ainger Group Roofing and Exteriors | 62 | 4.8★ (317) | Collingwood, 46 km away | 24/7 | — |
| 8 | D.C United Roofing | 62 | 4.8★ (151) | Barrie, 32 km away | 24/7 | — |
| 9 | Real Blue Roofing Services Inc. | 61 | 5.0★ (124) | Barrie, 25 km away | Sat · Sun · Evenings | — |
| 10 | Peak Performance Roofing & Exteriors | 61 | 4.6★ (47) | Barrie, 6 km away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 476 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Angus, 19 km away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 97 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 28 km away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 172 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Orangeville, 31 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 267 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Markham, 60 km away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 573 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Alliston
Ranked #6 because of its Google rating and trade focus: 4.7★ from 46 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Collingwood, 46 km away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 317 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 32 km away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 151 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 25 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 124 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 6 km away
Ranked #10 because of its Google rating and trade focus: 4.6★ from 47 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Burlington, 50 km away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 224 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Gwillimbury, 31 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 122 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Gwillimbury, 22 km away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 50 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Richmond Hill, 43 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 89 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brampton, 51 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 161 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Markham, 54 km away
Ranked #16 because of its Google rating and trade focus: 4.9★ from 192 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 20 km away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 78 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 60 km away
Ranked #18 because of its Google rating and review volume: 5.0★ from 625 Google reviews, the most in Alliston.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in North York, 59 km away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 212 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Gwillimbury, 44 km away
Ranked #20 because of its Google rating and trade focus: 5.0★ from 180 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 33 km away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 60 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Newmarket, 34 km away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 61 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Richmond Hill, 45 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 173 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Barrie, 27 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Angus, 19 km away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 60 Google reviews, listed on Google as “Roofing contractor”.
Based on 8 of 10 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 568 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 |
|---|---|---|
| Brightside Technical Services | 5.0★ (9) | In Alliston |
| Complete Property Maintenance | 5.0★ (64) | In Alliston |
| D'Angelo and Sons | Eavestrough and Roofing Vaughan | 4.9★ (33) | 42 km |
| Divine roofing inc | 5.0★ (43) | 53 km |
| Good Choice Roofing Inc | 4.6★ (19) | 44 km |
| Hoppie Landscaping | 5.0★ (5) | In Alliston |
| INTERLINK ROOFING | 5.0★ (26) | 53 km |
| Kraly Construction | 5.0★ (13) | In Alliston |
| Local Roofing Services | 5.0★ (68) | 60 km |
| Marco's Roofing | 4.8★ (58) | 60 km |
| New Age Roofing & Contracting | 4.1★ (13) | 19 km |
| New Tec Kitchen and Beyond Inc. | 4.9★ (29) | In Alliston |
| Peter Rock Concrete | 5.0★ (35) | In Alliston |
| Previn Court Homes | 4.6★ (20) | In Alliston |
| ROOF FOR LIFE INC. | 4.8★ (82) | 58 km |
| Roof.to | 4.9★ (49) | 53 km |
| Sasquatch Roofing | 5.0★ (12) | 32 km |
| Strong's Septic Service Inc | 4.4★ (21) | In Alliston |
| Swan Roofing Services | 4.8★ (39) | 51 km |
| Tamarack Landscape Contracting Ltd | 4.5★ (6) | In Alliston |
US national ranges converted to CAD, not adjusted for Alliston. 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 568 Alliston 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 Alliston 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 |