174 siding contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ajax: GEXR Extreme Exteriors, CR Score 64/100; 5.0★ from 76 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Home Doctor, posts 24/7 hours; ranked #2 of 174.
Most-reviewed: Mr. Handyman of Toronto N, Richmond Hill, Markham W., 358 Google reviews at 4.7★, the most of 174 ranked; ranked #39.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
174 Ajax siding contractors are ranked here by CR Score, from ten published factors. 27 are open 24/7, 120 open Saturdays and 62 open Sundays, based on posted hours. The median Google rating is 5.0★ across 174 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | GEXR Extreme Exteriors | 64 | 5.0★ (76) | Ajax | Sat · Sun · Evenings | Overall |
| 2 | Home Doctor | 63 | 4.8★ (51) | Pickering, 5 km away | 24/7 | Emergencies |
| 3 | Branova Siding Installation & Repair Toronto | 63 | 5.0★ (181) | Toronto, 25 km away | 24/7 | — |
| 4 | Colin's Roofing & Eavestrough Inc. | 62 | 4.9★ (92) | Oshawa, 14 km away | Sat · Sun · Evenings | — |
| 5 | Windmill Roofing & Exteriors | 62 | 5.0★ (41) | Ajax | Sat · Sun · Evenings | — |
| 6 | Master Siyuan Gutter & Aluminum Corp. | 62 | 5.0★ (39) | Ajax | Sat · Sun · Evenings | — |
| 7 | 1-855-wanna-reno | 62 | 4.9★ (41) | Ajax | Sat · Sun · Evenings | — |
| 8 | Infinity Gutters & Exteriors | 61 | 4.9★ (86) | North York, 36 km away | 24/7 | — |
| 9 | HomeVision Roofing & Siding | 61 | 5.0★ (243) | Mississauga, 51 km away | 24/7 | — |
| 10 | Silverhill Roofing & Contracting ~ Toronto | 61 | 5.0★ (114) | Markham, 37 km away | Sat · Sun · Evenings | — |
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: 5.0★ from 76 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Pickering, 5 km away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 51 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 25 km away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 181 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oshawa, 14 km away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 92 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #5 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #6 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #7 because of its Google rating and trade focus: 4.9★ from 41 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in North York, 36 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 86 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 51 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 243 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Markham, 37 km away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 114 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vaughan, 41 km away
Ranked #11 because of its Google rating and trade focus: 4.9★ from 320 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 47 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 292 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East Gwillimbury, 29 km away
Ranked #13 because of its Google rating and trade focus: 4.8★ from 42 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Vaughan, 41 km away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 121 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Richmond Hill, 32 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 71 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Brampton, 31 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oshawa, 15 km away
Ranked #17 because of its Google rating and trade focus: 4.7★ from 72 Google reviews, listed on Google as “Siding contractor”.
Based on 7 of 10 factors; credentials, recency and availability not yet collected.
Based in Ajax
Ranked #18 because of its Google rating and review volume: 5.0★ from 105 Google reviews.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Mississauga, 54 km away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 114 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in East York, 31 km away
Ranked #20 because of its Google rating and trade focus: 4.5★ from 26 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Etobicoke, 44 km away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #22 because of its Google rating and trade focus: 4.6★ from 53 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Willowdale, 51 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 46 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Toronto, 47 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 81 Google reviews, listed on Google as “Siding contractor”.
Based on 8 of 10 factors; credentials and recency not yet collected.
Based in Oshawa, 16 km away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 29 Google reviews, listed on Google as “Siding 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 174 ranked siding contractors here; the rest are on their profiles.
20 more siding contractors 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 |
|---|---|---|
| AKMA Design & Build | 5.0★ (57) | In Ajax |
| Durham Region Roofing | 5.0★ (46) | In Ajax |
| Expo Roofing Repairs | 5.0★ (103) | In Ajax |
| Happy Home | 5.0★ (59) | In Ajax |
| HH renovation & general contracting | 4.9★ (130) | In Ajax |
| Jarvis Contracting Inc. | 5.0★ (24) | In Ajax |
| Level Q Renovation & Design Inc. | 5.0★ (37) | In Ajax |
| Limestone Construction and Excavating | 5.0★ (26) | In Ajax |
| Manalco Contracting Ltd. | 4.2★ (26) | In Ajax |
| Marleau's Action Maintenance | 5.0★ (193) | In Ajax |
| Norris Roofing | 4.8★ (103) | In Ajax |
| O&A Home Maintenance | 4.8★ (136) | In Ajax |
| Paintify Ajax Painting | 5.0★ (32) | In Ajax |
| Soogrim Home Solutions INC. | 5.0★ (26) | In Ajax |
| The Roof Whisperer of Ajax - Roof Repair & Skylight Contractor | 5.0★ (51) | In Ajax |
| The Roof Whisperer of Pickering - Roof Repair & Skylight Contractor | 5.0★ (56) | In Ajax |
| The Roof Whisperer of Whitby - Roof Repair & Skylight Contractor | 5.0★ (65) | In Ajax |
| Toronto Roofing Repair | 5.0★ (160) | In Ajax |
| Unparalleled Paint | 4.8★ (93) | In Ajax |
| Whitby Tile | 4.8★ (146) | 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 |
|---|---|---|---|---|---|
| Siding replacement | CA$7,810 | CA$16,290 | CA$24,910 | Per house: typical range of customer-reported projects. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 174 Ajax siding contractors 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 |