787 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ajax: SMS Contractors, CR Score 90/100; 5.0★ from 66 Google reviews; open 24/7.
Best for emergencies (open 24/7): MB Home Reno, posts 24/7 hours; ranked #3 of 787.
Most-reviewed: Spray-Net Toronto, 156 Google reviews at 5.0★, the most of 787 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
787 Ajax general contractors are ranked here by CR Score, from 8 published factors. 68 are open 24/7, 469 open Saturdays and 198 open Sundays, based on posted hours. The median Google rating is 5.0★ across 787 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | SMS Contractors | 90 | 5.0★ (66) | Scarborough, 27 km away | 24/7 | Overall |
| 2 | Handy Birds Services | 89 | 5.0★ (127) | Markham, 20 km away | Sat · Sun · Evenings | — |
| 3 | MB Home Reno | 89 | 5.0★ (85) | Richmond Hill, 34 km away | 24/7 | Emergencies |
| 4 | Spray-Net Toronto | 89 | 5.0★ (156) | Toronto, 27 km away | Sat · Sun · Evenings | Most reviews |
| 5 | Tradecon Services | 89 | 5.0★ (25) | King, 13 km away | 24/7 | — |
| 6 | Get Reno | 89 | 4.3★ (36) | Pickering, 4 km away | 24/7 | — |
| 7 | Allen's Renovations Inc | 89 | 5.0★ (34) | Ajax | Sat · Sun · Evenings | — |
| 8 | Infovision Construction | 89 | 4.9★ (62) | Ajax | Sat · Sun · Evenings | — |
| 9 | Ingenious Contracting | 88 | 4.8★ (19) | Pickering, 9 km away | 24/7 | — |
| 10 | Phillips Contracting & Renovation | 88 | 4.9★ (9) | Ajax | 24/7 | — |
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 availability: 5.0★ from 66 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 20 km away
Ranked #2 because of its Google rating and trade focus: 5.0★ from 127 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Richmond Hill, 34 km away
Ranked #3 because of its Google rating and availability: 5.0★ from 85 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Toronto, 27 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 156 Google reviews, listed on Google as “Contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in King, 13 km away
Ranked #5 because of its Google rating and availability: 5.0★ from 25 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pickering, 4 km away
Ranked #6 because of its Google rating and availability: 4.3★ from 36 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #7 because of its Google rating and trade focus: 5.0★ from 34 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #8 because of its Google rating and trade focus: 4.9★ from 62 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pickering, 9 km away
Ranked #9 because of its Google rating and availability: 4.8★ from 19 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #10 because of its Google rating and availability: 4.9★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #11 because of its Google rating and availability: 4.4★ from 27 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshawa, 14 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “Contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #13 because of its Google rating and availability: 4.4★ from 12 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Scarborough, 21 km away
Ranked #14 because of its Google rating and availability: 4.8★ from 34 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 20 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 69 Google reviews, listed on Google as “Contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Scarborough, 13 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 48 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Toronto, 29 km away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 111 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Vaughan, 22 km away
Ranked #18 because of its Google rating and availability: 5.0★ from 24 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 23 km away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 110 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Scarborough, 26 km away
Ranked #20 because of its Google rating and availability: 4.9★ from 33 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 21 km away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 53 Google reviews, listed on Google as “Construction company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Ajax
Ranked #22 because of its Google rating and trade focus: 5.0★ from 57 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #23 because of its Google rating and trade focus: 5.0★ from 61 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #24 because of its Google rating and availability: 3.9★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pickering, 8 km away
Ranked #25 because of its Google rating and availability: 4.5★ from 10 Google reviews, open 24/7.
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 787 ranked general contractors here; the rest are on their profiles.
20 more general contractors within 40 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 |
|---|---|---|
| C.D. Roofing & Construction Ltd. | 4.7★ (77) | In Ajax |
| Direct Waterproofing Pickering | 5.0★ (47) | In Ajax |
| Durham Region Handyman | 5.0★ (49) | In Ajax |
| Durham Siding | 4.6★ (53) | In Ajax |
| Expo Roofing Repairs | 5.0★ (103) | In Ajax |
| Faith In Construction | 5.0★ (100) | In Ajax |
| Finest Painters | 5.0★ (221) | In Ajax |
| Fix Plumbing | 4.9★ (73) | In Ajax |
| Floor and Bath Design | 4.6★ (47) | In Ajax |
| Hatco HVAC | 4.9★ (53) | In Ajax |
| HH renovation & general contracting | 4.9★ (130) | In Ajax |
| Mega City Roofing Inc | 5.0★ (105) | In Ajax |
| Michael Durham Landscaping | 4.4★ (110) | In Ajax |
| New Well Plumbing & Heating | 4.7★ (123) | In Ajax |
| Paul Davis Durham East & West | 4.8★ (252) | In Ajax |
| RAEM Electric INC | 5.0★ (158) | In Ajax |
| Trust My Handyman Renovation & Improvement services | 4.9★ (63) | In Ajax |
| V Star Renovation | 4.6★ (62) | In Ajax |
| Walchuk Heating and Cooling | 5.0★ (109) | In Ajax |
| Whyte Castle Construction Corporation | 4.7★ (86) | 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 |
|---|---|---|---|---|---|
| Kitchen remodel | CA$20,510 | CA$37,930 | CA$58,490 | Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Bathroom remodel | CA$9,350 | CA$17,080 | CA$24,820 | Per bathroom: typical range of customer-reported remodels. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 787 Ajax general contractors 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 Ajax 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 |