Top 50 of 401 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank
25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.
#1 for emergency heating and cooling in Uxbridge: Enercare, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Enercare | 62 | 4.9★ (8,942) | Oshawa, 32 km away | 24/7 |
| 2 | Reliance Heating, Air Conditioning & Plumbing | 62 | 4.9★ (10,870) | Richmond Hill, 36 km away | 24/7 |
| 3 | Marx Mechanical Heating and Cooling | 62 | 4.9★ (115) | Uxbridge | 24/7 |
| 4 | Reliance Heating, Air Conditioning & Plumbing | 61 | 4.8★ (6,966) | Oshawa, 33 km away | 24/7 |
| 5 | Limcan Certified Heating and Air Conditioning | 61 | 4.8★ (2,979) | Ajax, 30 km away | 24/7 |
| 6 | Therwood Heating and Cooling | 61 | 4.8★ (62) | Uxbridge | 24/7 |
| 7 | Enercare | 60 | 4.8★ (1,563) | East Gwillimbury, 27 km away | 24/7 |
| 8 | Summers and Smith Cooling & Heating Limited | 60 | 4.9★ (1,559) | Aurora, 30 km away | 24/7 |
| 9 | Button's Heating & Air Conditioning | 60 | 4.9★ (1,570) | Pickering, 31 km away | 24/7 |
| 10 | Reliance Heating, Air Conditioning & Plumbing | 60 | 4.7★ (9,158) | North York, 40 km away | 24/7 |
24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.
#1Enercare
Open 24/7 · 4.9 from 8,942 Google reviews
#2Reliance Heating, Air Conditioning & Plumbing
Open 24/7 · 4.9 from 10,870 Google reviews
#3Marx Mechanical Heating and Cooling
Open 24/7 · 4.9 from 115 Google reviews
#4Reliance Heating, Air Conditioning & Plumbing
Open 24/7 · 4.8 from 6,966 Google reviews
#5Limcan Certified Heating and Air Conditioning
Open 24/7 · 4.8 from 2,979 Google reviews
#6Therwood Heating and Cooling
Open 24/7 · 4.8 from 62 Google reviews
#7Enercare
Open 24/7 · 4.8 from 1,563 Google reviews
#8Summers and Smith Cooling & Heating Limited
Open 24/7 · 4.9 from 1,559 Google reviews
24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 401 is on the HVAC contractors page.
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: 4.9★ from 8,942 Google reviews, listed on Google as “HVAC contractor”.
Based in Richmond Hill, 36 km away
Ranked #2 because of its Google rating and trade focus: 4.9★ from 10,870 Google reviews, listed on Google as “HVAC contractor”.
Based in Uxbridge
Ranked #3 because of its Google rating and trade focus: 4.9★ from 115 Google reviews, listed on Google as “HVAC contractor”.
Based in Oshawa, 33 km away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 6,966 Google reviews, listed on Google as “HVAC contractor”.
Based in Ajax, 30 km away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 2,979 Google reviews, listed on Google as “HVAC contractor”.
Based in Uxbridge
Ranked #6 because of its Google rating and trade focus: 4.8★ from 62 Google reviews, listed on Google as “HVAC contractor”.
Based in East Gwillimbury, 27 km away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 1,563 Google reviews, listed on Google as “HVAC contractor”.
Based in Aurora, 30 km away
Ranked #8 because of its Google rating and trade focus: 4.9★ from 1,559 Google reviews, listed on Google as “HVAC contractor”.
Based in Pickering, 31 km away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,570 Google reviews, listed on Google as “HVAC contractor”.
Based in North York, 40 km away
Ranked #10 because of its Google rating and trade focus: 4.7★ from 9,158 Google reviews, listed on Google as “HVAC contractor”.
Based in North York, 40 km away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 6,512 Google reviews, listed on Google as “HVAC contractor”.
Based in Uxbridge
Ranked #12 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based in Pickering, 31 km away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 1,230 Google reviews, listed on Google as “HVAC contractor”.
Based in Scarborough, 37 km away
Ranked #14 because of its Google rating and trade focus: 4.8★ from 3,715 Google reviews, listed on Google as “HVAC contractor”.
Based in Ajax, 25 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 441 Google reviews, listed on Google as “HVAC contractor”.
Based in Ajax, 37 km away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 2,085 Google reviews, listed on Google as “HVAC contractor”.
Based in Markham, 34 km away
Ranked #17 because of its Google rating and trade focus: 4.8★ from 1,319 Google reviews, listed on Google as “HVAC contractor”.
Based in East Gwillimbury, 17 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 86 Google reviews, listed on Google as “HVAC contractor”.
Based in Markham, 35 km away
Ranked #19 because of its Google rating and trade focus: 4.9★ from 836 Google reviews, listed on Google as “HVAC contractor”.
Based in Oshawa, 32 km away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 708 Google reviews, listed on Google as “HVAC contractor”.
Based in East Gwillimbury, 30 km away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 532 Google reviews, listed on Google as “HVAC contractor”.
Based in Oshawa, 33 km away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 512 Google reviews, listed on Google as “HVAC contractor”.
Based in Newmarket, 25 km away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 181 Google reviews, listed on Google as “HVAC contractor”.
Based in Ajax, 32 km away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 417 Google reviews, listed on Google as “HVAC contractor”.
Based in Ajax, 29 km away
Ranked #25 because of its Google rating and trade focus: 4.8★ from 327 Google reviews, listed on Google as “Air conditioning contractor”.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.
Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.
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 |
|---|---|---|
| Reputation | 15% | Google star rating, adjusted for how many reviews back it |
| Credentials | 15% | Active state license, bond and workers’ comp on file |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list |
| Recency | 5% | Share of reviews from the last 12 months |
| Availability | 15% | Weekly open hours, Saturday, Sunday, 24/7 or same-day |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) |
| Proximity | 5% | Based in the city scores highest, less the farther away it is |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are |