65/100CR Score
Ranked #1 because of its Google rating and trade focus: 4.8★ from 1,563 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,563 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Emergency HVAC Contractors in East Gwillimbury, ON (2026)
Top 50 of 549 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.
If you smell gas, leave the building now and call your gas utility or 911 from outside.
The short answer
- 1
#1 for emergency heating and cooling in East Gwillimbury: Enercare, open 24/7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
Top emergency HVAC contractors in East Gwillimbury at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours |
|---|---|---|---|---|---|
| 1 | Enercare | 65 | 4.8★ (1,563) | East Gwillimbury | 24/7 |
| 2 | Black Forest | 63 | 4.8★ (532) | East Gwillimbury | 24/7 |
| 3 | Summers and Smith Cooling & Heating Limited | 63 | 4.9★ (1,559) | Aurora, 11 km away | 24/7 |
| 4 | Reliance Heating, Air Conditioning & Plumbing | 63 | 4.9★ (10,870) | Richmond Hill, 29 km away | 24/7 |
| 5 | Infiniti Air Conditioning & Heating | 62 | 4.9★ (181) | Newmarket, 4 km away | 24/7 |
| 6 | Enercare | 62 | 4.9★ (9,609) | Vaughan, 36 km away | 24/7 |
| 7 | Alper Heating and Cooling inc | 62 | 5.0★ (86) | East Gwillimbury | 24/7 |
| 8 | Reliance Yanch Heating, Air Conditioning & Plumbing | 62 | 4.8★ (5,937) | Barrie, 31 km away | 24/7 |
| 9 | Ambient Air Systems | 61 | 4.8★ (113) | East Gwillimbury | 24/7 |
| 10 | Affordable Comfort | 61 | 4.9★ (2,540) | Barrie, 32 km away | 24/7 |
Call an emergency HVAC contractor in East Gwillimbury now
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.
- #1Call (705) 304-4930
#1Enercare
Open 24/7 · 4.8 from 1,563 Google reviews
- #2Call (905) 252-9994
Open 24/7 · 4.8 from 532 Google reviews
- #3Call (905) 727-2323
#3Summers and Smith Cooling & Heating Limited
Open 24/7 · 4.9 from 1,559 Google reviews
- #4Call (844) 626-7652
#4Reliance Heating, Air Conditioning & Plumbing
Open 24/7 · 4.9 from 10,870 Google reviews
- #5Call (833) 444-7887
#5Infiniti Air Conditioning & Heating
Open 24/7 · 4.9 from 181 Google reviews
- #6Call (905) 266-0219
#6Enercare
Open 24/7 · 4.9 from 9,609 Google reviews
- #7Call (647) 771-9495
#7Alper Heating and Cooling inc
Open 24/7 · 5.0 from 86 Google reviews
- #8Call (844) 526-7679
#8Reliance Yanch Heating, Air Conditioning & Plumbing
Open 24/7 · 4.8 from 5,937 Google reviews
The 50 emergency HVAC contractors in East Gwillimbury, ranked
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 549 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.
#2 Black Forest
Based in East Gwillimbury
63/100CR ScoreRanked #2 because of its Google rating and trade focus: 4.8★ from 532 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 532 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 16 Mt Albert Rd, East Gwillimbury, ON L9N 1K4
Based in Aurora, 11 km away
63/100CR ScoreRanked #3 because of its Google rating and trade focus: 4.9★ from 1,559 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 1,559 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 55 Industrial Pkwy S, Aurora, ON L4G 3Y5
Based in Richmond Hill, 29 km away
63/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.9★ from 10,870 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 10,870 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 200 West Beaver Creek Rd Unit 1-7, Richmond Hill, ON L4B 1B4
Based in Newmarket, 4 km away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 181 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 181 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1235 Journey's End Cir Unit #3, Newmarket, ON L3Y 8T7
#6 Enercare
Based in Vaughan, 36 km away
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 9,609 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 9,609 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 261 Trowers Rd, Vaughan, ON L4L 5Z8
Based in East Gwillimbury
62/100CR ScoreRanked #7 because of its Google rating and trade focus: 5.0★ from 86 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 86 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Barrie, 31 km away
62/100CR ScoreRanked #8 because of its Google rating and trade focus: 4.8★ from 5,937 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 5,937 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 89 Rawson Ave, Barrie, ON L4N 6E5
Based in East Gwillimbury
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 4.8★ from 113 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 113 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 157 High St, Sutton, ON L0E 1R0
Based in Barrie, 32 km away
61/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 2,540 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 2,540 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 92 Commerce Park Dr Unit 8, Barrie, ON L4N 8W8
#11 Go Lime
Based in North York, 37 km away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.8★ from 6,512 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 6,512 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2225 Sheppard Ave E, North York, ON M2J 5C2
Based in North York, 37 km away
61/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.7★ from 9,158 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 9,158 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2 Lansing Square, North York, ON M2J 4P8
Based in East Gwillimbury
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.8★ from 57 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 57 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Keswick, 13 km away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 162 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 162 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 430 The Queensway S Unit 27, Keswick, ON L4P 2E1
#15 Climatemate
Based in East Gwillimbury
60/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 37 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 37 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#16 Smile HVAC
Based in Vaughan, 32 km away
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 5.0★ from 1,314 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 1,314 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8540 Keele St Unit 41, Vaughan, ON L4K 2A6
#17 Enercare
Based in Barrie, 32 km away
60/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 2,051 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 2,051 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 680 Huronia Rd, Barrie, ON L4N 6C6
Based in Markham, 30 km away
60/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.8★ from 1,319 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 1,319 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 570 Alden Rd, Markham, ON L3R 8N2
#19 DC Comfort Air
Based in Oshawa, 17 km away
60/100CR ScoreRanked #19 because of its Google rating and trade focus: 5.0★ from 145 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 145 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Scarborough, 39 km away
60/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.8★ from 3,715 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 3,715 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1960 Ellesmere Rd Unit 6, Scarborough, ON M1P 3C2
#21 LG Home Comfort
Based in Vaughan, 32 km away
60/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.6★ from 2,421 Google reviews, listed on Google as “HVAC contractor”.
- 4.6★ from 2,421 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 301 Bradwick Dr, Vaughan, ON L4K 1K5
#22 Fox Services
Based in East Gwillimbury
60/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 22 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 22 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1 Prairie Grass Cres, East Gwillimbury, ON L9N 0S8
Based in Richmond Hill, 22 km away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 223 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 223 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 23 Colesbrook Rd, Richmond Hill, ON L4S 0C6
Based in Newmarket, 6 km away
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.9★ from 40 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 40 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 81 Davis Dr, Newmarket, ON L3Y 2M9
Based in Markham, 32 km away
59/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 836 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 836 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1001 Denison St Unit 1-2, Markham, ON L3R 2Z6
Top 50 of 549 HVAC contractors by emergency score
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.
How we ranked emergency HVAC contractors in East Gwillimbury
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 |
Emergency HVAC contractors in East Gwillimbury: questions
Which HVAC contractors in East Gwillimbury are open 24/7?
25 on this list post 24/7 hours, including Enercare, Black Forest, Summers and Smith Cooling & Heating Limited, Reliance Heating, Air Conditioning & Plumbing and Infiniti Air Conditioning & Heating.
Who is ranked #1 for emergency heating and cooling in East Gwillimbury, ON?
Enercare is #1, with a CR Score of 65 out of 100 on emergency weights.
How are emergency HVAC contractors in East Gwillimbury ranked?
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.
What should I do before the HVAC contractor arrives?
If you smell gas, leave the building now and call your gas utility or 911 from outside.
How many emergency HVAC contractors here list a phone number?
25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.
Update log for East Gwillimbury
- October 2026: CR Scores recalculated for 549 hvac contractors serving East Gwillimbury.