64/100CR 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
Best HVAC Contractors in East Gwillimbury, ON (2026)
549 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in East Gwillimbury: Enercare, CR Score 64/100; 4.8★ from 1,563 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Summers and Smith Cooling & Heating Limited, posts 24/7 hours; ranked #2 of 549.
- 4
Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 10,870 Google reviews at 4.9★, the most of 549 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
549 East Gwillimbury HVAC contractors are ranked here by CR Score, from ten published factors. 203 are open 24/7, 393 open Saturdays and 311 open Sundays, based on posted hours. The median Google rating is 4.9★ across 549 rated businesses.
Top 10 HVAC contractors in East Gwillimbury at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Enercare | 64 | 4.8★ (1,563) | East Gwillimbury | 24/7 | Overall |
| 2 | Summers and Smith Cooling & Heating Limited | 63 | 4.9★ (1,559) | Aurora, 11 km away | 24/7 | Emergencies |
| 3 | Black Forest | 63 | 4.8★ (532) | East Gwillimbury | 24/7 | — |
| 4 | Reliance Heating, Air Conditioning & Plumbing | 63 | 4.9★ (10,870) | Richmond Hill, 29 km away | 24/7 | Most reviews |
| 5 | Enercare | 61 | 4.9★ (9,609) | Vaughan, 36 km away | 24/7 | — |
| 6 | Infiniti Air Conditioning & Heating | 61 | 4.9★ (181) | Newmarket, 4 km away | 24/7 | — |
| 7 | Alper Heating and Cooling inc | 61 | 5.0★ (86) | East Gwillimbury | 24/7 | — |
| 8 | Reliance Yanch Heating, Air Conditioning & Plumbing | 61 | 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 | 60 | 4.9★ (2,540) | Barrie, 32 km away | 24/7 | — |
The 549 best HVAC contractors in East Gwillimbury, ranked
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Aurora, 11 km away
63/100CR ScoreRanked #2 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
#3 Black Forest
Based in East Gwillimbury
63/100CR ScoreRanked #3 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 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
#5 Enercare
Based in Vaughan, 36 km away
61/100CR ScoreRanked #5 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 Newmarket, 4 km away
61/100CR ScoreRanked #6 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
Based in East Gwillimbury
61/100CR 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
61/100CR 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
60/100CR 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
Based in East Gwillimbury
60/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 137 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 137 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 18116 Leslie St, East Gwillimbury, ON L9N 0M5
Based in Keswick, 13 km away
60/100CR ScoreRanked #12 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
#13 Smile HVAC
Based in Vaughan, 32 km away
60/100CR ScoreRanked #13 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
Based in Newmarket, 4 km away
60/100CR ScoreRanked #14 because of its Google rating and trade focus: 4.9★ from 261 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 261 Google reviews
- Hours
- Mon–Wed 7 AM–10 PM · Thu 10 AM–10 PM · Fri 7 AM–10 PM · Sat 7 AM–5 PM · Sun 9 AM–5 PM
- Address
- 1215 Twinney Dr #5, Newmarket, ON L3Y 9E1
#15 Go Lime
Based in North York, 37 km away
60/100CR ScoreRanked #15 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
#16 Climatemate
Based in East Gwillimbury
60/100CR ScoreRanked #16 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
Based in North York, 37 km away
60/100CR ScoreRanked #17 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
60/100CR ScoreRanked #18 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
#19 DC Comfort Air
Based in Oshawa, 17 km away
59/100CR 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 Richmond Hill, 22 km away
59/100CR ScoreRanked #20 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 Markham, 30 km away
59/100CR ScoreRanked #21 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
Based in King, 28 km away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 391 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 391 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 52 Convoy Crescent, Maple, ON L6A 3H3
Based in Scarborough, 39 km away
59/100CR ScoreRanked #23 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
#24 Fox Services
Based in East Gwillimbury
59/100CR ScoreRanked #24 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 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
HVAC contractors ranked #26 to #50
#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 549 ranked HVAC contractors here; the rest are on their profiles.
Also serving East Gwillimbury
20 more HVAC 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 |
|---|---|---|
| Air Benders Mechanical Inc. | 5.0★ (2) | In East Gwillimbury |
| Aire One Heating & Cooling | 4.8★ (480) | 31 km |
| alkebulan hvac services inc | 5.0★ (2) | In East Gwillimbury |
| Caspian Breeze Heating and Air Conditioning | 5.0★ (2) | In East Gwillimbury |
| Constant Home Comfort | 4.6★ (301) | 25 km |
| Easy solution heating and air conditioning | In East Gwillimbury | |
| Enercare | 4.8★ (1,154) | 39 km |
| EVE Mechanical Services Inc. | 3.0★ (2) | In East Gwillimbury |
| Grand Trend Air Inc. | In East Gwillimbury | |
| Informed Plumbing Heating and Drains | In East Gwillimbury | |
| JJ HVAC Care Newmarket | 5.0★ (2) | 6 km |
| Martino HVAC | 4.7★ (631) | 31 km |
| MIB HVAC | In East Gwillimbury | |
| NK Combustion And Boiler Services Inc. | 5.0★ (2) | 18 km |
| One Heating & Cooling | 5.0★ (16) | 6 km |
| R&R heating and cooling | 5.0★ (1) | In East Gwillimbury |
| Reliable comfort group inc | In East Gwillimbury | |
| Reliable Energy Home Services | 5.0★ (1) | In East Gwillimbury |
| Star Homes | 5.0★ (1) | In East Gwillimbury |
| United Trades | In East Gwillimbury |
How much do HVAC contractors cost in East Gwillimbury?
US national ranges converted to CAD, not adjusted for East Gwillimbury. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | CA$5,460 | CA$8,400 | CA$11,350 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Furnace replacement | CA$3,970 | CA$6,770 | CA$9,690 | Per system, installed; typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
When to hire an HVAC contractor in Ontario
In Ontario, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
How we ranked East Gwillimbury HVAC contractors
We scored 549 East Gwillimbury HVAC 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 East Gwillimbury 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 |
HVAC contractors in East Gwillimbury: frequently asked questions
Who is the best HVAC contractor in East Gwillimbury?
By CR Score, the highest-ranked HVAC contractor in East Gwillimbury, ON is Enercare with a CR Score of 64/100. It has 4.8★ from 1,563 Google reviews. It is open 24/7. Summers and Smith Cooling & Heating Limited (#2) and Black Forest (#3) follow. We ranked 549 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in East Gwillimbury?
ContractorsRanked ranks 549 HVAC contractors serving East Gwillimbury, ON. 13 of them are based in East Gwillimbury; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in East Gwillimbury are open 24/7?
203 ranked HVAC contractors in East Gwillimbury post 24/7 hours. The highest-ranked are Enercare (#1), Summers and Smith Cooling & Heating Limited (#2) and Black Forest (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in East Gwillimbury work on weekends?
393 of 549 ranked HVAC contractors post Saturday hours and 311 post Sunday hours. The highest-ranked open Saturdays are Enercare (#1), Summers and Smith Cooling & Heating Limited (#2) and Black Forest (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in East Gwillimbury?
AC replacement typically costs CA$5,460 to CA$11,350, with CA$8,400 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)). This is a national range, not adjusted for East Gwillimbury. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do East Gwillimbury HVAC contractors have?
The median Google rating among 549 rated HVAC contractors in East Gwillimbury is 4.9★, with a median of 31 reviews. Reliance Heating, Air Conditioning & Plumbing has the most, 10,870 reviews, and ranks #4. We adjust ratings for review count, so a few five-star reviews cannot top the list.
When is the best time to hire an HVAC contractor in East Gwillimbury?
In Ontario, furnace and heat pump calls peak in the coldest winter weeks and AC calls in summer heat waves. Spring and fall are the easiest times to book maintenance or a replacement.
How does ContractorsRanked rank HVAC contractors?
Each HVAC contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for East Gwillimbury
- October 2026: CR Scores recalculated for 549 hvac contractors serving East Gwillimbury.
More HVAC contractors and East Gwillimbury pages
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