791 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in King: Enercare, CR Score 64/100; 4.9★ from 9,609 Google reviews; open 24/7.
Best for emergencies (open 24/7): Reliance Heating, Air Conditioning & Plumbing, posts 24/7 hours; ranked #2 of 791.
Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 20,445 Google reviews at 4.8★, the most of 791 ranked; ranked #7.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
791 King HVAC contractors are ranked here by CR Score, from ten published factors. 321 are open 24/7, 605 open Saturdays and 486 open Sundays, based on posted hours. The median Google rating is 4.9★ across 791 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Enercare | 64 | 4.9★ (9,609) | Vaughan, 20 km away | 24/7 | Overall |
| 2 | Reliance Heating, Air Conditioning & Plumbing | 64 | 4.9★ (10,870) | Richmond Hill, 21 km away | 24/7 | Emergencies |
| 3 | 5 Stars hvac services | 64 | 5.0★ (391) | King | 24/7 | — |
| 4 | Summers and Smith Cooling & Heating Limited | 63 | 4.9★ (1,559) | Aurora, 11 km away | 24/7 | — |
| 5 | Smile HVAC | 63 | 5.0★ (1,314) | Vaughan, 18 km away | 24/7 | — |
| 6 | Enercare | 62 | 4.8★ (11,186) | North York, 30 km away | 24/7 | — |
| 7 | Reliance Heating, Air Conditioning & Plumbing | 62 | 4.8★ (20,445) | Mississauga, 37 km away | 24/7 | Most reviews |
| 8 | Revamped Heating & Cooling Ltd | 62 | 4.8★ (206) | King | 24/7 | — |
| 9 | Enercare | 62 | 4.9★ (6,242) | Brampton, 33 km away | 24/7 | — |
| 10 | Enercare | 62 | 4.9★ (7,135) | Brampton, 34 km away | 24/7 | — |
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.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 9,609 Google reviews, listed on Google as “HVAC contractor”.
Based in Richmond Hill, 21 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 King
Ranked #3 because of its Google rating and trade focus: 5.0★ from 391 Google reviews, listed on Google as “HVAC contractor”.
Based in Aurora, 11 km away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,559 Google reviews, listed on Google as “HVAC contractor”.
Based in Vaughan, 18 km away
Ranked #5 because of its Google rating and trade focus: 5.0★ from 1,314 Google reviews, listed on Google as “HVAC contractor”.
Based in North York, 30 km away
Ranked #6 because of its Google rating and trade focus: 4.8★ from 11,186 Google reviews, listed on Google as “HVAC contractor”.
Based in Mississauga, 37 km away
Ranked #7 because of its Google rating and review volume: 4.8★ from 20,445 Google reviews, the most in King.
Based in King
Ranked #8 because of its Google rating and trade focus: 4.8★ from 206 Google reviews, listed on Google as “HVAC contractor”.
Based in Brampton, 33 km away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 6,242 Google reviews, listed on Google as “HVAC contractor”.
Based in Brampton, 34 km away
Ranked #10 because of its Google rating and trade focus: 4.9★ from 7,135 Google reviews, listed on Google as “HVAC contractor”.
Based in North York, 30 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 North York, 30 km away
Ranked #12 because of its Google rating and trade focus: 4.7★ from 9,158 Google reviews, listed on Google as “HVAC contractor”.
Based in Vaughan, 18 km away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 431 Google reviews, listed on Google as “HVAC contractor”.
Based in Richmond Hill, 12 km away
Ranked #14 because of its Google rating and trade focus: 5.0★ from 223 Google reviews, listed on Google as “HVAC contractor”.
Based in Vaughan, 12 km away
Ranked #15 because of its Google rating and trade focus: 4.9★ from 294 Google reviews, listed on Google as “HVAC contractor”.
Based in Vaughan, 20 km away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 1,309 Google reviews, listed on Google as “HVAC contractor”.
Based in Vaughan, 19 km away
Ranked #17 because of its Google rating and trade focus: 4.6★ from 2,421 Google reviews, listed on Google as “HVAC contractor”.
Based in Etobicoke, 37 km away
Ranked #18 because of its Google rating and trade focus: 4.9★ from 4,281 Google reviews, listed on Google as “HVAC contractor”.
Based in East Gwillimbury, 17 km away
Ranked #19 because of its Google rating and trade focus: 4.8★ from 532 Google reviews, listed on Google as “HVAC contractor”.
Based in Markham, 25 km away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 1,319 Google reviews, listed on Google as “HVAC contractor”.
Based in Brampton, 32 km away
Ranked #21 because of its Google rating and trade focus: 4.8★ from 3,190 Google reviews, listed on Google as “HVAC contractor”.
Based in King
Ranked #22 because of its Google rating and trade focus: 4.9★ from 147 Google reviews, listed on Google as “HVAC contractor”.
Based in Richmond Hill, 20 km away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 435 Google reviews, listed on Google as “HVAC contractor”.
Based in Richmond Hill, 21 km away
Ranked #24 because of its Google rating and trade focus: 4.9★ from 465 Google reviews, listed on Google as “HVAC contractor”.
Based in North York, 25 km away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 464 Google reviews, listed on Google as “HVAC contractor”.
#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 791 ranked HVAC contractors here; the rest are on their profiles.
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 |
|---|---|---|
| A Plus Air Systems | 4.7★ (460) | 24 km |
| alkebulanhvac services inc | In King | |
| Alpine Pro Contractors Inc. | 1.0★ (1) | In King |
| Caspian Breeze Heating and Air Conditioning | 5.0★ (2) | 17 km |
| Comfort Masters | In King | |
| Comfort Nest | In King | |
| Coryn's HVAC Services | 2.5★ (2) | 16 km |
| Eco Star Home Services Co. | 4.7★ (490) | 23 km |
| Enercare | 4.7★ (1,470) | 32 km |
| Everest Drain & Plumbing: Vaughan's Local Plumber | 5.0★ (2) | In King |
| FAM Plumbers inc | In King | |
| HVAC Central Solutions | 5.0★ (1) | In King |
| JJ HVAC Care Newmarket | 5.0★ (2) | 14 km |
| Markham Heating and Air Conditioning by Freezing Hot Mechanical | 5.0★ (2) | 19 km |
| Panda Home Comfort: HVAC Service | 5.0★ (2) | 13 km |
| Selective Air Systems | 5.0★ (2) | 19 km |
| Tempra Mechanical Hvac/r Airduct Services Inc. | In King | |
| Thermoflow Heating & Air Conditioning Ltd. | 5.0★ (2) | 19 km |
| Unitech Home Comfort | 5.0★ (2) | 24 km |
| Yorktowne Heating & Cooling Inc. | 5.0★ (2) | 18 km |
US national ranges converted to CAD, not adjusted for King. 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 |
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.
We scored 791 King 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 King 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 |