57 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Kingston: Haven Home Heating and Air Conditioning, CR Score 68/100; 4.9★ from 3,430 Google reviews; open 24/7.
Best for emergencies (open 24/7): Kingston Home Services by Enercare, posts 24/7 hours; ranked #2 of 57.
Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 4,101 Google reviews at 4.7★, the most of 57 ranked; ranked #3.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
57 Kingston HVAC contractors are ranked here by CR Score, from ten published factors. 17 are open 24/7, 27 open Saturdays and 24 open Sundays, based on posted hours. The median Google rating is 4.8★ across 57 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Haven Home Heating and Air Conditioning | 68 | 4.9★ (3,430) | Kingston | 24/7 | Overall |
| 2 | Kingston Home Services by Enercare | 68 | 4.9★ (2,867) | Kingston | 24/7 | Emergencies |
| 3 | Reliance Heating, Air Conditioning & Plumbing | 67 | 4.7★ (4,101) | Kingston | 24/7 | Most reviews |
| 4 | Dows ClimateCare | 64 | 4.9★ (272) | Kingston | 24/7 | — |
| 5 | Home Aire Care Heating and Cooling | 64 | 4.8★ (400) | Kingston | 24/7 | — |
| 6 | Kyro Mechanical | 63 | 5.0★ (311) | Kingston | Sat · Sun · Evenings | — |
| 7 | Superior Plumbing & Heating of Kingston | 63 | 4.9★ (137) | Kingston | 24/7 | — |
| 8 | Fireplaces Unlimited Heating & Cooling | 63 | 4.9★ (995) | Kingston | Sat | — |
| 9 | YGK Heating & Cooling Inc. | 62 | 5.0★ (156) | Kingston | Sat · Sun | — |
| 10 | Clean Comfort Home Improvements | 61 | 5.0★ (322) | Kingston | 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 3,430 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #2 because of its Google rating and trade focus: 4.9★ from 2,867 Google reviews, listed on Google as “Furnace repair service”.
Based in Kingston
Ranked #3 because of its Google rating and review volume: 4.7★ from 4,101 Google reviews, the most in Kingston.
Based in Kingston
Ranked #4 because of its Google rating and trade focus: 4.9★ from 272 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #5 because of its Google rating and trade focus: 4.8★ from 400 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #6 because of its Google rating and trade focus: 5.0★ from 311 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #7 because of its Google rating and trade focus: 4.9★ from 137 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #8 because of its Google rating and trade focus: 4.9★ from 995 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #9 because of its Google rating and trade focus: 5.0★ from 156 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #10 because of its Google rating and trade focus: 5.0★ from 322 Google reviews, listed on Google as “Roofing contractor”.
Based in Kingston
Ranked #11 because of its Google rating and trade focus: 4.8★ from 49 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #12 because of its Google rating and trade focus: 4.7★ from 51 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #13 because of its Google rating and trade focus: 5.0★ from 425 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #14 because of its Google rating and trade focus: 4.8★ from 54 Google reviews, listed on Google as “Heating contractor”.
Based in Kingston
Ranked #15 because of its Google rating and trade focus: 5.0★ from 21 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #16 because of its Google rating and trade focus: 5.0★ from 109 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #17 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Heating contractor”.
Based in Kingston
Ranked #18 because of its Google rating and trade focus: 4.8★ from 156 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #19 because of its Google rating and trade focus: 5.0★ from 10 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #20 because of its Google rating and trade focus: 3.4★ from 5 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #21 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Air conditioning contractor”.
Based in Kingston
Ranked #22 because of its Google rating and trade focus: 4.6★ from 107 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #23 because of its Google rating and trade focus: 4.7★ from 9 Google reviews, listed on Google as “HVAC contractor”.
Based in Gananoque, 28 km away
Ranked #24 because of its Google rating and trade focus: 4.8★ from 31 Google reviews, listed on Google as “HVAC contractor”.
Based in Kingston
Ranked #25 because of its Google rating and trade focus: 4.7★ from 49 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 57 ranked HVAC contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Protech Heating And Air Conditioning | 56 | 5.0★ (10) | In Kingston |
| 27 | H Mann Heat & Cool | 55 | 4.9★ (33) | 33 km |
| 28 | ECM | 55 | 4.6★ (54) | In Kingston |
| 29 | Southeastern Group | 55 | 4.8★ (26) | In Kingston |
| 30 | Kingston Home Heating | 55 | 4.5★ (53) | In Kingston |
| 31 | Donaldson Plumbing & Heating | 55 | 3.7★ (15) | In Kingston |
| 32 | Ktown HVAC & Propane | 55 | 5.0★ (4) | In Kingston |
| 33 | Leonard Heating and Cooling | 54 | 4.2★ (76) | In Kingston |
| 34 | Empire State Heating & Air | 54 | 4.4★ (71) | 38 km |
| 35 | GT Air Systems | 54 | 4.4★ (29) | In Kingston |
| 36 | Bridgeview Tech Inc | 54 | 4.6★ (38) | In Kingston |
| 37 | Stinson Heating and Air Conditioning | 54 | 4.4★ (19) | In Kingston |
| 38 | Sure-Fire Heating & Air Conditioning | 53 | 4.6★ (10) | In Kingston |
| 39 | Alex McCoy Plumbing & Heating Ltd. | 53 | 4.0★ (88) | In Kingston |
| 40 | G & G Heating and Cooling | 53 | 5.0★ (4) | In Kingston |
| 41 | McCann Heating & Cooling | 52 | 5.0★ (3) | In Kingston |
| 42 | PRO ALL Plumbing HVAC & Electrical | 52 | 3.4★ (10) | In Kingston |
| 43 | Wylie Electric | 52 | 4.9★ (7) | In Kingston |
| 44 | Appliance Mechanics HVAC LTD. | 52 | 4.6★ (24) | 28 km |
| 45 | RackAir | 52 | 3.0★ (10) | In Kingston |
| 46 | Northern Temp | 51 | 5.0★ (13) | 19 km |
| 47 | Van Heddegem Plumbing & Heating (1988) Inc | 51 | 4.0★ (12) | In Kingston |
| 48 | ABS Plumbing & Heating | 51 | 4.0★ (8) | In Kingston |
| 49 | Cape Vincent Plumbing & Heating Co | 51 | 4.8★ (4) | In Kingston |
| 50 | Superior Plumbing & Heating of Napanee | 48 | 4.2★ (5) | 38 km |
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 |
|---|---|---|
| AirOn HVACR United | 5.0★ (2) | In Kingston |
| Brocks heating and cooling | In Kingston | |
| Comfort Rich Insulation Ltd | 1.0★ (1) | In Kingston |
| Constructing Concepts | 4.8★ (18) | In Kingston |
| CP CONTRACTING-Plumbing & Heating Contractors | 1.0★ (2) | In Kingston |
| Hamilton Smith | 3.0★ (2) | In Kingston |
| John The Plumber | 4.7★ (459) | In Kingston |
| John The Plumber | 4.9★ (188) | In Kingston |
| KES Energy Management | 1.0★ (1) | In Kingston |
| Kingston Geothermal | 5.0★ (1) | In Kingston |
| Kingston Geothermal Ltd | In Kingston | |
| Ktown HVAC & Propane | 5.0★ (1) | In Kingston |
| Lasher Glen Home Comfort Service | 4.4★ (39) | 27 km |
| Modern Niagara Kingston | 1.0★ (1) | In Kingston |
| Pro Desk at RONA | In Kingston | |
| Pro Desk at RONA | In Kingston | |
| Pro Desk at RONA+ | In Kingston | |
| Sunlight Heating & Cooling | In Kingston | |
| Toshack Heating Cooling Plumbing | In Kingston | |
| United Refrigeration Of Canada Ltd | 4.5★ (2) | In Kingston |
US national ranges converted to CAD, not adjusted for Kingston. 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 57 Kingston 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 Kingston 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 |