95/100CR Score
Ranked #1 because of its Google rating and availability: 4.7★ from 9,230 Google reviews, open 24/7.
- 4.7★ from 9,230 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 275 Thompson Dr, Cambridge, ON N1T 2B9
Best HVAC Contractors in Cambridge, ON (2026)
374 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Cambridge: Reliance Heating, Air Conditioning & Plumbing, CR Score 95/100; 4.7★ from 9,230 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Aire One Heating & Cooling Cambridge, posts 24/7 hours; ranked #2 of 374.
- 4
Most-reviewed: Aire One Heating & Cooling KW, 9,448 Google reviews at 4.8★, the most of 374 ranked; ranked #4.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
374 Cambridge HVAC contractors are ranked here by CR Score, from 8 published factors. 159 are open 24/7, 234 open Saturdays and 200 open Sundays, based on posted hours. The median Google rating is 4.9★ across 374 rated businesses.
Top 10 HVAC contractors in Cambridge at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Reliance Heating, Air Conditioning & Plumbing | 95 | 4.7★ (9,230) | Cambridge | 24/7 | Overall |
| 2 | Aire One Heating & Cooling Cambridge | 94 | 4.9★ (2,155) | Cambridge | 24/7 | Emergencies |
| 3 | Boehmers/Cronin Emery Home Services by Enercare | 93 | 4.8★ (1,534) | Cambridge | 24/7 | — |
| 4 | Aire One Heating & Cooling KW | 93 | 4.8★ (9,448) | Kitchener, 17 km away | 24/7 | Most reviews |
| 5 | Total Aire Care Inc. | 92 | 5.0★ (857) | Kitchener, 12 km away | 24/7 | — |
| 6 | Able Air Conditioning & Heating | 92 | 5.0★ (1,247) | Kitchener, 16 km away | 24/7 | — |
| 7 | Advance Heating & Cooling KW | 91 | 5.0★ (451) | Kitchener, 13 km away | 24/7 | — |
| 8 | Hammond Home Services by Enercare | 91 | 4.6★ (1,022) | Cambridge | 24/7 | — |
| 9 | Reliance Heating, Air Conditioning & Plumbing | 91 | 4.8★ (4,116) | Brantford, 23 km away | 24/7 | — |
| 10 | City Heating and Cooling | 90 | 4.8★ (273) | Cambridge | 24/7 | — |
The 374 best HVAC contractors in Cambridge, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Cambridge
94/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 2,155 Google reviews, open 24/7.
- 4.9★ from 2,155 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 290 Pinebush Rd, Cambridge, ON N1T 1Z6
Based in Cambridge
93/100CR ScoreRanked #3 because of its Google rating and availability: 4.8★ from 1,534 Google reviews, open 24/7.
- 4.8★ from 1,534 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1090 Fountain St N Unit 4, Cambridge, ON N3E 1A3
Based in Kitchener, 17 km away
93/100CR ScoreRanked #4 because of its Google rating and review volume: 4.8★ from 9,448 Google reviews, the most Google reviews on this list (9,448).
- 4.8★ from 9,448 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1069 Victoria St N, Kitchener, ON N2B 3C7
Based in Kitchener, 12 km away
92/100CR ScoreRanked #5 because of its Google rating and availability: 5.0★ from 857 Google reviews, open 24/7.
- 5.0★ from 857 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 299 Manitou Dr A, Kitchener, ON N2C 1L5
Based in Kitchener, 16 km away
92/100CR ScoreRanked #6 because of its Google rating and availability: 5.0★ from 1,247 Google reviews, open 24/7.
- 5.0★ from 1,247 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1501 Victoria St N, Kitchener, ON N2B 3E4
Based in Kitchener, 13 km away
91/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 451 Google reviews, open 24/7.
- 5.0★ from 451 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 44 Otonabee Dr, Kitchener, ON N2C 1L6
Based in Cambridge
91/100CR ScoreRanked #8 because of its Google rating and availability: 4.6★ from 1,022 Google reviews, open 24/7.
- 4.6★ from 1,022 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1090 Fountain St N Unit 4, Cambridge, ON N3E 1A3
Based in Brantford, 23 km away
91/100CR ScoreRanked #9 because of its Google rating and availability: 4.8★ from 4,116 Google reviews, open 24/7.
- 4.8★ from 4,116 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 37 Morton Ave E, Brantford, ON N3R 7J5
Based in Cambridge
90/100CR ScoreRanked #10 because of its Google rating and availability: 4.8★ from 273 Google reviews, open 24/7.
- 4.8★ from 273 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 615 Main St, Cambridge, ON N1R 5S7
Based in Cambridge
90/100CR ScoreRanked #11 because of its Google rating and availability: 5.0★ from 115 Google reviews, open 24/7.
- 5.0★ from 115 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 73 Water St N #300, Cambridge, ON N1R 7L6
Based in Kitchener, 15 km away
90/100CR ScoreRanked #12 because of its Google rating and availability: 4.9★ from 674 Google reviews, open 24/7.
- 4.9★ from 674 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 20 Hanson Ave, Kitchener, ON N2C 2E2
Based in Brant, 14 km away
90/100CR ScoreRanked #13 because of its Google rating and availability: 4.9★ from 593 Google reviews, open 24/7.
- 4.9★ from 593 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3160 Alps Rd, Ayr, ON N0B 1E0
Based in Kitchener, 13 km away
90/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 378 Google reviews, open 24/7.
- 4.9★ from 378 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 107 Manitou Dr #12, Kitchener, ON N2C 1L4
Based in Kitchener, 14 km away
89/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 233 Google reviews, open 24/7.
- 5.0★ from 233 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Kitchener, 16 km away
89/100CR ScoreRanked #16 because of its Google rating and availability: 4.9★ from 447 Google reviews, open 24/7.
- 4.9★ from 447 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1268 Victoria St N, Kitchener, ON N2B 3C9
Based in Kitchener, 15 km away
89/100CR ScoreRanked #17 because of its Google rating and availability: 5.0★ from 203 Google reviews, open 24/7.
- 5.0★ from 203 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 169 Seabrook Dr, Kitchener, ON N2R 0E6
Based in Guelph, 24 km away
89/100CR ScoreRanked #18 because of its Google rating and availability: 4.8★ from 1,575 Google reviews, open 24/7.
- 4.8★ from 1,575 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1007 York Rd, Guelph, ON N1E 6Y9
Based in Cambridge
89/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 54 Google reviews, open 24/7.
- 5.0★ from 54 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 58 Nickolas Crescent, Cambridge, ON N3C 3K7
Based in Cambridge
89/100CR ScoreRanked #20 because of its Google rating and availability: 4.8★ from 89 Google reviews, open 24/7.
- 4.8★ from 89 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 49 Cedar St, Cambridge, ON N1S 1V4
Based in Waterloo, 24 km away
89/100CR ScoreRanked #21 because of its Google rating and availability: 4.7★ from 2,268 Google reviews, open 24/7.
- 4.7★ from 2,268 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 215 Bathurst Dr Units 4/5, Waterloo, ON N2V 2B2
Based in Waterloo, 25 km away
88/100CR ScoreRanked #22 because of its Google rating and availability: 5.0★ from 397 Google reviews, open 24/7.
- 5.0★ from 397 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 105 Randall Dr unit#1, Waterloo, ON N2V 1C5
Based in Guelph, 23 km away
88/100CR ScoreRanked #23 because of its Google rating and availability: 4.9★ from 529 Google reviews, open 24/7.
- 4.9★ from 529 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 50 Victoria Rd S, Guelph, ON N1E 5P6
Based in Waterloo, 24 km away
88/100CR ScoreRanked #24 because of its Google rating and availability: 4.9★ from 631 Google reviews, open 24/7.
- 4.9★ from 631 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 595 Colby Dr #2, Waterloo, ON N2V 1A1
Based in Cambridge
88/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 360 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 360 Google reviews
- Hours
- Mon–Sun 8 AM–9 PM
- Address
- 25 Struck Ct #5, Cambridge, ON N1R 8L2
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 374 ranked HVAC contractors here; the rest are on their profiles.
Also serving Cambridge
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 |
|---|---|---|
| AirCon Inc. | 4.7★ (27) | 7 km |
| Biddle Canada | In Cambridge | |
| Bradley Heating and Cooling | 3.0★ (2) | 16 km |
| Comfort Temp Solutions Inc. | In Cambridge | |
| G B Heating & Cooling Ltd | In Cambridge | |
| G P Airduct Combustion Equipment Inc | 5.0★ (1) | In Cambridge |
| HAMCO Heating and Cooling Ltd. | 4.8★ (624) | 37 km |
| Hephaestus Homes | 4.6★ (5) | In Cambridge |
| Jess-Don Dunford Ltd | 5.0★ (2) | 18 km |
| Luciano Plumbing and Heating Ltd. | 5.0★ (1) | In Cambridge |
| Mason Mechanical Services Inc | 5.0★ (2) | In Cambridge |
| MRJ Mechanical Inc. | 4.4★ (14) | In Cambridge |
| Novelty Heating and Coooling Inc | 5.0★ (1) | In Cambridge |
| Ozone Control Inc | 5.0★ (1) | In Cambridge |
| Process Group Inc | 3.5★ (11) | In Cambridge |
| Radcliffe Service Inc | 5.0★ (2) | 18 km |
| Speedy Home Services | 5.0★ (1) | In Cambridge |
| TRH Solutions | 5.0★ (1) | In Cambridge |
| Ventilation HVAC Kitchener | 5.0★ (2) | 15 km |
| Watson Mechanical Contractors | 5.0★ (2) | In Cambridge |
How much do HVAC contractors cost in Cambridge?
US national ranges converted to CAD, not adjusted for Cambridge. 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 Cambridge HVAC contractors
We scored 374 Cambridge HVAC contractors on 8 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. Unknown factors are left out of the score, 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 Cambridge data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
HVAC contractors in Cambridge: frequently asked questions
Who is the best HVAC contractor in Cambridge?
By CR Score, the highest-ranked HVAC contractor in Cambridge, ON is Reliance Heating, Air Conditioning & Plumbing with a CR Score of 95/100. It has 4.7★ from 9,230 Google reviews. It is open 24/7. Aire One Heating & Cooling Cambridge (#2) and Boehmers/Cronin Emery Home Services by Enercare (#3) follow. We ranked 374 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Cambridge?
ContractorsRanked ranks 374 HVAC contractors serving Cambridge, ON. 17 of them are based in Cambridge; 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 Cambridge are open 24/7?
159 ranked HVAC contractors in Cambridge post 24/7 hours. The highest-ranked are Reliance Heating, Air Conditioning & Plumbing (#1), Aire One Heating & Cooling Cambridge (#2) and Boehmers/Cronin Emery Home Services by Enercare (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Cambridge work on weekends?
234 of 374 ranked HVAC contractors post Saturday hours and 200 post Sunday hours. The highest-ranked open Saturdays are Reliance Heating, Air Conditioning & Plumbing (#1), Aire One Heating & Cooling Cambridge (#2) and Boehmers/Cronin Emery Home Services by Enercare (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in Cambridge?
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 Cambridge. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Cambridge HVAC contractors have?
The median Google rating among 374 rated HVAC contractors in Cambridge is 4.9★, with a median of 29 reviews. Aire One Heating & Cooling KW has the most, 9,448 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 Cambridge?
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 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Update log for Cambridge
- October 2026: CR Scores recalculated for 374 hvac contractors serving Cambridge.
- October 2026: 1 duplicate listing merged.
More HVAC contractors and Cambridge pages
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