64/100CR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 9,448 Google reviews, the most in New Hamburg.
- 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
Best HVAC Contractors in New Hamburg, ON (2026)
227 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in New Hamburg: Aire One Heating & Cooling KW, CR Score 64/100; 4.8★ from 9,448 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Able Air Conditioning & Heating, posts 24/7 hours; ranked #2 of 227.
- 5
Most-reviewed: Reliance Heating, Air Conditioning & Plumbing, 9,230 Google reviews at 4.7★, the most of 227 ranked after Aire One Heating & Cooling KW; ranked #5.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
227 New Hamburg HVAC contractors are ranked here by CR Score, from ten published factors. 95 are open 24/7, 130 open Saturdays and 112 open Sundays, based on posted hours. The median Google rating is 4.8★ across 227 rated businesses.
Top 10 HVAC contractors in New Hamburg at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Aire One Heating & Cooling KW | 64 | 4.8★ (9,448) | Kitchener, 22 km away | 24/7 | Overall |
| 2 | Able Air Conditioning & Heating | 62 | 5.0★ (1,247) | Kitchener, 23 km away | 24/7 | Emergencies |
| 3 | Total Aire Care Inc. | 62 | 5.0★ (857) | Kitchener, 20 km away | 24/7 | — |
| 4 | Reliance Heating, Air Conditioning & Plumbing | 62 | 4.7★ (2,268) | Waterloo, 20 km away | 24/7 | — |
| 5 | Reliance Heating, Air Conditioning & Plumbing | 62 | 4.7★ (9,230) | Cambridge, 33 km away | 24/7 | Most reviews |
| 6 | Delta Air Systems Ltd. | 62 | 4.9★ (631) | Waterloo, 18 km away | 24/7 | — |
| 7 | LG Home Comfort KWC | 62 | 4.9★ (674) | Kitchener, 19 km away | 24/7 | — |
| 8 | Local Heating And Cooling | 62 | 5.0★ (397) | Waterloo, 18 km away | 24/7 | — |
| 9 | Advance Heating & Cooling KW | 61 | 5.0★ (451) | Kitchener, 20 km away | 24/7 | — |
| 10 | Priority Heating, Cooling & Plumbing | 61 | 4.9★ (593) | Brant, 20 km away | 24/7 | — |
The 227 best HVAC contractors in New Hamburg, 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 Kitchener, 23 km away
62/100CR ScoreRanked #2 because of its Google rating and trade focus: 5.0★ from 1,247 Google reviews, listed on Google as “HVAC contractor”.
- 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, 20 km away
62/100CR ScoreRanked #3 because of its Google rating and trade focus: 5.0★ from 857 Google reviews, listed on Google as “HVAC contractor”.
- 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 Waterloo, 20 km away
62/100CR ScoreRanked #4 because of its Google rating and trade focus: 4.7★ from 2,268 Google reviews, listed on Google as “HVAC contractor”.
- 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 Cambridge, 33 km away
62/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.7★ from 9,230 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 9,230 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 275 Thompson Dr, Cambridge, ON N1T 2B9
Based in Waterloo, 18 km away
62/100CR ScoreRanked #6 because of its Google rating and trade focus: 4.9★ from 631 Google reviews, listed on Google as “HVAC contractor”.
- 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 Kitchener, 19 km away
62/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.9★ from 674 Google reviews, listed on Google as “HVAC contractor”.
- 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 Waterloo, 18 km away
62/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 397 Google reviews, listed on Google as “HVAC contractor”.
- 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 Kitchener, 20 km away
61/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 451 Google reviews, listed on Google as “HVAC contractor”.
- 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 Brant, 20 km away
61/100CR ScoreRanked #10 because of its Google rating and trade focus: 4.9★ from 593 Google reviews, listed on Google as “HVAC contractor”.
- 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 Cambridge, 32 km away
61/100CR ScoreRanked #11 because of its Google rating and trade focus: 4.9★ from 2,155 Google reviews, listed on Google as “HVAC contractor”.
- 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, 26 km away
61/100CR ScoreRanked #12 because of its Google rating and trade focus: 4.8★ from 1,534 Google reviews, listed on Google as “HVAC contractor”.
- 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 Waterloo, 19 km away
61/100CR ScoreRanked #13 because of its Google rating and trade focus: 4.7★ from 969 Google reviews, listed on Google as “HVAC contractor”.
- 4.7★ from 969 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 75 Rankin St, Waterloo, ON N2V 2B5
Based in Kitchener, 17 km away
61/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 203 Google reviews, listed on Google as “HVAC contractor”.
- 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 Kitchener, 20 km away
61/100CR ScoreRanked #15 because of its Google rating and trade focus: 4.9★ from 378 Google reviews, listed on Google as “HVAC contractor”.
- 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, 22 km away
60/100CR ScoreRanked #16 because of its Google rating and trade focus: 4.9★ from 447 Google reviews, listed on Google as “HVAC contractor”.
- 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 Waterloo, 14 km away
60/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.9★ from 525 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 525 Google reviews
- Hours
- Mon–Sun 7:30 AM–11:30 PM
- Address
- 403 Barrington Ln, Waterloo, ON N2T 1H9
Based in Huron East, 20 km away
60/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 268 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 268 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11 Henry St, St. Jacobs, ON N0B 2N0
#19 Unique Air
Based in Kitchener, 18 km away
60/100CR ScoreRanked #19 because of its Google rating and trade focus: 4.9★ from 187 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 187 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 533 Queen St S, Kitchener, ON N2G 1W9
Based in Kitchener, 14 km away
60/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.9★ from 120 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 120 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 49 Medford St, Kitchener, ON N2N 2H9
Based in Kitchener, 18 km away
59/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.9★ from 132 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 132 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 675 Queen St S, Kitchener, ON N2M 1A1
Based in Waterloo, 18 km away
59/100CR ScoreRanked #22 because of its Google rating and trade focus: 5.0★ from 256 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 256 Google reviews
- Hours
- Mon–Fri 8 AM–7 PM · Sat–Sun 10 AM–3 PM
- Address
- 1042, 180 Northfield Dr W #4, Waterloo, ON N2L 5J3
Based in Kitchener, 27 km away
59/100CR ScoreRanked #23 because of its Google rating and trade focus: 5.0★ from 233 Google reviews, listed on Google as “HVAC contractor”.
- 5.0★ from 233 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Cambridge, 26 km away
59/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.6★ from 1,022 Google reviews, listed on Google as “HVAC contractor”.
- 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 Kitchener, 20 km away
59/100CR ScoreRanked #25 because of its Google rating and trade focus: 4.9★ from 109 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 109 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 251 Arnold St Unit B, Kitchener, ON N2H 6E8
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 227 ranked HVAC contractors here; the rest are on their profiles.
Also serving New Hamburg
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 |
|---|---|---|
| Action Air Conditioning And Refrigeration Inc (Since 1978) | 5.0★ (1) | 19 km |
| Bradley Heating and Cooling | 3.0★ (2) | 18 km |
| DAVIS MECHANICAL HEATING AND COOLING | 4.3★ (10) | 16 km |
| Dordan Mechanical Inc | 3.0★ (4) | In New Hamburg |
| Enercare | 3.8★ (466) | 28 km |
| Farrington Plumbing & Heating | 3.0★ (2) | 29 km |
| Guelph ClimateCare | 4.7★ (164) | 39 km |
| Macker Mechanical | 5.0★ (2) | 5 km |
| Mason Mechanical Services Inc | 5.0★ (2) | 27 km |
| NRG HVAC | 5.0★ (2) | 17 km |
| Olheiser Heating & Air Conditioning | 3.0★ (2) | 33 km |
| Parr Mechanical Plumbing & Heating Inc. | 4.8★ (38) | 27 km |
| ProTemp Refrigeration Inc. | 5.0★ (1) | 19 km |
| Radcliffe Service Inc | 5.0★ (2) | 37 km |
| Smith and Long Limited | 5.0★ (1) | 20 km |
| Triple 8 Plumbing & Heating | 4.1★ (97) | 17 km |
| Ultra Comfort Cambridge | 4.0★ (146) | 27 km |
| Ventilation HVAC Kitchener | 5.0★ (2) | 19 km |
| Watson Mechanical Contractors | 5.0★ (2) | 31 km |
| WinterHeat Rescue HVAC | 5.0★ (2) | 17 km |
How much do HVAC contractors cost in New Hamburg?
US national ranges converted to CAD, not adjusted for New Hamburg. 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 New Hamburg HVAC contractors
We scored 227 New Hamburg 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 New Hamburg 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 New Hamburg: frequently asked questions
Who is the best HVAC contractor in New Hamburg?
By CR Score, the highest-ranked HVAC contractor in New Hamburg, ON is Aire One Heating & Cooling KW with a CR Score of 64/100. It has 4.8★ from 9,448 Google reviews. It is open 24/7. Able Air Conditioning & Heating (#2) and Total Aire Care Inc. (#3) follow. We ranked 227 HVAC contractors on ten factors, last updated October 22, 2026.
How many HVAC contractors are there in New Hamburg?
ContractorsRanked ranks 227 HVAC contractors serving New Hamburg, ON. Another 20 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in New Hamburg are open 24/7?
95 ranked HVAC contractors in New Hamburg post 24/7 hours. The highest-ranked are Aire One Heating & Cooling KW (#1), Able Air Conditioning & Heating (#2) and Total Aire Care Inc. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in New Hamburg work on weekends?
130 of 227 ranked HVAC contractors post Saturday hours and 112 post Sunday hours. The highest-ranked open Saturdays are Aire One Heating & Cooling KW (#1), Able Air Conditioning & Heating (#2) and Total Aire Care Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does ac replacement cost in New Hamburg?
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 New Hamburg. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do New Hamburg HVAC contractors have?
The median Google rating among 227 rated HVAC contractors in New Hamburg is 4.8★, with a median of 30 reviews. Aire One Heating & Cooling KW has the most, 9,448 reviews, and ranks #1. 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 New Hamburg?
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 New Hamburg
- October 2026: CR Scores recalculated for 227 hvac contractors serving New Hamburg.
More HVAC contractors and New Hamburg pages
HVAC contractors near New Hamburg
- HVAC contractors in Kitchener, ON287 ranked
- HVAC contractors in Waterloo, ON249 ranked
- HVAC contractors in Stratford, ON125 ranked
- HVAC contractors in Woodstock, ON154 ranked
- HVAC contractors in Cambridge, ON374 ranked
- HVAC contractors in Paris, ON311 ranked
- HVAC contractors in Brant, ON261 ranked
- HVAC contractors in Guelph, ON291 ranked
- HVAC contractors in Ingersoll, ON174 ranked
- HVAC contractors in North Perth, ON45 ranked
Other trades in New Hamburg
- Roofers in New Hamburg272 ranked
- Plumbers in New Hamburg198 ranked
- Electricians in New Hamburg201 ranked
- General contractors in New Hamburg304 ranked
- Painters in New Hamburg82 ranked
- Landscapers in New Hamburg83 ranked
- Handymen in New Hamburg30 ranked
- Kitchen remodelers in New Hamburg251 ranked
- Bathroom remodelers in New Hamburg178 ranked
- Flooring contractors in New Hamburg105 ranked
- Tile installers in New Hamburg35 ranked
- Drywall contractors in New Hamburg12 ranked
- Concrete contractors in New Hamburg126 ranked
- Fence contractors in New Hamburg110 ranked
- Deck builders in New Hamburg114 ranked
- Siding contractors in New Hamburg107 ranked
- Window installers in New Hamburg137 ranked
- Gutter installers in New Hamburg55 ranked
- Insulation contractors in New Hamburg32 ranked
- Solar installers in New Hamburg30 ranked
- Garage door repair companies in New Hamburg38 ranked
- Foundation repair companies in New Hamburg72 ranked
- Tree services in New Hamburg72 ranked
- Masonry contractors in New Hamburg72 ranked
- Water damage restoration companies in New Hamburg134 ranked
- Home builders in New Hamburg231 ranked
- Demolition contractors in New Hamburg24 ranked
- All contractors in New Hamburg