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Emergency HVAC Contractors in New Hamburg, ON (2026)

Top 50 of 227 HVAC contractors, in emergency orderUpdated 0 paid placements in this rankingHow we rank

25 of the 50 HVAC contractors on this list post 24/7 hours. 24/7 businesses come first, then same-day, each ranked by CR Score with availability weighted higher.

If you smell gas, leave the building now and call your gas utility or 911 from outside.

The short answer

  1. 1

    #1 for emergency heating and cooling in New Hamburg: Aire One Heating & Cooling KW, open 24/7.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

Top emergency HVAC contractors in New Hamburg at a glance

Top emergency HVAC contractors in New Hamburg at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Aire One Heating & Cooling KW924.8★ (9,448)Kitchener, 22 km away24/7
2Able Air Conditioning & Heating915.0★ (1,247)Kitchener, 23 km away24/7
3Total Aire Care Inc.905.0★ (857)Kitchener, 20 km away24/7
4Reliance Heating, Air Conditioning & Plumbing904.7★ (2,268)Waterloo, 20 km away24/7
5Reliance Heating, Air Conditioning & Plumbing904.7★ (9,230)Cambridge, 33 km away24/7
6Delta Air Systems Ltd.904.9★ (631)Waterloo, 18 km away24/7
7LG Home Comfort KWC904.9★ (674)Kitchener, 19 km away24/7
8Local Heating And Cooling905.0★ (397)Waterloo, 18 km away24/7
9Advance Heating & Cooling KW895.0★ (451)Kitchener, 20 km away24/7
10Priority Heating, Cooling & Plumbing894.9★ (593)Brant, 20 km away24/7

Call an emergency HVAC contractor in New Hamburg now

24/7 hours mean the business says its phone is answered around the clock. Arrival time depends on where the crew is. Ask for an arrival window when you call.

The 50 emergency HVAC contractors in New Hamburg, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights. The full ranking of all 227 is on the HVAC contractors page.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  18. #18 Unique Air

    Based in Kitchener, 18 km away

    88/100CR Score

    Ranked #18 because of its Google rating and availability: 4.9★ from 187 Google reviews, open 24/7.

    • 4.9★ from 187 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    533 Queen St S, Kitchener, ON N2G 1W9
    View profile for Unique Air(519) 729-3939

Top 50 of 227 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile.

HVAC contractors in New Hamburg, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26The Honest Heating Company - HVAC Contractor Kitchener & Waterloo864.8★ (61)16 km
27Local Heating And Cooling864.9★ (40)15 km
28Air Expert Home Comfort Inc864.6★ (155)20 km
29Constant Home Comfort Waterloo864.7★ (81)19 km
30ELEVATE AIR855.0★ (48)21 km
31City Heating and Cooling854.8★ (273)34 km
32Jambreeze Heating And Cooling855.0★ (115)31 km
33Bick Heating & Cooling Inc854.8★ (77)24 km
34BreezeCome Home Services/Quality Breeze 清风到家 服务到家854.8★ (47)21 km
35Superior Plumbing & Heating of Kitchener854.8★ (40)19 km
36Adaptive Mechanical Inc844.8★ (89)31 km
37Markle Heating & Cooling Inc845.0★ (19)19 km
38Valley Mechanical845.0★ (54)31 km
39Air Pro Services834.8★ (29)24 km
40CMS Heating & Cooling835.0★ (24)25 km
41Parr Mechanical Plumbing & Heating Inc.834.8★ (38)27 km
42TRH Plumbing & Heating Inc834.9★ (149)18 km
43Ultra Plumbing & HVAC835.0★ (15)21 km
44Platinum Home Comfort835.0★ (36)31 km
45Guelph ClimateCare834.7★ (164)39 km
46moe Heating & Air Conditioning Systems835.0★ (12)21 km
47Superior Plumbing & Heating of Stratford834.5★ (31)24 km
48Synergy Heating And Cooling Inc835.0★ (53)37 km
49DAVIS MECHANICAL HEATING AND COOLING834.3★ (10)16 km
50ThermalCare Heating & Cooling834.9★ (41)33 km

How we ranked emergency HVAC contractors in New Hamburg

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed from
Reputation25%Bayesian-adjusted Google star rating
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2
Review volume10%log10(reviews + 1) against the list maximum
Recency10%Share of reviews from the last 12 months
Availability20%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radius
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)

Emergency HVAC contractors in New Hamburg: questions

Which HVAC contractors in New Hamburg are open 24/7?

25 on this list post 24/7 hours, including Aire One Heating & Cooling KW, Able Air Conditioning & Heating, Total Aire Care Inc., Reliance Heating, Air Conditioning & Plumbing and Reliance Heating, Air Conditioning & Plumbing.

Who is ranked #1 for emergency heating and cooling in New Hamburg, ON?

Aire One Heating & Cooling KW is #1, with a CR Score of 92 out of 100 on emergency weights.

How are emergency HVAC contractors in New Hamburg ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 25% and 20%. Availability credits 24/7 hours, same-day service, weekend hours and weekly open hours. 24/7 HVAC contractors are listed first, then same-day, then the rest; ranks follow that order. Paid placement never changes a rank.

What should I do before the HVAC contractor arrives?

If you smell gas, leave the building now and call your gas utility or 911 from outside.

How many emergency HVAC contractors here list a phone number?

25 of the 25 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for New Hamburg

  1. October 2026: CR Scores recalculated for 227 hvac contractors serving New Hamburg.

More emergency and heating and cooling pages