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ContractorsRanked

Emergency HVAC Contractors in Kitchener, ON (2026)

Top 50 of 287 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 Kitchener: 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 Kitchener at a glance

Top emergency HVAC contractors in Kitchener at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Aire One Heating & Cooling KW964.8★ (9,448)Kitchener24/7
2Able Air Conditioning & Heating945.0★ (1,247)Kitchener24/7
3Total Aire Care Inc.945.0★ (857)Kitchener24/7
4LG Home Comfort KWC934.9★ (674)Kitchener24/7
5Advance Heating & Cooling KW935.0★ (451)Kitchener24/7
6Reliance Heating, Air Conditioning & Plumbing924.7★ (9,230)Cambridge, 18 km away24/7
7Infiniti Air Kitchener | Furnace Repair & Heat Pump Installation | AC Services924.9★ (447)Kitchener24/7
8365 Heating, Cooling, Plumbing & Electrical924.9★ (378)Kitchener24/7
9Air Comfort Mechanical Inc.925.0★ (233)Kitchener24/7
10Aire One Heating & Cooling Cambridge924.9★ (2,155)Cambridge, 17 km away24/7

Call an emergency HVAC contractor in Kitchener 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 Kitchener, 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 287 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.

  16. #16 Unique Air

    Based in Kitchener

    91/100CR Score

    Ranked #16 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

  25. #25 ELEVATE AIR

    Based in Kitchener

    89/100CR Score

    Ranked #25 because of its Google rating and availability: 5.0★ from 48 Google reviews, open 24/7.

    • 5.0★ from 48 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    425 Wilson Ave, Kitchener, ON N2C 2R8
    View profile for ELEVATE AIR(647) 215-5847

Top 50 of 287 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 Kitchener, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Reliance Heating, Air Conditioning & Plumbing894.8★ (4,116)36 km
27Oosterveld Heating & Air Conditioning894.8★ (1,575)29 km
28The Honest Heating Company - HVAC Contractor Kitchener & Waterloo894.8★ (61)In Kitchener
29Local Heating And Cooling884.9★ (40)In Kitchener
30Aido Climate Solutions Inc.884.9★ (529)27 km
31Superior Plumbing & Heating of Kitchener884.8★ (40)In Kitchener
32All Year Heating and Cooling Inc.885.0★ (59)9 km
33City Heating and Cooling884.8★ (273)20 km
34Jambreeze Heating And Cooling885.0★ (115)17 km
35Air Pro Services884.8★ (29)In Kitchener
36AirCon Inc.874.7★ (27)In Kitchener
37Constant Home Comfort Waterloo874.7★ (81)9 km
38Ultra Plumbing & HVAC875.0★ (15)In Kitchener
39BreezeCome Home Services/Quality Breeze 清风到家 服务到家874.8★ (47)10 km
40Hy-Mark Home Comfort874.8★ (450)30 km
41Valley Mechanical875.0★ (54)15 km
42moe Heating & Air Conditioning Systems875.0★ (12)In Kitchener
43Adaptive Mechanical Inc864.8★ (89)17 km
44CMS Heating & Cooling865.0★ (24)10 km
45Markle Heating & Cooling Inc865.0★ (19)9 km
46Local Own Comfort865.0★ (113)29 km
47Platinum Home Comfort865.0★ (36)17 km
48DAVIS MECHANICAL HEATING AND COOLING854.3★ (10)In Kitchener
49Guelph ClimateCare854.7★ (164)25 km
50Synergy Heating And Cooling Inc855.0★ (53)22 km

How we ranked emergency HVAC contractors in Kitchener

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 Kitchener: questions

Which HVAC contractors in Kitchener 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., LG Home Comfort KWC and Advance Heating & Cooling KW.

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

Aire One Heating & Cooling KW is #1, with a CR Score of 96 out of 100 on emergency weights.

How are emergency HVAC contractors in Kitchener 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 Kitchener

  1. October 2026: CR Scores recalculated for 287 hvac contractors serving Kitchener.

More emergency and heating and cooling pages