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Emergency HVAC Contractors in Toronto, ON (2026)

Top 50 of 881 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 Toronto: Enercare, 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 Toronto at a glance

Top emergency HVAC contractors in Toronto at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Enercare664.8★ (11,186)North York, 4 km away24/7
2Enercare654.9★ (9,609)Vaughan, 15 km away24/7
3Reliance Heating, Air Conditioning & Plumbing654.9★ (10,870)Richmond Hill, 16 km away24/7
4Go Lime654.8★ (6,512)North York, 11 km away24/7
5Reliance Heating, Air Conditioning & Plumbing654.7★ (9,158)North York, 11 km away24/7
6Enercare654.9★ (4,281)Etobicoke, 12 km away24/7
7Reliance Heating, Air Conditioning & Plumbing654.7★ (1,854)Toronto24/7
8Reliance Heating, Air Conditioning & Plumbing644.8★ (20,445)Mississauga, 22 km away24/7
9Hudson Condominium Solutions Inc645.0★ (694)Toronto24/7
10Enercare644.7★ (1,470)North York, 4 km away24/7

Call an emergency HVAC contractor in Toronto 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 Toronto, 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 881 is on the HVAC contractors page.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Toronto

    #1 Enercare

    Based in North York, 4 km away

    66/100CR Score

    Ranked #1 because of its Google rating and trade focus: 4.8★ from 11,186 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 11,186 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    37 Dufflaw Rd, North York, ON M6A 2W2
    View profile for Enercare(416) 640-1206

  2. #2 Enercare

    Based in Vaughan, 15 km away

    65/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 9,609 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 9,609 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    261 Trowers Rd, Vaughan, ON L4L 5Z8
    View profile for Enercare(905) 266-0219

  4. #4 Go Lime

    Based in North York, 11 km away

    65/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 6,512 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 6,512 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2225 Sheppard Ave E, North York, ON M2J 5C2
    View profile for Go Lime(877) 747-8292

  6. #6 Enercare

    Based in Etobicoke, 12 km away

    65/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.9★ from 4,281 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 4,281 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    123 Judge Rd, Etobicoke, ON M8Z 3L2
    View profile for Enercare(416) 849-6579

  10. #10 Enercare

    Based in North York, 4 km away

    64/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.7★ from 1,470 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 1,470 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Enercare(647) 475-3687

  11. #11 City Home Comfort

    Based in Toronto

    63/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.7★ from 697 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 697 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    710 Kingston Rd, Toronto, ON M4E 1R7
    View profile for City Home Comfort(416) 556-8368

  12. #12 Empower Home Comfort

    Based in Toronto

    63/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 546 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 546 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    3080 Yonge St suite #6060, Toronto, ON M5M 1A2
    View profile for Empower Home Comfort(647) 696-7487

  13. #13 Enercare

    Based in North York, 6 km away

    63/100CR Score

    Ranked #13 because of its Google rating and trade focus: 4.8★ from 1,154 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 1,154 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for Enercare(647) 288-1634

  16. #16 Enercare

    Based in Brampton, 25 km away

    63/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.9★ from 6,242 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 6,242 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    278 Rutherford Rd S, Brampton, ON L6W 3K7
    View profile for Enercare(905) 488-2187

  17. #17 Smile HVAC

    Based in Vaughan, 15 km away

    63/100CR Score

    Ranked #17 because of its Google rating and trade focus: 5.0★ from 1,314 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 1,314 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8540 Keele St Unit 41, Vaughan, ON L4K 2A6
    View profile for Smile HVAC(437) 777-4555

  18. #18 DeMark Home Ontario

    Based in Toronto

    63/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.9★ from 255 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 255 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4255 Weston Rd unit-B, Toronto, ON M9L 1W8
    View profile for DeMark Home Ontario(647) 847-2998

  21. #21 LG Home Comfort

    Based in Vaughan, 14 km away

    62/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.6★ from 2,421 Google reviews, listed on Google as “HVAC contractor”.

    • 4.6★ from 2,421 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    301 Bradwick Dr, Vaughan, ON L4K 1K5
    View profile for LG Home Comfort(866) 438-5442

Top 50 of 881 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 Toronto, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Enercare624.9★ (7,135)31 km
27Peel Heating & Air Conditioning624.8★ (3,190)23 km
28Dr HVAC and Plumbing (Toronto)624.9★ (287)6 km
29Enercare624.8★ (2,085)20 km
30High Efficiency Cooling & Heating Inc.624.8★ (1,319)17 km
31ICare Home Comfort624.9★ (836)16 km
32AtlasCare Heating & Cooling624.8★ (6,594)30 km
33Furnace King Home Services624.9★ (701)16 km
34Climax Heating & Air Conditioning - Condo HVAC Service624.9★ (529)14 km
35Air Point Heating & Cooling615.0★ (431)15 km
36Imperial Heating and Cooling614.8★ (109)In Toronto
37Royal Air Solutions615.0★ (271)11 km
38Service Line Warranties of Canada614.4★ (306)In Toronto
39Dupont Heating & Air Conditioning Ltd614.3★ (372)In Toronto
40Expert GTA Electric615.0★ (180)8 km
41BreezeCome Home Service/Quality Breeze 清风到家 服务到家614.8★ (481)14 km
42Constant Home Comfort614.8★ (583)15 km
43Dr HVAC614.7★ (1,957)23 km
44GTA HVAC Services614.9★ (152)7 km
45HVAC Trust614.9★ (465)16 km
46Hyper Heating & Cooling615.0★ (135)7 km
47Aire One Heating & Cooling614.8★ (480)15 km
48Easy Flow Hvac Toronto615.0★ (56)In Toronto
49Econoair HVAC Services Toronto614.9★ (64)In Toronto
50Martino HVAC614.7★ (631)14 km

How we ranked emergency HVAC contractors in Toronto

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. 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
Reputation15%Google star rating, adjusted for how many reviews back it
Credentials15%Active state license, bond and workers’ comp on file
Review volume10%Number of Google reviews, compared with the most-reviewed business on the list
Recency5%Share of reviews from the last 12 months
Availability15%Weekly open hours, Saturday, Sunday, 24/7 or same-day
Trade focus10%How clearly the business does this trade (its Google category and name)
Proximity5%Based in the city scores highest, less the farther away it is
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodically
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there are

Emergency HVAC contractors in Toronto: questions

Which HVAC contractors in Toronto are open 24/7?

25 on this list post 24/7 hours, including Enercare, Enercare, Reliance Heating, Air Conditioning & Plumbing, Go Lime and Reliance Heating, Air Conditioning & Plumbing.

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

Enercare is #1, with a CR Score of 66 out of 100 on emergency weights.

How are emergency HVAC contractors in Toronto ranked?

Emergency lists move 10 points of the CR Score from reputation to availability: 15% and 15%. 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 Toronto

  1. October 2026: CR Scores recalculated for 881 hvac contractors serving Toronto.
  2. October 2026: 4 duplicate listings merged.

More emergency and heating and cooling pages