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Emergency HVAC Contractors in Aurora, ON (2026)

Top 50 of 737 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 Aurora: Summers and Smith Cooling & Heating Limited, 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 Aurora at a glance

Top emergency HVAC contractors in Aurora at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Summers and Smith Cooling & Heating Limited654.9★ (1,559)Aurora24/7
2Reliance Heating, Air Conditioning & Plumbing654.9★ (10,870)Richmond Hill, 18 km away24/7
3Enercare634.9★ (9,609)Vaughan, 25 km away24/7
4Reliance Heating, Air Conditioning & Plumbing624.7★ (9,158)North York, 28 km away24/7
5Enercare624.8★ (11,186)North York, 32 km away24/7
6Go Lime624.8★ (6,512)North York, 28 km away24/7
7Smile HVAC625.0★ (1,314)Vaughan, 20 km away24/7
8Black Forest624.8★ (532)East Gwillimbury, 11 km away24/7
9LG Home Comfort614.6★ (2,421)Vaughan, 20 km away24/7
10Bay Tech Heating and Cooling615.0★ (223)Richmond Hill, 11 km away24/7

Call an emergency HVAC contractor in Aurora 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 Aurora, 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 737 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.

  3. #3 Enercare

    Based in Vaughan, 25 km away

    63/100CR Score

    Ranked #3 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

  5. #5 Enercare

    Based in North York, 32 km away

    62/100CR Score

    Ranked #5 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

  6. #6 Go Lime

    Based in North York, 28 km away

    62/100CR Score

    Ranked #6 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

  7. #7 Smile HVAC

    Based in Vaughan, 20 km away

    62/100CR Score

    Ranked #7 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

  8. #8 Black Forest

    Based in East Gwillimbury, 11 km away

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.8★ from 532 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 532 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    16 Mt Albert Rd, East Gwillimbury, ON L9N 1K4
    View profile for Black Forest(905) 252-9994

  9. #9 LG Home Comfort

    Based in Vaughan, 20 km away

    61/100CR Score

    Ranked #9 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

  15. #15 ICare Home Comfort

    Based in Markham, 22 km away

    61/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.9★ from 836 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 836 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1001 Denison St Unit 1-2, Markham, ON L3R 2Z6
    View profile for ICare Home Comfort(905) 399-9888

  19. #19 HVAC Trust

    Based in Richmond Hill, 19 km away

    61/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 465 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 465 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    330 Hwy 7 Unit#305, Richmond Hill, ON L4B 3P8
    View profile for HVAC Trust(855) 916-0615

  23. #23 Constant Home Comfort

    Based in Markham, 22 km away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.8★ from 583 Google reviews, listed on Google as “HVAC contractor”.

    • 4.8★ from 583 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    201 Don Park Rd Unit 2, Markham, ON L3R 1C2
    View profile for Constant Home Comfort(888) 829-1875

  24. #24 Enercare

    Based in North York, 27 km away

    60/100CR Score

    Ranked #24 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

  25. #25 Martino HVAC

    Based in Vaughan, 20 km away

    60/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.7★ from 631 Google reviews, listed on Google as “HVAC contractor”.

    • 4.7★ from 631 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    150 Connie Crescent #16, Vaughan, ON L4K 1L9
    View profile for Martino HVAC(800) 465-5700

Top 50 of 737 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 Aurora, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26The Ontario HVAC Group604.9★ (140)13 km
27Aire One Heating & Cooling604.8★ (480)21 km
28Service Express HVAC604.9★ (384)22 km
29Superior Care Home Services Inc.605.0★ (266)21 km
30Eco Star Home Services Co.604.7★ (490)20 km
31Hargrave Heating & Air Conditioning604.9★ (366)22 km
32Enercare604.8★ (2,085)35 km
33Home Trade Standards - Condo HVAC Specialists605.0★ (464)27 km
34Royal Air Solutions605.0★ (271)23 km
35Blu Hvac Inc605.0★ (32)3 km
36Affordable Comfort594.9★ (2,540)40 km
37BreezeCome Home Service/Quality Breeze 清风到家 服务到家594.8★ (481)24 km
38Peel Heating & Air Conditioning594.8★ (3,190)39 km
39Airsense Mechanical594.9★ (64)10 km
40PRO CLIMATE594.9★ (242)21 km
41Superior Plumbing & Heating of Newmarket594.8★ (38)5 km
42Climax Heating & Air Conditioning & Condo HVAC Service594.9★ (40)6 km
43Constant Home Comfort594.6★ (301)17 km
44Enercare594.7★ (1,470)32 km
45For Saving Home Service | HVAC | AC | Furance Services594.8★ (256)21 km
46Button's Heating & Air Conditioning594.9★ (1,570)38 km
47Sabbouh Mechanical595.0★ (32)7 km
48Advantage Airtech ClimateCare594.9★ (1,230)38 km
49Solidcare Home Improvements594.8★ (207)21 km
50DeMark Home Ontario594.9★ (255)27 km

How we ranked emergency HVAC contractors in Aurora

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 Aurora: questions

Which HVAC contractors in Aurora are open 24/7?

25 on this list post 24/7 hours, including Summers and Smith Cooling & Heating Limited, Reliance Heating, Air Conditioning & Plumbing, Enercare, Reliance Heating, Air Conditioning & Plumbing and Enercare.

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

Summers and Smith Cooling & Heating Limited is #1, with a CR Score of 65 out of 100 on emergency weights.

How are emergency HVAC contractors in Aurora 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 Aurora

  1. October 2026: CR Scores recalculated for 737 hvac contractors serving Aurora.
  2. October 2026: 1 duplicate listing merged.

More emergency and heating and cooling pages