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Emergency HVAC Contractors in Concord, ON (2026)

Top 50 of 891 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 Concord: 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 Concord at a glance

Top emergency HVAC contractors in Concord at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Enercare664.9★ (9,609)Vaughan, 6 km away24/7
2Reliance Heating, Air Conditioning & Plumbing664.9★ (10,870)Richmond Hill, 9 km away24/7
3Enercare664.8★ (11,186)North York, 9 km away24/7
4Smile HVAC655.0★ (1,314)Vaughan, 3 km away24/7
5Go Lime644.8★ (6,512)North York, 13 km away24/7
6Reliance Heating, Air Conditioning & Plumbing644.7★ (9,158)North York, 13 km away24/7
7LG Home Comfort644.6★ (2,421)Vaughan, 2 km away24/7
8Reliance Heating, Air Conditioning & Plumbing644.8★ (20,445)Mississauga, 24 km away24/7
9Maple Air - Heating, Cooling & Electrical644.8★ (1,309)Vaughan, 3 km away24/7
10Enercare634.9★ (4,281)Etobicoke, 19 km away24/7

Call an emergency HVAC contractor in Concord 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 Concord, 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 891 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 Concord

    #1 Enercare

    Based in Vaughan, 6 km away

    66/100CR Score

    Ranked #1 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

  3. #3 Enercare

    Based in North York, 9 km away

    66/100CR Score

    Ranked #3 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

  4. #4 Smile HVAC

    Based in Vaughan, 3 km away

    65/100CR Score

    Ranked #4 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

  5. #5 Go Lime

    Based in North York, 13 km away

    64/100CR Score

    Ranked #5 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 LG Home Comfort

    Based in Vaughan, 2 km away

    64/100CR Score

    Ranked #7 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

  10. #10 Enercare

    Based in Etobicoke, 19 km away

    63/100CR Score

    Ranked #10 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

  11. #11 Enercare

    Based in North York, 6 km away

    63/100CR Score

    Ranked #11 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

  13. #13 Enercare

    Based in Brampton, 23 km away

    63/100CR Score

    Ranked #13 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

  15. #15 Martino HVAC

    Based in Vaughan, 2 km away

    63/100CR Score

    Ranked #15 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

  17. #17 Enercare

    Based in Brampton, 28 km away

    63/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.9★ from 7,135 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 7,135 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5 Lowry Dr, Brampton, ON L7A 1A3
    View profile for Enercare(905) 488-2186

  19. #19 PRO CLIMATE

    Based in Vaughan, 1 km away

    62/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 242 Google reviews, listed on Google as “HVAC contractor”.

    • 4.9★ from 242 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    470 N Rivermede Rd #13, Vaughan, ON L4K 3R8
    View profile for PRO CLIMATE(888) 950-8008

  21. #21 Enercare

    Based in North York, 12 km away

    62/100CR Score

    Ranked #21 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

  22. #22 HVAC Trust

    Based in Richmond Hill, 8 km away

    62/100CR Score

    Ranked #22 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 ICare Home Comfort

    Based in Markham, 13 km away

    62/100CR Score

    Ranked #23 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

  25. #25 Royal Air Solutions

    Based in Markham, 6 km away

    62/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 271 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 271 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    168 Steeles Ave E, Markham, ON L3T 1A5
    View profile for Royal Air Solutions(416) 827-1916

Top 50 of 891 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 Concord, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26A Plus Quality Inc624.8★ (178)In Concord
27Climax Heating & Air Conditioning - Condo HVAC Service624.9★ (529)11 km
28Econoair Heating & Cooling Inc624.9★ (435)9 km
29Husky Heating and Air Conditioning624.6★ (321)1 km
30DeMark Home Ontario624.9★ (255)6 km
31Empower Home Comfort624.8★ (546)10 km
32Constant Home Comfort624.8★ (583)11 km
33ONAS Heating & Cooling Corp. O/A Ontario Air Services625.0★ (143)4 km
34Aire One Heating & Cooling624.8★ (480)11 km
35Energy Clean Heating and Air Systems624.9★ (294)9 km
36Hudson Condominium Solutions Inc625.0★ (694)18 km
37Reliance Heating, Air Conditioning & Plumbing624.7★ (1,854)19 km
38Summers and Smith Cooling & Heating Limited624.9★ (1,559)22 km
39BreezeCome Home Service/Quality Breeze 清风到家 服务到家614.8★ (481)12 km
40Dr HVAC614.7★ (1,957)21 km
41The HOUSE DEPOT CORP.614.7★ (293)6 km
42Eco Star Home Services Co.614.7★ (490)11 km
43Enercare614.8★ (2,085)24 km
44Hargrave Heating & Air Conditioning614.9★ (366)13 km
45Service Express HVAC614.9★ (384)13 km
46Superior Care Home Services Inc.615.0★ (266)12 km
47Air Quality Dunrite614.7★ (177)4 km
48Bay Tech Heating and Cooling615.0★ (223)12 km
49A Plus Air Systems614.7★ (460)12 km
50AtlasCare Heating & Cooling614.8★ (6,594)36 km

How we ranked emergency HVAC contractors in Concord

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 Concord: questions

Which HVAC contractors in Concord are open 24/7?

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

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

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

How are emergency HVAC contractors in Concord 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 Concord

  1. October 2026: CR Scores recalculated for 891 hvac contractors serving Concord.
  2. October 2026: 4 duplicate listings merged.

More emergency and heating and cooling pages