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Emergency HVAC Contractors in Greater Sudbury, ON (2026)

38 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank

12 of the 38 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 Greater Sudbury: Reliance Heating, Air Conditioning & Plumbing, 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 Greater Sudbury at a glance

Top emergency HVAC contractors in Greater Sudbury at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1Reliance Heating, Air Conditioning & Plumbing684.8★ (4,981)Greater Sudbury24/7
2669-Heat674.8★ (2,142)Greater Sudbury24/7
3Greater Sudbury Plumbing and Heating634.8★ (221)Greater Sudbury24/7
4One Source Home Services624.8★ (99)Greater Sudbury24/7
5Mr. Pipes Plumbing, Heating & Air Conditioning614.5★ (58)Greater Sudbury24/7
6Eco Air Hvac604.8★ (20)Greater Sudbury24/7
7Classic heating & cooling604.8★ (16)Greater Sudbury24/7
8Al's Plumbing And Heating Ltd.604.3★ (23)Greater Sudbury24/7
9Nick Mac's Mechanical & HVAC-R595.0★ (9)Greater Sudbury24/7
10Ductcheck Sudbury Duct Cleaning Service & Inspection594.6★ (9)Greater Sudbury24/7

Call an emergency HVAC contractor in Greater Sudbury 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 38 emergency HVAC contractors in Greater Sudbury, ranked

24/7 first, then same-day service, then the rest. Each group is in CR Score order on emergency weights.

  2. #2 669-Heat

    Based in Greater Sudbury

    67/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.8★ from 2,142 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 2,142 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1360 Kelly Lake Rd unit 3, Greater Sudbury, ON P3E 5P4
    View profile for 669-Heat(705) 806-8382

  4. #4 One Source Home Services

    Based in Greater Sudbury

    62/100CR Score

    Ranked #4 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 99 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    250 Fielding Rd Unit #4, Greater Sudbury, ON P3A 2A3
    View profile for One Source Home Services(705) 690-3239

  6. #6 Eco Air Hvac

    Based in Greater Sudbury

    60/100CR Score

    Ranked #6 because of its Google rating and trade focus: 4.8★ from 20 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 20 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1890 Hubert St, Greater Sudbury, ON P3N 1M1
    View profile for Eco Air Hvac(249) 878-7006

  7. #7 Classic heating & cooling

    Based in Greater Sudbury

    60/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.8★ from 16 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 16 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4381 Hamilton Crescent, Hanmer, ON P3P 1B7
    View profile for Classic heating & cooling(705) 920-1341

  12. #12 MyHome Heating and Cooling

    Based in Greater Sudbury

    58/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 3 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    295 Pilotte Rd, Garson, ON P3L 1J8
    View profile for MyHome Heating and Cooling(705) 207-4917

  13. #13 PLF Heating Ltd

    Based in Greater Sudbury

    48/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “HVAC contractor”.

    Based on 7 of 10 factors; credentials, recency and availability not yet collected.

    • 5.0★ from 3 Google reviews
    Address
    57 Mont Adam St, Greater Sudbury, ON P3B 2V1
    View profile for PLF Heating Ltd(705) 560-1500

  14. #14 Campeau Heating

    Based in Greater Sudbury

    47/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.7★ from 1,448 Google reviews, listed on Google as “Air conditioning contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.7★ from 1,448 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 9 AM–1 PM · Sun closed
    Address
    2288 Lasalle Blvd, Greater Sudbury, ON P3A 2B1
    View profile for Campeau Heating(705) 230-6410

  15. #15 Borts HVAC

    Based in Greater Sudbury

    45/100CR Score

    Ranked #15 because of its Google rating and trade focus: 4.8★ from 237 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 237 Google reviews
    Hours
    Mon–Fri 8 AM–4:30 PM · Sat–Sun closed
    Address
    985 Lorne St, Greater Sudbury, ON P3C 3H9
    View profile for Borts HVAC(705) 521-4822

  16. #16 Northern Climate

    Based in Greater Sudbury

    45/100CR Score

    Ranked #16 because of its Google rating and trade focus: 4.8★ from 227 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 227 Google reviews
    Hours
    Mon–Fri 9 AM–4 PM · Sat–Sun closed
    Address
    1021 Kingsway Unit #1, Greater Sudbury, ON P3B 2E6
    View profile for Northern Climate(705) 586-4300

  17. #17 Witherell Plumbing & Heating

    Based in Greater Sudbury

    44/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.9★ from 148 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.9★ from 148 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    2354 Maley Dr, Garson, ON P3L 1L6
    View profile for Witherell Plumbing & Heating(705) 523-7436

  18. #18 Climate Control

    Based in Greater Sudbury

    44/100CR Score

    Ranked #18 because of its Google rating and trade focus: 4.8★ from 159 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 159 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    2353 Jarvi Rd, Greater Sudbury, ON P3G 1H1
    View profile for Climate Control(705) 207-1320

  19. #19 KC Heating & Air Conditioning

    Based in Greater Sudbury

    44/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.8★ from 99 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.8★ from 99 Google reviews
    Hours
    Mon–Fri 7 AM–3 PM · Sat–Sun closed
    Address
    3684 Montpellier Rd, Chelmsford, ON P0M 1L0
    View profile for KC Heating & Air Conditioning(705) 207-0878

  23. #23 Sensible Heating & Cooling

    Based in Greater Sudbury

    42/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 36 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 36 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    8833 ON-535, Markstay-Warren, ON P0M 2G0
    View profile for Sensible Heating & Cooling(705) 562-8366

  24. #24 Kore HVAC Services

    Based in Greater Sudbury

    42/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 26 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 5.0★ from 26 Google reviews
    Hours
    Mon–Fri 9 AM–4:30 PM · Sat–Sun closed
    Address
    868 Falconbridge Rd #13, Greater Sudbury, ON P3A 5K7
    View profile for Kore HVAC Services(705) 524-7723

  25. #25 @home Energy

    Based in Greater Sudbury

    41/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.3★ from 22 Google reviews, listed on Google as “HVAC contractor”.

    Based on 8 of 10 factors; credentials and recency not yet collected.

    • 4.3★ from 22 Google reviews
    Hours
    Mon–Fri 8:30 AM–4 PM · Sat–Sun closed
    Address
    500 Regent St, Greater Sudbury, ON P3E 3Y2
    View profile for @home Energy(705) 675-0525

All 38 HVAC contractors by emergency score

#1 to #25 are shown in full above. Here are #26 to #38, in CR Score order; each links to its profile.

HVAC contractors in Greater Sudbury, ranks 26 to 38
RankBusinessCR ScoreGoogle ratingDistance
26JEM Air Conditioning Ltd.404.8★ (10)In Greater Sudbury
27PJC TECH Heating and Air Conditioning404.9★ (9)In Greater Sudbury
28Marcel's Heating405.0★ (8)In Greater Sudbury
29Bisschops Industries404.9★ (8)In Greater Sudbury
30Cool Cat's HVAC Design405.0★ (8)In Greater Sudbury
31Nauss - Heating Fireplaces403.3★ (19)In Greater Sudbury
32PSL Patrick Sprack Limited394.9★ (14)12 km
33Northland Group395.0★ (3)In Greater Sudbury
34Mike Witherell Mechanical Ltd385.0★ (7)11 km
35ProSol Energy Systems384.9★ (116)In Greater Sudbury
36CTRL HVAC383.9★ (7)12 km
37TRADE TITANS PLUMBING & HEATING LTD374.8★ (19)In Greater Sudbury
38Bouffard Plumbing & Heating Inc363.0★ (14)In Greater Sudbury

How we ranked emergency HVAC contractors in Greater Sudbury

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 Greater Sudbury: questions

Which HVAC contractors in Greater Sudbury are open 24/7?

12 on this list post 24/7 hours, including Reliance Heating, Air Conditioning & Plumbing, 669-Heat, Greater Sudbury Plumbing and Heating, One Source Home Services and Mr. Pipes Plumbing, Heating & Air Conditioning.

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

Reliance Heating, Air Conditioning & Plumbing is #1, with a CR Score of 68 out of 100 on emergency weights.

How are emergency HVAC contractors in Greater Sudbury 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 Greater Sudbury

  1. October 2026: CR Scores recalculated for 38 hvac contractors serving Greater Sudbury.

More emergency and heating and cooling pages

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