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Emergency HVAC Contractors in Smiths Falls, ON (2026)

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

8 of the 24 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 Smiths Falls: ServicePlus Heating and Cooling, 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 Smiths Falls at a glance

Top emergency HVAC contractors in Smiths Falls at a glance
RankBusinessCR ScoreGoogle ratingBased inHours
1ServicePlus Heating and Cooling935.0★ (70)Smiths Falls24/7
2Capital City Heating and Cooling Inc.925.0★ (341)Ottawa, 32 km away24/7
3Walker ClimateCare (formerly TRS Heating & Cooling)904.9★ (283)Brockville, 39 km away24/7
4Hemlock Heating and Cooling895.0★ (61)Perth, 13 km away24/7
5HonestAir & Home Solutions865.0★ (9)Perth, 12 km away24/7
6Murray Heating & Cooling Inc. (AKA Murray Refrigeration)854.8★ (30)Kanata, 36 km away24/7
7Rogers Refrigeration Heating & Air Conditioning814.7★ (6)Kanata, 40 km away24/7
8Ottawa Plumbing and Heating804.1★ (89)Nepean, 40 km away24/7
9J & C Heating & Cooling784.5★ (20)Perth, 16 km away—
10Comfort Pro Ltd.665.0★ (317)Carleton Place, 26 km away—

Call an emergency HVAC contractor in Smiths Falls 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 24 emergency HVAC contractors in Smiths Falls, ranked

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

  9. #9 J & C Heating & Cooling

    Based in Perth, 16 km away

    78/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.5★ from 20 Google reviews, listed on Google as “HVAC contractor”.

    Based on 5 of 8 factors; credentials, recency and availability not yet collected.

    • 4.5★ from 20 Google reviews
    Address
    2595 Rideau Ferry Rd, Perth, ON K7H 0G5
    View profile for J & C Heating & Cooling(613) 264-8800

  10. #10 Comfort Pro Ltd.

    Based in Carleton Place, 26 km away

    66/100CR Score

    Ranked #10 because of its Google rating and trade focus: 5.0★ from 317 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 317 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    50 Bennett St Unit 5, Carleton Place, ON K7C 4J9
    View profile for Comfort Pro Ltd.(613) 253-4277

  11. #11 Denoco Energy Systems Ltd

    Based in Smiths Falls

    66/100CR Score

    Ranked #11 because of its Google rating and trade focus: 4.6★ from 102 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.6★ from 102 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    2 Victoria Ave, Smiths Falls, ON K7A 1E3
    View profile for Denoco Energy Systems Ltd(613) 283-0574

  12. #12 Carleton Refrigeration Heating & Air Conditioning Ltd

    Based in Carleton Place, 29 km away

    63/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.7★ from 218 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.7★ from 218 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    150 Industrial Ave, Carleton Place, ON K7C 3T2
    View profile for Carleton Refrigeration Heating & Air Conditioning Ltd(613) 257-8282

  13. #13 Precision HVAC | Home Heating & Cooling | Ottawa & Area

    Based in Smiths Falls

    62/100CR Score

    Ranked #13 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 12 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    14 Marguerite St, Smiths Falls, ON K7A 5H1
    View profile for Precision HVAC | Home Heating & Cooling | Ottawa & Area(613) 284-7887

  14. #14 TBG Mechanical Solutions Limited

    Based in Carleton Place, 29 km away

    62/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.8★ from 91 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.8★ from 91 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    130 Industrial Ave Unit 420, Carleton Place, ON K7C 3C4
    View profile for TBG Mechanical Solutions Limited(613) 229-4822

  15. #15 Brockville HVAC Inc.

    Based in Brockville, 27 km away

    61/100CR Score

    Ranked #15 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 5.0★ from 41 Google reviews
    Hours
    Mon–Fri 8 AM–6 PM · Sat 9 AM–6 PM · Sun 8 AM–6 PM
    View profile for Brockville HVAC Inc.(613) 802-9263

  17. #17 McNamee Plumbing & Heating

    Based in Perth, 20 km away

    59/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.2★ from 34 Google reviews, listed on Google as “HVAC contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.2★ from 34 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    9 Lanark Rd, Perth, ON K7H 2R9
    View profile for McNamee Plumbing & Heating(613) 267-2378

  18. #18 Fireplaces Unlimited Heating & Cooling, Duct Cleaning - Brockville

    Based in Brockville, 39 km away

    59/100CR Score

    Ranked #18 because of its Google rating and review volume: 4.9★ from 283 Google reviews, 283 Google reviews.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 283 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat 10 AM–2 PM · Sun closed
    Address
    3518 Coons Rd, Elizabethtown-Kitley, ON K6T 1A7
    View profile for Fireplaces Unlimited Heating & Cooling, Duct Cleaning - Brockville(613) 498-2988

  19. #19 Comfort Zone Insulation

    Based in Perth, 18 km away

    57/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.9★ from 27 Google reviews, listed on Google as “Insulation contractor”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 27 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    8 Herriott St, Perth, ON K7H 1S9
    View profile for Comfort Zone Insulation(613) 267-0066

  20. #20 Purdy Plumbing & Heating Inc

    Based in Carleton Place, 29 km away

    55/100CR Score

    Ranked #20 because of its Google rating and trade focus: 4.7★ from 26 Google reviews, listed on Google as “Plumber”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.7★ from 26 Google reviews
    Hours
    Mon–Fri 7 AM–4 PM · Sat–Sun closed
    Address
    61 Industrial Ave, Carleton Place, ON K7C 3T2
    View profile for Purdy Plumbing & Heating Inc(613) 257-4628

  21. #21 Reabel's Plumbing & Heating

    Based in Brockville, 40 km away

    53/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.7★ from 28 Google reviews, listed on Google as “Plumber”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.7★ from 28 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3592 Centennial Rd, Brockville, ON K6V 5T4
    View profile for Reabel's Plumbing & Heating(613) 342-2642

  22. #22 Houle Plumbing & Heating

    Based in Brockville, 39 km away

    53/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 18 Google reviews, listed on Google as “Plumber”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.9★ from 18 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    3512 Coons Rd, Brockville, ON K6T 1A7
    View profile for Houle Plumbing & Heating(613) 345-3678

  24. #24 Townend Plumbing & Heating

    Based in Carleton Place, 28 km away

    52/100CR Score

    Ranked #24 because of its Google rating and trade focus: 4.2★ from 15 Google reviews, listed on Google as “Plumber”.

    Based on 6 of 8 factors; credentials and recency not yet collected.

    • 4.2★ from 15 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    162 Munro St, Carleton Place, ON K7C 1H1
    View profile for Townend Plumbing & Heating(613) 257-2812

How we ranked emergency HVAC contractors in Smiths Falls

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 Smiths Falls: questions

Which HVAC contractors in Smiths Falls are open 24/7?

8 on this list post 24/7 hours, including ServicePlus Heating and Cooling, Capital City Heating and Cooling Inc., Walker ClimateCare (formerly TRS Heating & Cooling), Hemlock Heating and Cooling and HonestAir & Home Solutions.

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

ServicePlus Heating and Cooling is #1, with a CR Score of 93 out of 100 on emergency weights.

How are emergency HVAC contractors in Smiths Falls 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?

24 of the 24 businesses ranked in full list a phone number. Tap Call to dial it.

Update log for Smiths Falls

  1. October 2026: CR Scores recalculated for 24 hvac contractors serving Smiths Falls.

More emergency and heating and cooling pages