Best HVAC Contractors near Loyalist, ON

These companies serve Loyalist from nearby bases in towns including Kingston, Odessa and Yarker.

15 companies listed · 5 open 24/7 · 5 open weekends · 11 rated 4.5+ · 5 show a licence

Data verified October 21, 2026

Kyro Mechanical

Kyro Mechanical

4.9 50 reviews
“From getting a same day appointment for getting my A/C problem diagnosed, to the super friendly and helpful technician Tyler calling to quickly source a part and do the repair, we are very impressed and grateful.”
Free consultationOpen 24 hoursSince 2019
Kingston, ON · 14 km from Loyalist
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Kingston Home Services by Enercare

Kingston Home Services by Enercare

4.9 50 reviews
“He gave us some great and honest information and advice about out ageing A/C unit.”
Coupons & offersFree estimatesLicensedOpen 24 hours
Kingston, ON · 14 km from Loyalist
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Dows Climatecare

Dows Climatecare

4.9 50 reviews
“Mark repaired our fireplace and thermostat in a timely manner and was very kind.”
Coupons & offers24/7 emergency serviceFinancing availableServes Kingston, Trenton +6Maintenance planFree consultation
Kingston, ON · 14 km from Loyalist
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Tozer Heating & Air

Tozer Heating & Air

5.0 50 reviews
“Excellent customer service, and the installation team of Kenny & Rob were fantastic!”
Free estimatesSince 2008Serves KingstonFamily-ownedMaintenance plan $12/moFinancing
Kingston, ON · 14 km from Loyalist
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Exclusive Cooling

Exclusive Cooling

4.5 47 reviews
“We called Exclusive Cooling and they had people out fixing our air conditioner within two hours the same day we could not ask for better service.”
Free consultationEmergency serviceSince 2015Financing
Kingston, ON · 14 km from Loyalist
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Haven Home Heating & Air Conditioning

Haven Home Heating & Air Conditioning

4.9 48 reviews
“Harmen did a great job on our HVAC maintenance even dealing with a dead mouse and snakes - thanks!”
24/7 emergency service29+ yearsServes Kingston, Gananoque +18Licensed
Kingston, ON · 14 km from Loyalist
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The 15 companies listed for Loyalist, ON handle furnaces and heat pumps in winter and the cooling side in summer. Profiles repeat what each firm publishes about hours, licensing and brands, with ratings and review quotes gathered from public reviews.

Area overview: Loyalist, ON

The 15 companies on this page are rated from 4.3 to 5.0 across 5,576 reviews; 8 have 50 or more reviews and 11 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (89%), responsiveness (83%) and punctuality (75%). The topics that come up most in reviews of the companies on this page are "efficient", "price" and "estimates". 5 are open around the clock and 5 are open on weekends. 5 show a licence on their websites. 6 have ten or more years of experience, the longest 22 years. 10 offer emergency call-outs; 1 offers remote or virtual consultations; 4 offer financing or payment plans; 7 give free estimates; 2 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for 14 of the companies on this page; 10 publish a contact page; 8 list a public email and 1 takes bookings online. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.

Which companies listed for Loyalist answer no-heat calls at night?

Round the clock cover is stated in 5 of the 15 listings here. On a winter night that call is worth making early, because a house left without heat can freeze pipes before morning. Expect a temporary fix and a return visit once parts are available.

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Haagsma Heating & Air Conditioning

Haagsma Heating & Air Conditioning

5.0 50 reviews
“Pete continues to provide prompt and professional furnace, AC and fireplace maintenance.”
Serves Kingston, OntarioSince 2015
Kingston, ON · 14 km from Loyalist
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Kingston Home Heating

Kingston Home Heating

4.3 41 reviews
“This is a great place to have your furnace repaired, inspected or if you need to buy a new furnace like we had to.”
Coupons & offersSince 1990Serves Kingston
Kingston, ON · 14 km from Loyalist
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H Mann Heat & Cool

H Mann Heat & Cool

4.9 21 reviews
“They are an excellent local business that I am recommending to my friends.”
19+ yearsFamily-ownedFree consultationOpen 24 hours
Yarker, ON · 8 km from Loyalist
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Farley Heating Inc.

Farley Heating Inc.

4.5 22 reviews
“The administrative aspects of the installation were handled competently by Aja - a further assurance that I picked the right company for the job.”
24/7 emergency serviceFinancing availableSince 2013Serves KingstonFamily-ownedVirtual consultations
Kingston, ON · 14 km from Loyalist
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Lasher Glen Home Comfort Service

Lasher Glen Home Comfort Service

4.3 27 reviews
“What a lovely experience, my service was on time with great results.”
Free estimatesLicensed & insured24/7 emergency serviceSince 1952Serves Kingston, Belleville
Odessa, ON · 5 km from Loyalist
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GT Air Systems

GT Air Systems

4.4 16 reviews
“Quotes have been reasonable and they have been responsible for their work when a new problem arises with a machine they serviced.”
Emergency serviceSince 2004
Kingston, ON · 14 km from Loyalist
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Wylie Electric

Wylie Electric

4.9 5 reviews
“They show up on time and their work is good.”
ECRA/ESA licence #700246224/7 emergency serviceSince 1995Serves Eastern OntarioFree consultation
Kingston, ON · 14 km from Loyalist
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True Comfort Heating & Cooling Ltd

True Comfort Heating & Cooling Ltd

4.3 18 reviews
“I have done two installs with them straight up a great company.”
Serves Adolphustown, Amherstview +15
Napanee, ON · 16 km from Loyalist
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Airon Hvacr United

Airon Hvacr United

5.0 1 review
Kingston, ON · 14 km from Loyalist
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Why these companies made our list

What customers say about companies near Loyalist

  • “The customer service from beginning to end was exceptional and our new heat pump runs like a dream.” — customer of GT Air Systems
  • “The technician (Nick) was friendly and professional. He fixed my air conditioner quickly and respected my time.” — customer of Haven Home Heating & Air Conditioning
  • “Very polite knowledgeable service. They had my air conditioner fixed very quickly.” — customer of Kyro Mechanical

Excerpts from public reviews of the companies listed on this page.

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