Professional HVAC Contractors in Cornwall, ON

The highest-rated Heating & Air Conditioning companies out of 65 vetted & reviewed in the Cornwall area.

Walker Climatecare

Walker Climatecare

(49)
Air Purification, Air Filtration, Ventilation
“Wonderful company to rely on. Skilled, respectful and friendly personnel, flawless operation of the gas furnace they installed in my home. This season they sent Daniel, a sharp tech that made sure is all safe for the season and for the lowest heating...”
Offers Financing Options
Emergency Services
Coupons & Offers
1714 Vincent Massey Dr, Cornwall, ON K6H 5R6
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Casey Mechanical Inc

Casey Mechanical Inc

(50)
  • Technician
  • Propane
  • Furnace
“AC failed during super hot days. Went to Casey mechanical for the first time and was greeted politely by the workers and staff. Although they looked very busy Shawn came by at noon that same day, tested and repaired the ac, changing out a small part...”
Licensed
In Business Since 2000
Emergency Services
Family Business
920 Carleton St, Cornwall, ON K6H 6B9
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Marc Viau Mechanical

Marc Viau Mechanical

(20)
Air Conditioning, Heating, Snap Financial
“Hi Marc I thought I might send you a message about how pleased I am with the performance of the Rheem natural gas furnace you installed for me last October. As you probably remember I wasn't easily convinced to part with my Armstrong that had ser...”
Free Initial Consultation
Licensed
Family Business
209 Eleventh St W, Cornwall, ON K6J 3B4
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Baker Heating & Air Conditioning Ltd.

Baker Heating & Air Conditioning Ltd.

(17)
Cooling, Heating, Refrigeration
“We had one of our two fireplaces go down this weekend and called Baker on Monday morning. The technician (Travis?) showed up right after lunch as promised. He got us up and running but more importantly, after he was done, the fireplace looks brand n...”
Free Initial Consultation
In Business Since 2011
Family Business
926 Laflamme Ave, Cornwall, ON K6H 3V2
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McKay Mechanical Inc.

McKay Mechanical Inc.

(24)
  • Furnace
“Had furnace, a/c and water tank installed and oh my goodness, phenomenal, professional, kind, curious and respectful staff. Very caring, explained everything and made sure I was satisfied, super positive staff, just overall wow! I am absolutely impre...”
In Business Since 2019
880 Tenth St E, Cornwall, ON K6H 5T1
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Pat Caron Heating and Air Conditioning

Pat Caron Heating and Air Conditioning

(8)
Heating, Hvac, Air Conditioning
“Wonderful job installing our new water heater. Arrived on time and got the job done quicky. Pat and his crew cleaned up after and you would never even know they were there. Great workmanship. I highly recommend.”
Free Initial Consultation
In Business Since 2013
3050 Pitt St, Cornwall, ON K6K 1B1
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Oscar Ladouceur & Son Ltd

Oscar Ladouceur & Son Ltd

(1)
“My paperwork was ready and I was loaded very quickly 👍👍 Enter the yard from blackadder Dr. Google's satellite view makes it look like it's going to be tight but it's wide open. …”
In Business Since 2001
235 Saunders Dr, Cornwall, ON K6H 5R6
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Houde Air

Houde Air

(1)
“I recommend using Rob for your Energy efficiency design. He was great to work with. What I like best about him is that he was quick, efficient and helped me through some of the paperwork that was not part of his scope.”
6813 Rae Rd, Cornwall, ON K6H 5R5
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Boileau Mechanical Ltd

Boileau Mechanical Ltd

(11)
  • Prices
  • Hot Water
“Amazing service. Lost the water heater Sunday. We called the company on Monday morning and Yvan was taking care of the problem right away. After a couple of hours we had a new water heater. Thank you so much for the fast service. Hard to beat !”
6598 Vivian Cir, Cornwall, ON K6H 7J1
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The Water Heater Guy

The Water Heater Guy

(50)
  • Job
  • Hot Water Tank
  • Morning
“Couldn't be happier with the service that we received from this company. We emailed in with our problem and within hours we had a reply, and after some short troubleshooting over email Dylan came over immediately cleaned our water tank element and al...”
Coupons & Offers
Emergency Services
Serving Cornwall Area
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Wylie Mechanical

Wylie Mechanical

(14)
Water Heaters, Ductless Mini Splits, Gas Lines
“I recently had a ductless mini-split system installed by Wylie Mechanical, and I'm thrilled with the results. Randy took the time to explain the available options and helped me select the best system for my needs. The installation itself was swift an...”
Emergency Services
In Business Since 2021
Free Initial Consultation
Offers Financing Options
Cornwall, ON
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Chenier Mechanical

Chenier Mechanical

(10)
“I had Chenier install a new furnace, gas hot water tank, HRv and a furnace humidifier. Very professional and a neat clean job. One year laterI I had a part fail on the humidifer. I called and they took care of it right away. It's nice to see a compa...”
Offers Financing Options
In Business Since 2013
Free Initial Consultation
Locally Owned & Operated
Serving Cornwall Area
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Cody Taylor Heating & Cooling

Cody Taylor Heating & Cooling

(8)
“I cannot recommend Cody's work enough after he did an oil to gas furnace conversion for me. He is professional and an excellent communicator. His work was clean, tidy, and top notch. He went above and beyond for me and I'll happily recommend his busi...”
Emergency Services
In Business Since 2019
Cornwall, ON
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Marleau Hvac Services Ltd

Marleau Hvac Services Ltd

(2)
“Professional service, clean workmanship”
Emergency Services
In Business Since 2017
Serving Cornwall Area
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Alan Bradley Heating and Cooling

Alan Bradley Heating and Cooling

(5)
“Alan is awesome at what he does, super knowledgeable, and super friendly!! He explained my system to me and exactly what he was doing and then we had a great chat after! I would highly recommend him!!! :)”
Cornwall, ON
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Climate Control Hvac

Climate Control Hvac

In Business Since 1997
Serving Cornwall Area
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Jeff's Hvac Services

Jeff's Hvac Services

(50)
Cooling Systems, Heating Systems, Ventilation
“Jeff's team installed a new gas fireplace in our home. He was great at communicating directly with the contractor we were working with for the fireplace frame and mantel. Jeff was really patient and quick to respond to all of our questions. Excell...”
Emergency Services
Licensed
Free Initial Consultation
Serving Cornwall Area
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Fernand Denis Inc Chauffage et Air Climatisé

Fernand Denis Inc Chauffage et Air Climatisé

(50)
Furnace Repair & Service, Furnace Installation, Emergency Furnace Service
“Use Fernand Denis in 2014 to install two fireplace. Great service and great work. Work with Daniel in 2021 for quote for heating/cooling system, got quote back fast and well detail with different options.”
RBQ# 5711603001
In Business Since 2001
Emergency Services
Family Business
Serving Cornwall Area
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Atel Air Heating and Air Conditioning

Atel Air Heating and Air Conditioning

(48)
  • Questions
  • Sales
  • Furnace
“Professional, caring, and considerate of my time and home. They were wonderful and really paid attention to detail. Any questions I may have had were answered thoroughly and with patience. I would recommend ATEL to anyone looking for honest, reliable...”
Coupons & Offers
Offers Financing Options
Serving Cornwall Area
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Rockwell Heating & Air Conditioning Inc.

Rockwell Heating & Air Conditioning Inc.

(18)
Air Conditioners, Gas Piping, Natural Gas Furnaces
“Chris was recommended by a friend. Chris did the work for me this spring and I am writing this after one of the worst heat waves we have had. I had own my house from new for 18 years and in that time the A/C has never worked right. I had the insta...”
Emergency Services
20+ Years Experience
Serving Cornwall Area
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Embrun Energy

Embrun Energy

(23)
Climatisation, Chauffage, Qualité d'Air
“I contracted Embrun Energy to replace my gas furnace and electric A/C. As soon as I contacted them, the owner came to look at the job. He was very knowledgeable and professional. He understood what I wanted and made a few recommendations to improve t...”
In Business Since 2014
Serving Cornwall Area
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Andre's Furnace Sales & Service LTD

Andre's Furnace Sales & Service LTD

(8)
“Excellent service, quick responce and knowledgeable and courteous. Will call again when needed , i recomend.”
Emergency Services
In Business Since 2013
Family Business
Locally Owned & Operated
Serving Cornwall Area
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Goodrich Refrigeration Inc.

Goodrich Refrigeration Inc.

(2)
“Great folks who care about their customers.”
Emergency Services
In Business Since 2018
Family Business
Serving Cornwall Area
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Perron Heating & Cooling Inc

Perron Heating & Cooling Inc

(9)
Climatisation, Chauffage, Ventilation
“Friendly, highly professional service in English and French. Perron ran a line for a gas stove when we moved into our new house. They were friendly and professional. Even though their work would be hidden behind a stove, they carefully drilled the t...”
In Business Since 2013
Serving Cornwall Area
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HVAC, Heating & AC Services in Cornwall, ON Cost Estimates

Minimum cost
$2450
Maximum cost
$14680
National Average
$7643
Avg Per Hour Rates
$204
$5246
$10130
Average price range is based on 532 cost profiles
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Average Cost $7643
Minimum cost $2450
Maximum cost $14680
Avg Per Hour Rates $204

Average range $5246 to $10130 is based on 532 cost profiles.

Why these companies made our list

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