Best HVAC Contractors in Windsor, ON

24 companies listed · all 24 in Windsor · 8 open 24/7 · 16 open weekends · 18 rated 4.5+

Data verified October 18, 2026

Absolute Comfort Control Services

Absolute Comfort Control Services

4.9 132 reviews
“Tyler was very polite and educated me on dehumidifier on what dials to turn on in winter and what to turn off for the summer was knowledgeable and professional”
Coupons & offersLicensedOpen 24 hoursSince 2011Family-ownedFinancing
4080 North Service Rd E #2
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Fahrhall Home Comfort Specialists

Fahrhall Home Comfort Specialists

4.7 132 reviews
“The installers were efficient, courteous and kept the house clean with mats and swept up the floor before leaving.”
Coupons & offersFree estimates24/7 emergency serviceSince 1967Serves Windsor-Essex, Chatham-KentFinancing
3822 Sandwich St.
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Affordable Heating & Cooling

Affordable Heating & Cooling

4.7 72 reviews
“Every question I asked, she answered, in detail, and explained what she was doing or checking during the whole process”
Coupons & offers24/7 emergency serviceFinancing availableSince 2002Serves Windsor, LaSalle +6Family-owned
1428 Erie St E
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CK Mechanical Heating and Cooling Inc.

CK Mechanical Heating and Cooling Inc.

4.8 109 reviews
“In times of an emergency you can always depend on CK Mechanical”
Coupons & offers24/7 emergency service0% financingSince 2009Serves Windsor-Essex, Chatham-Kent +16Maintenance plan $14.99/mo
3846 Peter St
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Bubby's Plumbing & Heating

Bubby's Plumbing & Heating

5.0 129 reviews
“Matt and Garrett stopped by this afternoon and helped us troubleshoot a drain issue we been having in our basement bathroom.”
Free consultationLicensed & insured24/7 emergency serviceSince 2011Serves Windsor, Essex +4BBB accredited
1074 Crawford Ave
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Guaranteed Comfort Heating & Cooling

Guaranteed Comfort Heating & Cooling

4.9 90 reviews
“It has been almost 2 months since they installed a new heat pump and everything is running great so far.”
Coupons & offersLicensedOpen 24 hoursFinancing
2722 Meldrum Rd
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The 24 companies listed for Windsor, 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: Windsor, ON

All 24 companies we list here are in Windsor itself. We have 30 companies in Windsor on file; this page shows the highest-rated 24. The companies on this page are rated from 4.1 to 5.0 across 6,117 reviews; 13 have 50 or more reviews and 18 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (93%), punctuality (87%) and quality (87%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "efficient". 8 are open around the clock; 16 are open on Saturdays and 13 on Sundays. The services the companies on this page list most often on their websites are heat pumps (3), duct cleaning (2), fireplaces (2) and water heaters (2). 6 show a licence on their websites. 14 have ten or more years of experience, the longest 27 years. 12 offer emergency call-outs; 9 offer financing or payment plans; 8 give free estimates; 6 are family- or locally-owned and 7 list coupons or special offers. 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 Windsor answer no-heat calls at night?

Round the clock cover is stated in 8 of the 24 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.

Lamantia Heating & Cooling Inc

Lamantia Heating & Cooling Inc

4.9 92 reviews
“Amazing work, installed our new fan for our bathroom that works great 👍 very professional and done in very timely manner”
Free estimatesLicensed & insured24/7 emergency serviceSince 1991Serves Windsor, Windsor-EssexFinancing
9962 Little River Blvd
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Harris Heating & Air Conditioning Service Inc

Harris Heating & Air Conditioning Service Inc

4.8 111 reviews
“Good service today, as the Technician took the time to do everything right, thank you!”
Free estimatesInsured24/7 emergency serviceFinancing availableServes Windsor, Essex County +7Maintenance plan $160/yr
6555 Malden Rd #9
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Union Air Heating and Cooling

Union Air Heating and Cooling

5.0 81 reviews
“I'm very happy with the results and would highly recommend this company to anyone looking for reliable heating and air conditioning services.”
Coupons & offers24/7 emergency serviceServes Windsor, Essex CountyFamily-ownedLocally owned
3907 Tecumseh Rd E
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Langemann Heating & Cooling

Langemann Heating & Cooling

4.9 125 reviews
“Its always a pleasure when I hear John is the one doing a service call for me.”
Free estimatesInsured24/7 emergency service2,005 clients servedSince 2014Serves Windsor, Essex County +5
255 Ellis St E Unit 14
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DWD Hvac and More

DWD Hvac and More

5.0 57 reviews
“Responsive and was able to fit me in 2 days before Christmas to swap our hot water tank”
Free consultationEmergency serviceSince 2020
11302 Tecumseh Rd E Unit B
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Comfort-Tek Heating & Cooling

Comfort-Tek Heating & Cooling

4.6 51 reviews
“He diagnosed the issue right away and fixed the issue within a couple hours.”
24/7 emergency serviceSince 2016
360 Eugenie St E Unit 205
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Windsor Appliance Repair

Windsor Appliance Repair

4.4 65 reviews
“It was an issue with my stove and he was able to fix it that day.”
Licensed100% satisfaction guaranteeServes Windsor, surrounding areasFamily-owned
11500 Tecumseh Rd E
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Versatile Air Systems

Versatile Air Systems

5.0 29 reviews
“He and his team are punctual, did a fantastic job installing the new units and gave me a detailed explanation of best practices to follow for maintenance.”
Free estimatesInsuredSince 2018Serves Essex County
1390 Lauzon Rd
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R K Heating & Cooling

R K Heating & Cooling

4.4 14 reviews
“Always keeping us updated on when unit would arrive which was fast by the way, when he was dropping something at the house, very punctual & explaining the job to both hubby & I.”
Responds within 24 hoursServes Windsor, Essex CountyOpen 24 hoursSince 2017
11117 Timber Bay Crescent
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R S Craig Plumbing & Heating

R S Craig Plumbing & Heating

4.6 34 reviews
“Could never say enough positive about this family run local business from start to finish ALWAY a great experience!”
Since 2003Financing
2247 Janette Ave
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Complete Mechanical Hvac Services Inc.

Complete Mechanical Hvac Services Inc.

5.0 8 reviews
“This company has proven they put their customers first, no matter day or night they kept in contact and found the best solution to my A/C/Furnace needs.”
Free estimates24/7 emergency serviceServes Windsor, Essex CountyMaintenance planLocally owned
4255 7th Concession Rd
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Vollmer Inc

Vollmer Inc

4.1 10 reviews
“Vollmer is a first rate company with a staff that is second to non!”
24/7 emergency serviceSince 1965
3822 Sandwich St.
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KZ Plumbing and Heating

KZ Plumbing and Heating

4.4 10 reviews
“Extremely knowledgeable, very fair and shows you the problems and the best way to proceed forward.”
24/7 emergency serviceServes Windsor, Essex CountySince 2016
2567 Gatwick Ave
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South West Mechanical Services

South West Mechanical Services

24/7 emergency serviceServes Windsor-Essex, Chatham-Kent
1383 Harvest Bend Rd
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Kenwil Services Limited

Kenwil Services Limited

5.0 11 reviews
“I definitely recommended Kenwill Services to anyone needing a furnace/thermostat fix, will definitely be coming back with further home needs.”
TSSA #0076495548Since 2004
3695 Russell St
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Victor Mechanical Ltd

Victor Mechanical Ltd

4.4 7 reviews
“Fair pricing excellent workmanship and he will liaise with other workers to complete a job..”
Since 2020Financing
1447 Argyle Rd
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Spada Sheet Metal Inc

Spada Sheet Metal Inc

5.0 1 review
Since 2011
1537 McDougall St
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Forced Air Heating & Cooling Inc

Forced Air Heating & Cooling Inc

4.2 10 reviews
“Friendly professional service and high level work at a great price rate.”
#31054
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Why these companies made our list

What customers say about companies in Windsor

  • “Very professional, courteous, and did a great job on installation of new furnace in a timely manner.” — customer of Fahrhall Home Comfort Specialists
  • “They were very knowledgeable and professional and took the time to train me on use of the new smart thermostat and other elements of the system.” — customer of Guaranteed Comfort Heating & Cooling
  • “After inspection and quick fix repair on the existing furnace, Dave laid out all the new equipment options, gave his recommendation, and saved me a lot of time, money and hassle.” — customer of DWD Hvac and More
  • “Workers were pleasant , polite and did an outstanding job on the install of my outdoor furnace and air unit.” — customer of Union Air Heating and Cooling
  • “They are efficient, trustworthy and knowledgeable. It has been a pleasure to entrust them with the installation of a new furnace and air conditioner.” — customer of Comfort-Tek Heating & Cooling

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

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