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Explore 281 Trusted HVAC Contractors Serving Ontario, ON

Check the service offerings and available business details for 281 HVAC contractors across Ontario, ON, including Mississauga, Brampton and Toronto. Read customer feedback, narrow your options and contact companies suited to your heating or cooling repair or installation.
Ajax (2)
Alliston (1)
Ancaster (2)
Arnprior (1)
Aurora (3)
Ayr (1)
Bancroft (1)
Barrie (4)
Beaverton (1)
Belle River (1)
Belleville (2)
Bolton (2)
Bowmanville (1)
Brampton (12)
Brantford (1)
Burlington (3)
Caledonia (1)
Cambridge (5)
Carp (2)
Cavan (1)
Chatham (2)
Claremont (1)
Clarksburg (1)
Concord (6)
Cornwall (1)
Courtice (2)
Courtland (1)
Dunrobin (2)
East Garafraxa (2)
Elmira (1)
Embrun (2)
Etobicoke (7)
Fenelon Falls (2)
Grand Bend (1)
Gravenhurst (1)
Greater Sudbury (1)
Grimsby (1)
Guelph (1)
Haileybury (1)
Haliburton (1)
Hamilton (6)
Harrow (1)
Hartington (1)
Hawkesbury (1)
Hearst (1)
Hensall (1)
Huntsville (2)
Innisfil (1)
Kanata (2)
Kinburn (1)
Kingston (3)
Kitchener (2)
Kleinburg (1)
Leamington (2)
Lindsay (1)
Listowel (1)
Lively (1)
London (4)
Markham (10)
Maryhill (1)
Midland (2)
Milton (2)
Mississauga (16)
Moose Creek (1)
Nepean (3)
Newmarket (3)
Niagara Falls (1)
North Bay (2)
North York (7)
Oakville (5)
Oldcastle (1)
Orillia (3)
Orleans (1)
Oshawa (1)
Ottawa (9)
Owen Sound (1)
Palmerston (1)
Pefferlaw (1)
Pelham (1)
Pembroke (1)
Penetanguishene (1)
Peterborough (2)
Pickering (1)
Picton (1)
Port Hope (2)
Prescott (1)
Renfrew (1)
Richmond (1)
Richmond Hill (3)
Saint Catharines (3)
Saint Isidore (1)
Saint Thomas (2)
Sarnia (1)
Sault Sainte Marie (1)
Scarborough (5)
Scotland (1)
Selwyn (2)
Severn (1)
South Mountain (1)
Southampton (1)
Stevensville (1)
Stittsville (1)
Stoney Creek (2)
Stratford (1)
Strathroy (1)
Sydenham (1)
Thessalon (1)
Thornhill (1)
Thornloe (1)
Thorold (2)
Thunder Bay (4)
Toronto (11)
Trent Lakes (1)
Trenton (3)
Tweed (1)
Utopia (1)
Vaughan (2)
Wallaceburg (1)
Wasaga Beach (1)
Waterloo (6)
Welland (2)
Whitchurch Stouffville (1)
Williamsburg (1)
Windsor (11)
Woodbridge (2)
Not rated yet
Infiniti HVAC
Emergency
Not rated yet
We offer 24/7 emergency HVAC support for urgent heating and cooling needs.
Infiniti HVAC offers expert furnace repair, heat pump installation, and air conditioning maintenance in Kitchener. Reliable 24/7 emergency support, free consultations, and energy-efficient solutions for homes and businesses.
Furnace Repair Heat Pump Installation Air Conditioning Maintenance
(519) 741-5100 Call Profile
Not rated yet
W C Robinson & Son
28 Years
Not rated yet
Family-owned business serving the community since 1998
Trusted local plumbing, heating, and electrical services in South Mountain. Licensed experts since 1998 offering free estimates, 10-year warranties, and complete mechanical solutions.
Plumbing Heating Air Conditioning
(613) 989-2894 Call Profile
Not rated yet
Kingston Home Heating
36 Years
Emergency
Not rated yet
30+ years of HVAC expertise serving Kingston since 1990
Expert HVAC installation, repair, and maintenance services in Kingston since 1990. Certified technicians for furnaces, air conditioners, heat pumps, and air quality systems. 24/7 emergency support available.
Furnace Repair Air Conditioning Services Heat Pump Installation
(613) 389-5544 Call Profile
Not rated yet
LDR Heating & Cooling
17 Years
Emergency
Not rated yet
Certified TSSA technicians with 50+ years of combined HVAC expertise
LDR Heating & Cooling provides certified HVAC installation, maintenance, and emergency services in Thunder Bay. With 50+ years of experience and TSSA-certified technicians, we offer 24/7 support, financing options, and a 10-year warranty on new installati
Furnace Installation Air Conditioning Service Programmable Thermostats
(807) 476-6109 Call Profile
Team Harding
32 Years
Emergency
Not rated yet
Team Harding
32 Years
Emergency
Not rated yet
24/7 emergency HVAC service since 1994
Ottawa's trusted HVAC contractor since 1994. Team Harding offers furnace, air conditioner, heat pump, and fireplace services with 24/7 emergency support. Visit our Kanata showroom for home comfort solutions.
Furnace Installation Air Conditioner Repair Heat Pump Maintenance
(613) 831-2257 Call Profile
Not rated yet
About Pure Air
22 Years
Not rated yet
Our TSSA-registered technicians ensure full regulatory compliance
Trusted HVAC contractor serving Toronto and surrounding areas with heating, cooling, and water heating solutions since 2004. TSSA-registered specialists in high-efficiency systems and energy-saving technology.
High Efficiency Furnaces Tankless Water Heaters Air Duct Cleaning
(416) 464-6667 Call Profile
Not rated yet
Planet Power
Not rated yet
We guarantee a response to all service requests within 24 hours.
Planet Power delivers reliable HVAC installations, water treatment solutions, and rental services in Welland with 24-hour response times and energy-efficient systems tailored to local needs.
Maytag Furnaces Mitsubishi Heat Pumps Waterfurnace Geothermal
(905) 892-1384 Call Profile
Not rated yet
British Empire Fuels
Not rated yet
We offer 24/7 emergency HVAC and fuel support.
British Empire Fuels offers 24/7 emergency HVAC repair, propane delivery and home comfort services for residential and commercial clients across Lindsay, Kawartha Lakes and Trent Lakes, with flexible financing and transparent, affordable pricing.
HVAC Emergency Repair Propane Delivery Furnace Maintenance
(705) 738-2121 Call Profile
Not rated yet
KeepRite
Not rated yet
We offer over 100 years of heating and cooling industry experience
Discover KeepRite's advanced HVAC systems featuring high-efficiency furnaces, air conditioners, and heat pumps with industry-leading warranties and smart technology for optimal home comfort.
Air Conditioners Gas Furnaces Heat Pumps
(705) 740-0141 Call Profile
Not rated yet
Aircon Mechanical Systems
46 Years
Emergency
Not rated yet
43 years of specialized HVAC expertise in commercial projects
Trusted HVAC contractor serving Greater Toronto Area businesses with energy-efficient systems, maintenance, and retrofit solutions since 1980. Expert technicians ensure optimal building comfort.
Building Maintenance Energy-Efficient Retrofits Commercial HVAC
(905) 887-7359 Call Profile