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Serving the greater Toronto area since 1995

Emergency Service


We’re heating system specialists:

  • High efficiency, Energy Star heating systems.
  • Expert repairs on all heater makes & models.
  • Gas Heat – Oil Heat – Heat Pumps.
  • Residential & Commercial

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We offer:

  • Installation and repair of air conditioning systems big and small
  • Multi-climate zone systems
  • Wired, wireless and digital thermostats
  • Energy saving high efficiency air conditioning models

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To provide you with complete home comfort we offer thorough and professional duct cleaning services as well as:

  • Duct Sealing
  • Duct Repair
  • Dryer Vent Cleaning

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We offer:

  • Expert advice in sizing up your hot water needs
  • Whole house traditional tank water heaters
  • Energy efficient tankless water heaters
  • Emergency water heater repair services

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The technicians at Deer Heating are experienced commercial HVAC specialists:

  • Experts on commercial heating & cooling codes and guidelines
  • Commercial HVAC installation, maintenance and repair
  • Top quality commercial HVAC products

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Having regular service checks keep your systems running at peak efficiency. You can save money on these services by signing up for our maintenance program.

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Welcome to Deer Heating

Our company has been servicing the greater Toronto area for over 15 years. We have over 20,000 satisfied customers in the GTA. Our expertise is in both residential and commercial HVAC equipment. Our experienced technicians and quality installation, set us apart from our competition.

Your one stop home service company

If you need heating or air conditioning equipment, service, installation or repair, call us today. We also specialize in custom ductwork and water heaters. Our technicians have the experience to assure the job is done right the first time.

York Air Conditioning and Heating on Deer Heating Toronto


Fast and Professional

- Danny- Richmond Hill

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