About S. R. Gillis & Sons Ltd. Heating and Air Conditioning

HRAI Services

Established in 1981, S.R. Gillis & Sons Ltd. is a family owned and operated heating and air conditioning business. We became Newmarket’s go-to Carrier dealer in 1983 and celebrated our 35th Anniversary with Carrier in 2018. We ensure quality workmanship by having all of our own employees and never using subcontractors for our jobs.


We are an Electrical Safety Authority ACP Contractor and are a member of the Canadian Federation of Independent Business and the Heating, Refrigeration and Air Conditioning Contractors of Canada. For your safety and peace of mind, we are fully insured and Workplace Safety and Insurance Board compliant.

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