Book a Free, In-Home Consultation

Book a Free, In-Home
Consultation and Quote

For Service please call 905-898-6707

We provide the best Heating & 
Air Conditioning Services 
in Newmarket
& Surrounding Area since 1981


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

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 a TSSA Registered Fuels 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.