Laird and Son Heating and Air Conditioning have been providing Heating and Air Conditioning Sales and Service for over 60 Years. Laird and Son specializes in furnace service, repairs and installations as well as air conditioning service, repairs and installations. Central air conditioning is the most common type of air conditioner amongst our customers and ductless air conditioning units are growing in popularity especially in homes that don't have ductwork. Laird and Son specializes in boilers for hot water radiator heating systems and is also a major supplier of heating oil & furnace oil for thousands of customers in Toronto and the GTA. As a Toronto Air Conditioning & Heating Contractor, Laird and Son proudly serves its customers in Toronto and the GTA including, North York, Etobicoke, Scarborough, Don Mills, Leaside, Rosedale, Forest Hill, Beaches, Danforth, Markham, Pickering, Ajax, Whitby and Oshawa.