The Best Toronto Furnace, Air Conditioning & Heating Service Contractors

When your a customer of Laird & Son you become our reason for doing what we do.

Ensuring your Comfort and Safety. over 60 years Laird and Son Heating and Air Conditioning has been there to take care of our customers across the GTA, serving the Downtown Toronto region, Markham, Scarborough, Richmond Hill and North Toronto. If you are outside of our service area please call us and we will do our best to help!

For over three generations, Laird & Son has stayed true to its founding principle: making sure that every customer is completely satisfied. Google+


Emergency Furnace, Air Conditioning and Heating Services

Laird and Son Heating and Cooling Toronto ONWe are a family owned and operated company and one of the most experienced HVAC companies in Toronto. Laird & Son is the oldest independent Lennox dealer in Canada and we operate on values that place the customer first by providing prompt 24 hour emergency service for furnace repair, boiler repair, air conditioner service and installation, and tankless water heater repair.

Laird & Son Fuels Ltd. can provide service on oil furnaces, new tank installations as well as automatic fuel delivery. We take pride in carrying the best equipment for fair prices. Our reputation precedes us with 90% of our business resulting from referrals and existing customers. We love to do a great job, read your online reviews, see our customers smile, and then hear the neighbours call us about the friendly HVAC contractor or prompt air conditioning service.

Licensing & Training HVAC Contractors

Laird and Son Heating and Cooling Toronto ONHomeowners need protection from accidents and hazards. Equipment needs protection from improper installation. Laird & Son provides the best training and licensing, compliant with codes, bylaws and workplace safety.

hvac contractors torontoOur company is TSSA registered, Metro licensed, and owner Neil Laird is an HRAI member. His company is WSIB compliant and has $5,000,000 liability insurance, and holds his employees accountable for behaviour and cleanliness. Drop sheets are used on all jobs and plastic shoe covers on boots to keep your carpets clean and floors safe.


Our Safety & Protection

All service technicians and installers wear uniforms. All of our trucks are boldly lettered. There is no mistaking who knocks on your door. When sub-contractors are used for work such as removals and chimney liners, they are TSSA compliant (meaning they have proper licence and insurance coverage). You are protected from accident liability when dealing with Laird and Son.

Affiliates - Laird and Son



Laird and Son has spent decades building relationships with organizations and we are proud to be affiliated with the following:

Memberships - Laird and Son Toronto ON


Oldest Independent Lennox Dealer in Canada

Lennox Products - Laird and SonWe service and install boilers and radiant heat, service and install gas furnaces and air conditioners, install full duct systems, service and install attic air conditioning systems (high velocity and low velocity). We install gas, electric and oil fired water heaters, tankless water heaters and combination boilers that provide hydronic heat and domestic hot water with one unit.

Laird & Son Fuels Ltd. still delivers oil and services oil burners. We convert oil heated homes to gas and specialize in servicing older homes. We provide service to new homes and are experts in conditioning renovations and additions.

SNAP Financial Services

Laird and Son FinancingReally, it’s no problem. At Laird and Son Toronto heating and cooling, we have HVAC financing available through SNAP financial services. You can finance your new furnace, air conditioner or complete system at reasonable interest rates with no down payment.

Monthly payments are lowered with 12 year terms that allow you to pay down or pay off the loan at any time with no penalty.