About Therwood
Local, Licensed, and a Little Bit Different
Therwood isn’t just an HVAC company; we’re a fixture in the community. For over 30 years, we’ve been the local, family-owned team that shows up when it matters most. Whether it’s a mid-winter furnace fail or a summer AC emergency, we’re the neighbours you can count on for professional heating and cooling services.
Our licensed technicians don't just fix things—they do it right. Every installation and repair is guaranteed to comply with all Ontario gas codes and safety standards. And because we believe in real human connection, you won’t get stuck in a voicemail loop. Our full-time office staff is here to answer your call personally, ensuring your home stays comfortable and your questions get answered fast.
Industry-Leading Equipment Built to Last
We only install the brands we trust in our own homes. Quality products mean fewer repairs and better efficiency for you.
Heating & Cooling
KeepRite, Mitsubishi, and Mitsair Furnaces & Air Conditioners
High-efficiency systems designed to handle the Canadian climate.
Hot Water Systems
John Wood, Rinnai Water Heaters
Long-lasting tanks for consistent, worry-free hot water.
Advanced Heat Pumps
The gold standard for energy-efficient, year-round comfort.
Specialized experts in high-performance boilers and in-floor heating.
Indoor Air Quality
Electro-Air, vanEE & General Filters
Professional filtration to help your family breathe easier.
A Team of Specialized Experts
When you call Therwood, you’re getting more than just a technician, you’re getting a specialist with the precise credentials your system requires.
Gas & Oil Experts
Dedicated Licensed Gas Technicians and Licensed Oil Burner Technicians, bringing experience and attention to detail to every job.
Cooling & Refrigeration Pros
Licensed Commercial and Residential Refrigeration Technicians and Registered Apprentices focused on efficient, dependable service.
Administrative Support
Dedicated full-time office staff to ensure a seamless service experience from start to finish.
Gerry
Kevin
Cherie
Tyler
Jake
Matt
Eric
Rob
Associations & Accreditations
TSSA
(Technical Standards
and Safety Authority)
Ensures every gas and oil installation meets rigorous Ontario safety codes.
HRAI
(Heating, Refrigeration and Air Conditioning Institute)
Confirming our commitment to ethical pricing and professional-grade HVAC delivery.
WSIB
(Workplace Safety and Insurance Board)
Full insurance coverage for our team, giving you total peace of mind while we’re on-site.
Skilled
Trades
Ontario
Verification that our technicians have met the highest provincial standards for trade certification.