Credentials & Qualifications
Heating and cooling work is regulated in Ontario. Gas appliances have to be installed and serviced by certified technicians, and the contractor has to be registered with the province’s fuel-safety authority. Below is exactly what we hold — and what each one means for your job.
TSSA Contractor Registration — FS-R-53729
Registered with the Technical Standards & Safety Authority, Ontario’s fuel-safety regulator. This is the registration that legally lets a company perform fuel (gas) work in the province. You can verify the number FS-R-53729 directly with the TSSA.
G2 Gas Technician
Certified to install, service and repair natural-gas and propane appliances rated up to 400,000 BTU/hr — which covers residential furnaces, boilers, water heaters and the gas side of most homes and light-commercial jobs.
G3 Gas Technician
Entry-level gas certification, working under G2 supervision. Having both on a job means routine tasks are covered while the licensed G2 handles anything that requires the full ticket.
Gas Tight Certified
Trained and certified in the pressure- and leak-testing procedures used to confirm a gas system holds tight before it’s put back into service. It’s the safety check that closes out a gas installation.
313D — Residential Air Conditioning Systems Mechanic
Ontario trade certification for residential cooling and refrigerant handling — the ticket required to legally install, charge and service air-conditioning and heat-pump systems that contain refrigerant.
Fully Insured
Commercial liability insurance is in place. If something goes wrong on your property during the work, you’re not carrying that exposure. Certificate available on request.
WSIB Covered
Workplace Safety & Insurance Board coverage is active, so the crew working in your home is covered — that liability doesn’t fall back on you as the homeowner. Clearance certificate available on request.
The credential should match the job
A quick reference for which qualification actually governs the kind of work you’re hiring for:
| If the job is… | The credential that matters |
|---|---|
| Furnace, boiler or gas water heater — install or repair | G2 Gas Technician + TSSA registration |
| Air conditioner or heat pump — install or service | 313D + G2 (for the heat side) |
| Confirming a gas system is safe before start-up | Gas Tight certification |
| Anyone working inside your home | Fully insured + WSIB coverage |
If a quote you’re comparing doesn’t list a TSSA number, it’s worth asking for one. It takes two minutes to verify and it tells you whether the company is actually registered to do gas work.