How-to · 5 minutes · easy
Anyone working on natural gas in Ontario must be TSSA-licensed. Hiring an unlicensed contractor for gas work is illegal, and your home insurance can deny related claims. Here's how to verify in 5 minutes.
What you'll need
It should appear on quotes, invoices, business cards, and websites. The format is F/S-XXXX-XXXX. (Ours: F/S-7864-0125)
Some contractors are licensed at the company level but send unlicensed installers. The actual person doing gas work should be G2-licensed minimum.
Go to tssa.org and use their public registry to look up the F/S number. Confirms the license is active and in good standing.
If the install includes new circuits, ask for the ECRA/ESA license. Same logic — Ontario requires it; without it, your insurance may not cover related issues.
Most municipal jurisdictions require permits on furnace and AC installs. The contractor should pull and include the permit fee in the quote. No permit = the install isn't on record = trouble at resale.
When to stop and call
If a contractor balks at any of these or can't produce credentials, walk away. We're TSSA F/S-7864-0125, ECRA-licensed, and pull permits on every install. (416) 258-2460.
Open 24/7
Most GTA calls get same-day service. Call, text, or request a fixed quote — we'll come back with a real ETA.
Mississauga, ON · Greater Toronto Area and up to 2 hours out — London, Kitchener, Barrie, Kingston, Niagara.
(416) 258-2460 · 24/7