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Home records, explained › Who helps with a home › Heating and air conditioning

Heating and air conditioning

Furnaces, heat pumps, air conditioners, ducts. Gas work needs a TSSA-registered contractor, and a residential air conditioning mechanic is a compulsory trade.

For the business side: the playbook for a heating and air conditioning contractor. Page reviewed 30 Oct 2026.

Heating and air conditioning

When people need them

  • The first 90 days
  • Making it yours
  • Living there

Records that matter to the work2

3 registersto check
3 momentsof 9
Listing openfree
  1. Thinking about it
  2. Getting ready to sell
  3. Searching and financing
  4. The offer and its conditions
  5. Closing and moving
  6. The first 90 days
  7. Making it yours
  8. Adding a unit or renting it out
  9. Living there

The records that matter to this work

An OfferDue report reads these for one address, with the source and date of every line.

Licences and registers to check

  • Skilled Trades Ontario: public registerShows whether a person holds a certificate (or is a registered apprentice) in one of Ontario's compulsory trades, with the certificate's expiry date. Plumbing, both electrician trades, residential air conditioning and sheet metal work are compulsory trades.Check the register →
  • TSSA: registered fuels contractor lookupOnly registered fuels contractors may do fuels work in Ontario: gas and propane appliances and piping, and fuel oil tanks and furnaces. The lookup checks a company's registration.Check the register →
  • Ontario: door-to-door sales and home service contractsSince 1 March 2018 a business may not make a contract at your home for a furnace, air conditioner, water heater, water treatment device or duct cleaning unless you contacted it first and invited it over.Check the register →

Questions people ask before hiring

  • What is your licence or certificate number, and can I check it on the register?
  • Does the work need a permit or a notification, and who files it?
  • Is there a written quote with the scope, the price and the schedule?
  • Can you show a WSIB clearance and proof of liability insurance?

Looking for heating and air conditioning?

Tell us what you need in a few lines and we reply by email. Businesses are only starting to be listed, so a request comes to us, not to any business.

Ask for helpOr email us

Heating and air conditioning listed on OfferDue

No businesses are listed here yet. Listing is open.

What a listing looks like
Your business nameHeating and air conditioningRegister checked
  • The towns you serve
  • Languages
  • What you specialise in

Your website

FreeIn the order checkedNever paid for

Each town's home team, with the local rules the work runs into, is on Who helps, town by town.

Listing on OfferDue is free and in the order businesses were checked, never paid for. Where a licence or register exists we check it before a listing shows. Get listed free: what a listing shows and what we check.

For businesses: ask for a free listing

The sign-up box isn't switched on yet. Email [email protected] with your business name, the towns you serve and your website, and we'll reply.

At the same moment

Public-record information, not legal, financial, insurance or inspection advice. A listing on OfferDue is not a recommendation; check licences and references yourself. Who does what in an Ontario offer.