Home records, explained › Who helps with a home › Insulation and air sealing
Insulation and air sealing
Attic, wall and basement insulation. An EnerGuide evaluation before and after is what many energy grants ask for.
Page reviewed 30 Oct 2026.
When people need them
- Making it yours
Records that matter to the work1
- Thinking about it
- Getting ready to sell
- Searching and financing
- The offer and its conditions
- Closing and moving
- The first 90 days
- Making it yours
- Adding a unit or renting it out
- 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
- WSIB: clearance certificate searchShows whether a business is registered with the WSIB and in good standing. The WSIB says a homeowner hiring a contractor for repairs or renovations isn't required to hold a clearance; many ask for one anyway.Check the register →
- Natural Resources Canada: find a service organizationLists the organizations whose registered energy advisors do EnerGuide home evaluations, by the first three characters of the postal code.Check the register →
Questions people ask before hiring
- Does the work need a building permit, and who applies for it?
- Is there a written quote with the scope, the price, the schedule and what is left out?
- Can you show a WSIB clearance and proof of liability insurance?
- Who does the work on site: your own crew or subcontractors?
Looking for insulation and air sealing?
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.
Insulation and air sealing listed on OfferDue
No businesses are listed here yet. Listing is open.
- 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.