1 (800) 983-2456Up to $1,250 back on attic insulation — no energy audit needed
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Insulation in Markham

Heritage stock in Unionville, and a lot of complicated 1990s roofs everywhere else.

Four inches of attic insulation beside sixteen inches, drawn to the same scale As we usually find it R–12 About 4 inches, settled Ontario code in the 1970s What the rebate pays for R–50 About 16 inches, blown Current Ontario standard 16″ 8″ 4″ 0 Drawn to one scale. Depth is measured at the joist, away from the hatch and the eaves.

The tier is set by the depth we measure, not by the postcode

What we find in Markham attics

Old Markham Village and Unionville hold century and near-century houses, many with knob-and-tube history, cathedral sections and no walkable attic floor — those are surveyed individually rather than quoted from a photograph. The Milliken, Armadale and Cornell subdivisions have complex roofs with multiple small voids where the original blow reached the middle and not the edges. Cellulose suits both: denser than fibreglass, so it resists air movement within the layer in an attic that has more perimeter than floor.

Getting a crew to you

Markham is a short run east from the yard and we are there most weeks.

Typical lead time: Usually within the week. Nothing about the rebate changes with distance — the programme is province-wide — but the diary does, and autumn fills before anything else.

What the attic stream pays

No energy assessment, one measure, and the tier set by the depth we measure before we start.

What is up there nowUpgraded toMaximum rebate
R–12 or less — under about 4 inchesR–50$1,250
R–12 to R–25 — about 4 to 8 inchesR–50$1,000
R–25 to R–35 — about 8 to 11 inchesR–50$800

Amounts are set by Enbridge Gas and Save on Energy and are quoted from the programme pages — attic stream, assessment stream — checked September 2026.

What we will tell you about your house

  • The measured depth, taken at the joist rather than at the hatch.
  • Which tier that puts you in, and the dollar figure with the fifty per cent cap applied.
  • Whether the soffits are blocked, because deep insulation over blocked soffits causes frost.
  • Whether the bath fans vent outside or into the attic.
  • If you are already over R–35, that the attic stream will not pay — and what is still worth doing instead.

You get the depth, the tier, the figure and the photographs whether or not you use us.

Related

Where to go next

Book an attic check

Someone goes up, measures, and photographs it.

You get the depth, the tier, the dollar figure and the photographs, whether or not you go ahead with us.