North York — Clanton Park
A nearly-bare attic with black mold overhead — a mid-winter full rebuild
Read the full case study →
North York · Free Attic Inspection
Attic Insulation in North York — Post-War Homes Brought to R-60
Willowdale, Clanton Park, Downsview — we’ve rebuilt North York attics from nearly bare joists to sealed R-60, in the middle of winter. Here’s the proof.
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Local knowledge
Two kinds of North York attics — both underperforming
North York is a mix: original post-war bungalows and storey-and-a-halfs from the 1950s, and newer infill rebuilds beside them. The older homes are the urgent ones — on a recent Clanton Park project the attic was nearly bare, with black mold on the sheathing overhead, and the family was heating the sky through it in January. We removed what was left, remediated the mold, and rebuilt to R-60 mid-winter.
In Willowdale we documented the other common case: thin, patchy insulation with open penetrations everywhere — pot lights, a plumbing stack, wiring runs — each one leaking warm, humid house air into the cold attic. Air sealing those before insulating is the difference between an attic that performs and one that just looks deep.
Even the newer infill homes here are usually insulated to the minimum code of their build year, not to today’s R-60. The free inspection takes twenty minutes and tells you exactly where your house stands, with photos.
Proof, not promises
Documented North York projects
North York — Willowdale
Thin, patchy insulation and open penetrations — sealed, treated, and blown to R-60
Read the full case study →
Toronto — Lawrence Park
A musty smell upstairs turned out to be mold across the roof sheathing
Read the full case study →
What we do
Insulation services in North York
Attic Insulation, Top-Ups & Removal
Blown-in fiberglass to R-60, full removals and rebuilds, insulated hatches — quoted flat after a photographed inspection.
Air Sealing
Pot lights, plumbing stacks, duct boots and top plates sealed before any insulation goes in — the step that makes R-60 actually perform.
Mold Remediation (3-Stage)
Botanical cleaning and spore removal, wood restoration, and a protective sealant against regrowth — see a full remediation in our case studies.
Basement & Garage Insulation
Cold floors over the garage and chilly basements get the same treatment: seal first, then insulate properly.
Most North York attic upgrades qualify for up to $1,250 back
Insulating your attic to R-50 or better qualifies for a rebate through Ontario’s home energy rebate program — no energy assessment required for attic-only projects. We confirm your exact amount at the free inspection and file all the paperwork for you.
Up to $1,250Attic currently R-12 or less
Up to $1,000Attic currently R-12 to R-25
Up to $800Attic currently R-25 to R-35
Rebates are offered through an Ontario home energy-efficiency rebate program. Confirmed Attics & Insulation is an independent participating contractor. Rebate amounts shown are maximums; terms and conditions apply, confirmed at your free assessment.
Questions
North York homeowners ask us
Can attic work be done in winter?
Yes — and winter is when the problem hurts most. Our Clanton Park rebuild (removal, mold remediation, spray-foam air seal, blown to R-60) was completed in the middle of winter. Blown insulation installs fine in the cold; the crew just manages the attic access carefully.
My North York bungalow has pot lights everywhere. Does that matter?
A lot. Older recessed lights and the holes cut for them are among the biggest air leaks in a ceiling — each one pushes warm, moist house air into the attic, which is how sheathing ends up moldy. We air-seal penetrations (with the right clearances and covers) before any insulation goes in.
The house was renovated — is the attic already up to standard?
Often not. Renovations frequently skip the attic, or top it up only to the code minimum of the permit year. Today’s standard is R-60 (about 21.5 inches). The free inspection measures what you actually have; if it’s already right, we’ll say so.
What does a full attic rebuild involve?
Removal of the old material, remediation of any mold (clean, restore, seal), fixing the moisture source, air-sealing the ceiling — on many jobs with closed-cell spray foam across the attic floor, which doubles as the vapour barrier older homes never had — then baffles for airflow and fresh insulation to R-60. You get photos at every stage.
How much rebate can a North York home get?
Attics at R-12 or less — typical for original post-war insulation — qualify for up to $1,250 through Ontario’s home energy rebate program when upgraded to R-50+. Attics with a bit more get up to $1,000 or $800 depending on the starting point. We confirm the number at the free inspection and file everything.
Find out what’s really in your attic
A free, no-obligation inspection with photos of everything we find — and a straight answer, even if that answer is “your attic is fine.”
About Confirmed
Confirmed Attics & Insulation specializes in insulation and energy-efficiency solutions for homes across Ontario. We help homeowners improve comfort, reduce heat loss, and lower energy costs through expert attic insulation, air sealing, and efficiency upgrades.
Contact Info
- (647) 507-4072
- info@confirmedc.com
- 2600 John Street Unit #208, Markham, ON
- Mon–Sat: 9:00 AM – 5:00 PM