Free Attic Inspection • Same-Day Quote(647) 575-1474
THE GREATINSULATION INC.
Serving the GTA since 2016Experienced, trained crewsFree on-site assessmentResults documented in writingInspections guided by the Ontario Building CodeEvery job documented
Spray Foam Insulation · Scarborough

Spray Foam Insulation in Scarborough, Ontario

Closed-cell and open-cell polyurethane foam that air-seals and insulates in a single application — the highest R-value per inch available for GTA homes and commercial buildings.

The local picture

Back-splits and side-splits across Scarborough have knee walls and short roof sections that are almost impossible to insulate properly with batts. Foam follows those shapes, which is why it is usually the right call on this housing type.

Large volumes of 1950s–70s bungalows, side-splits and back-splits

Service details

R-6 per inch (closed-cell)
R-value
1–2 days
Typical install
Attics, rim joists, crawl spaces, cathedral ceilings
Best for

How the job runs

01

Air-leak assessment

We locate where conditioned air is escaping before proposing anything.

02

Surface preparation

Old material removed if needed, cavities cleaned, sensitive areas masked.

03

Foam application

Applied in controlled lifts to the specified thickness, with curing time respected.

04

Trim, inspect, document

Excess trimmed, coverage verified, and the finished depth recorded for your file.

What we see in these homes

  • Attics still carrying their original insulation depth from the 1960s
  • Unsealed top plates and pot lights leaking warm air upward
  • Cold basements with uninsulated block foundation walls
  • Bonus rooms and additions built over unheated space

Typical ranges

Open-cell and closed-cell foam are priced differently and suit different assemblies. Here are the market ranges, what drives them, and why the right answer depends on the space rather than the price list.

Spray Foam Insulation Cost in Toronto & the GTA

Questions about this service

Is spray foam safe once cured?

Once fully cured and ventilated, the foam is inert. We follow the manufacturer's re-occupancy times and tell you exactly how long to stay out of the treated area.

Closed-cell or open-cell — which do I need?

It depends on the assembly, the space available and your budget. We recommend one over the other after seeing the site, not before.

Can it be applied over existing insulation?

Usually not. Foam needs to bond to a clean substrate, so old batts or blown-in material generally come out first.

Insulate smarter. Save energy. Live better.

Book your free in-home assessment today. No pressure, no obligation — just a clear plan and an honest quote.

Questions?