Basement Insulation

A cold basement chills the entire house. Properly insulated basements warm upper floors, eliminate damp walls, and reclaim square footage as livable space.

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Basement Insulation in Ontario

An uninsulated basement is one of the largest heat sinks in any Ontario home. Concrete is a giant cold sponge — and without proper insulation, it pulls warmth straight out of your living space, year-round.

Pricing
Free quote
Best For
Unfinished basements, basement reno prep, rim joists, cold floors
10+ yrs
3,500+ Ontario
installations

What you get with Bestway basement insulation

FAQ

Common questions about basement insulation

Should I insulate before finishing my basement?

Always. Insulating after drywall is up costs significantly more. The ideal sequence is: framing → spray foam against concrete → vapor barrier → drywall.

Will spray foam stop my basement from being damp?

Closed-cell spray foam acts as its own vapor barrier and dramatically reduces wall condensation.

How thick should basement insulation be?

Ontario code requires R-12 minimum. We typically install 2-3 inches of closed-cell foam (R-13 to R-19.5).

Can you insulate a finished basement?

Yes — we can blow insulation through small drilled holes (drill-and-fill), or remove sections of drywall for full access.

Service area

Available across Ontario

From Toronto and the GTA to Muskoka, Sudbury, and beyond.

How it works

How Basement Insulation Works

Cold floors, drafts and condensation usually trace back to an uninsulated rim joist and bare foundation walls. Bestway uses closed-cell spray foam (about R-6 per inch) which insulates and creates a built-in vapour barrier in one step — far better against concrete than batt, which can trap moisture and grow mold.

The result is a warmer main floor, a drier basement, and a space that is ready to finish.

Best suited for

The process

What to Expect, Start to Finish

Free quote

Share your space and goals — you get a clear ballpark for your basement project and we book an on-site visit.

On-site assessment

We inspect, measure and confirm the right product, a firm price, and your rebate eligibility.

Professional install

Our WSIB-insured crew completes the work cleanly and protects your home throughout.

Rebate & warranty

We explain your rebate eligibility and register your written 10-year workmanship warranty.

Why Bestway

Insulation Done Right, Backed for 10 Years

Insured & bonded

WSIB coverage and $5M general liability on every job — full protection for your home.

10-year warranty

A written, transferable workmanship warranty on every Bestway install.

24-hour quotes

Detailed quotes back within a day, and most jobs scheduled within a week.

Ready to upgrade your insulation?

Free quote in 24 hours. No obligation. Up to $1,250 in Ontario rebates.