Call or Text: 705-710-1485

Spray Foam Insulation Services in North Bay

Open-cell and closed-cell spray foam for every application — attics, crawl spaces, basements, garages, and new construction across North Bay and area.

Call or Text: 705-710-1485

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Open-cell spray foam insulation applied to an attic in North Bay Ontario

Open-cell spray foam applied to the underside of an attic roof deck in North Bay

Open-Cell Spray Foam Insulation

Open-cell spray foam is a soft, low-density foam that expands dramatically after application, filling every crack and void in walls, attics, and framing cavities. Its greatest strength is air sealing — it eliminates the infiltration points that cause heat loss far more effectively than batt insulation.

R-Value: ~R-3.7 per inch (a 4-inch application achieves approximately R-15) Density: 0.5 lb/cu ft Vapour: Permeable — separate vapour barrier required per OBC

Best Applications

Attics
Interior Walls
Cathedral Ceilings
Sound Dampening
Rim Joists
Overhangs

For pricing information, see our FAQ page — question 1 covers typical costs in North Bay.

Call or Text: 705-710-1485

Closed-cell spray foam insulation applied to a crawl space wall in North Bay Ontario

Closed-cell spray foam on a crawl space wall — moisture-impermeable and structurally rigid

Closed-Cell Spray Foam Insulation

Closed-cell spray foam is a dense, rigid foam that provides the highest R-value per inch available in insulation products. It is completely impermeable to water vapour — at sufficient thickness it functions as its own vapour retarder, eliminating the need for a separate polyethylene sheet in many applications. This makes it the right choice wherever moisture is a concern.

R-Value: ~R-6.5 per inch (a 2-inch application achieves approximately R-13) Density: 2 lb/cu ft Vapour: Acts as vapour retarder at 2"+ per OBC

Note on thickness: Required thickness to meet Ontario Building Code minimums varies by application. Your contractor will confirm the code-compliant spec before quoting.

Best Applications

Crawl Spaces
Basements
Exterior Walls
Rim Joists
Garages
Metal Buildings

For pricing information, see our FAQ page — question 1 covers typical costs for both foam types in North Bay.

Call or Text: 705-710-1485

Where We Install Spray Foam in North Bay Homes

Attic Insulation

Attics are the single greatest source of heat loss in most North Bay homes. Spray foam applied to the attic floor or underside of roof deck creates an airtight barrier that significantly outperforms blown-in or batt alternatives, especially in homes with complex framing or penetrations.

Crawl Space

Uninsulated crawl spaces allow cold, moist air to enter from below — causing cold floors, pipe freeze risk, and mould growth. Closed-cell spray foam on crawl space walls and rim joists eliminates all three problems simultaneously.

Basement Rim Joists

The rim joist area — where the floor framing meets the foundation — is notoriously difficult to insulate with batts and is a major air leakage point in older North Bay homes. Spray foam fills every gap completely and adheres permanently.

Garage Insulation

Whether it's an attached garage or a detached workshop, spray foam keeps the space usable in Northern Ontario winters. Open-cell foam on garage ceilings and walls dramatically reduces heat loss to the home above and makes the garage itself far more comfortable.

New Construction

Building new in North Bay? Specifying spray foam during construction is the most cost-effective time to install it. Our contractor network works with builders and architects to ensure the thermal envelope meets or exceeds Ontario Building Code requirements from day one.

Existing Homes & Retrofits

Spray foam can be installed in existing homes with minimal disruption. Many North Bay homeowners tackle insulation upgrades one area at a time — starting with the attic or crawl space for the fastest return, then moving to walls and rim joists.

Why Spray Foam Makes Sense in Northern Ontario

North Bay sits in Hardiness Zone 5b, with design temperatures reaching -31°C and frost depths exceeding 1.5 metres. This is not a climate where "good enough" insulation is actually good enough.

Extreme Cold Performance

Batt insulation loses a significant portion of its rated R-value when air moves through it — convective looping. Spray foam's closed-cell structure and adhesion to framing eliminates air movement entirely, so it performs at its rated value even at -30°C.

Air Sealing Advantage

Air leakage accounts for 25–40% of heating energy loss in Canadian homes. Spray foam addresses air sealing and insulation in a single application — no separate air barrier required — making it uniquely efficient for Northern Ontario retrofits.

Foundation & Frost Protection

North Bay's deep frost depth means foundation walls and crawl space floors are subject to significant thermal stress. Closed-cell foam on foundation walls reduces thermal bridging and protects against freeze-thaw cycling that causes cracking over time.

Vapour Management

Ontario Building Code requires careful management of vapour in cold climates. Closed-cell foam at code-compliant thickness handles vapour control automatically. Open-cell foam requires a separate vapour barrier, which is included in the scope of work.

Have Questions About Spray Foam?

We've answered the most common questions about cost, process, and performance on our FAQ page.

Read the FAQ
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