How much do contractors charge for crawlspace insulation in New Brunswick?

Crawlspace insulation in New Brunswick typically costs $8-15 per square foot installed, with most homeowners paying $2,500-6,500 for a standard crawlspace. The wide range reflects different insulation methods, access challenges, and whether moisture issues need addressing first.

Pricing breakdown for New Brunswick:

• Basic batt insulation: $8-12/sq ft (R-20 to R-24 fibreglass between joists)


• Spray foam insulation: $12-18/sq ft (closed-cell foam on walls and rim joists)


• Encapsulation with vapour barrier: Add $3-5/sq ft for 6-mil poly sheeting and sealing

The most common approach in New Brunswick involves insulating the crawlspace walls rather than the floor above, which creates a conditioned space and prevents frozen pipes during our harsh winters. This method requires insulating the rim joists, foundation walls, and installing a vapour barrier on the ground.

Factors affecting your final cost include crawlspace height (anything under 4 feet adds labour costs), access points, existing moisture problems, and whether electrical or plumbing work needs relocating. Many older New Brunswick homes, especially those 1970s split-levels common in Riverview and Quispamsis, have minimal crawlspace height that makes the work more challenging.

Before insulating, address any moisture issues first. New Brunswick's clay soils and high water tables mean crawlspace humidity is a persistent problem. Expect to pay an additional $1,500-3,500 for proper drainage, sump pump installation, or foundation repairs if needed. Radon testing is also recommended since New Brunswick has some of Canada's highest radon levels — approximately 1 in 4 homes exceed Health Canada guidelines.

Professional installation is strongly recommended for crawlspace work. The confined space presents safety risks, and proper air sealing is critical to prevent moisture problems and maintain energy efficiency. Most contractors will also handle any required building permits — check with your municipality or Regional Service Commission since permit requirements vary across the province.

Contact contractors in our New Brunswick directory who specialize in insulation and energy efficiency work. Many also offer NB Power rebate assistance, which can offset some of your costs for qualifying efficiency upgrades.