From initial energy assessment through final air sealing, find the right professional for every aspect of your insulation project:
Spray Foam Insulation
Open-cell and closed-cell spray foam installation for walls, attics, rim joists, crawl spaces, and cantilevered floors. Closed-cell foam at R-6.5 per inch provides the highest R-value per inch of any insulation product while doubling as an air and moisture barrier -- ideal for NB's Maritime climate where air leakage and condensation are primary performance concerns.
Expect $2,500-$12,000 depending on area coverage and foam type. Closed-cell costs more but provides superior moisture resistance for below-grade and high-humidity applications.
Blown-In Cellulose
Eco-friendly cellulose insulation made from 80-85% recycled newspaper, borate-treated for fire and pest resistance. Ideal for attic top-ups to reach R-60 code targets and dense-pack wall cavity filling in existing NB homes without demolition. Particularly well-suited for retrofit projects in older Fredericton, Saint John, and Moncton homes where walls have little or no insulation.
Costs $1,500-$6,000 depending on coverage area and application method. Eligible for NB Power rebates and the federal Greener Homes Grant.
Batt & Roll Insulation
Fibreglass and mineral wool batts in standard widths for 2x4 and 2x6 framing, providing R-12 to R-24 per cavity. Mineral wool offers superior fire resistance and moisture performance for NB's Maritime humidity. The most predictable pricing and fastest installation for new construction and open-wall renovations.
Costs $1,000-$5,000 depending on total square footage, material type, and wall depth. Experienced crews can insulate a full NB home in 1-2 days.
Rigid Foam Board
XPS, EPS, and polyisocyanurate foam boards for continuous exterior sheathing, foundation walls, and under-slab applications. Eliminates thermal bridging through wood studs that reduces effective wall R-value by 15-25%. XPS at R-5 per inch is the standard for NB below-grade applications where moisture resistance is critical.
Costs $2,000-$8,000 depending on board type, thickness, and total coverage area.
Attic Insulation
Comprehensive attic insulation upgrades including removal of damaged existing insulation, air sealing of penetrations around plumbing stacks, electrical boxes, pot lights, and attic hatches, ventilation assessment to prevent ice dams, and installation of blown-in cellulose or fibreglass to R-60 code targets. The single highest-impact energy improvement for most NB homes.
Costs $1,200-$5,500 depending on attic size, existing insulation condition, and target R-value. Typical payback through heating savings is 3-5 years.
Basement & Crawl Space Insulation
Foundation wall insulation, rim joist spray foam sealing, crawl space encapsulation with sealed vapour barriers, and integrated moisture management for NB's high water tables and Maritime humidity. Addresses the 20-30% of total heat loss that occurs through uninsulated below-grade spaces while preventing the mould growth that plagues damp NB basements.
Costs $2,000-$9,000 depending on foundation wall area, crawl space size, and insulation method.
Air Sealing & Vapour Barriers
Professional blower door testing to measure air leakage, comprehensive sealing of gaps around windows, doors, and penetrations, weatherstripping, and 6-mil polyethylene vapour barrier installation on the warm side of walls and ceilings. Typical older NB homes test at 8-15 ACH50 versus the code target of 3.5 ACH50 -- sealing can reduce air leakage by 30-50% and is essential for insulation to perform at rated R-value.
Costs $800-$4,000 depending on home size and scope of work. Pre- and post-sealing testing qualifies for rebate programs.