How much does blown-in cellulose insulation cost in Moncton NB? | Insulation IQ?

Blown-in cellulose is one of the most cost-effective ways to increase attic insulation in the Greater Moncton area, and prices have remained relatively stable in the region over the past few years. For a typical Moncton home with an unobstructed attic, you can expect to pay $1,500–$3,500 for a blown cellulose upgrade, though the final number depends heavily on the existing R-value, the square footage, and the accessibility of the space.

To put that in more concrete terms: a 1,000 square foot attic floor currently sitting at R-12 (about 4 inches of older fibreglass batts) brought up to the NB Building Code minimum of R-50 for attics in Climate Zone 6 will require roughly 16–18 inches of cellulose. At a material density of approximately 1.5 lbs per square foot for settled cellulose at that depth, the material cost alone runs $600–$950. Labour in the Moncton market — including blower setup, temporary baffles at eave vents to maintain airflow, and post-job cleanup — typically adds $600–$1,200. Most Moncton contractors also include a thermal scan or inspection of existing air leakage before blowing, and comprehensive air sealing of penetrations (pot light boxes, plumbing stacks, top plates) prior to blowing adds $300–$700 to the total but is strongly recommended for maximum energy savings.

Starting from a fully uninsulated attic is more expensive because you need greater total depth. Achieving R-60 — which is what many energy auditors recommend for new construction in Moncton given our heating degree days — requires approximately 20–22 inches of settled cellulose. In that scenario, the total installed cost for a 1,200 sq ft attic ranges from $2,800 to $4,500 depending on contractor and complexity.

A few variables specific to Moncton and the surrounding Westmorland County area can push costs higher. Cathedral ceilings or finished attics with limited access require smaller bags and more labour time, potentially adding 30–50% to the blown-in cost. Homes in the older Moncton neighbourhoods around Victoria Street or the Shediac Road corridor often have knee-wall attic configurations and blocked eave channels that require more prep work. If mould is discovered on existing sheathing — not uncommon in older Moncton homes where bathroom exhaust fans were historically vented into the attic — remediation must occur before insulation work, adding $500–$2,000 depending on extent.

NB Power's Home Energy Efficiency Upgrade programme currently offers rebates for attic insulation upgrades. As of recent programme years, attic insulation rebates have ranged from $0.10 to $0.15 per RSI added, which for a significant upgrade can translate to $400–$900 back in your pocket. The programme requires a pre-retrofit NB Power home energy assessment (approximately $150–$200 if not subsidised), so factor that into your overall cost-benefit analysis. The Canada Greener Homes Grant (check current federal funding status) offered up to $5,600 for insulation measures including attic cellulose when combined with a registered EnerGuide assessment.

Cellulose is produced from recycled newsprint and treated with borates for fire and pest resistance. Its settled R-value is approximately R-3.5 per inch, meaning a 15-inch depth gives you roughly R-52. Unlike fibreglass batts, cellulose fills irregularly shaped joist bays completely and provides marginally better resistance to air movement within the insulation layer — a meaningful advantage in Moncton's cold winters where wind-washing through fibreglass can degrade effective performance.

When comparing quotes, make sure each contractor specifies the installed depth and the settled R-value they are guaranteeing, not just the initial blown depth. Cellulose settles 15–20% after installation, and the quote should account for this with an overshoot. Also confirm that the contractor will properly dam the attic hatch and seal bypasses at the top of partition walls — these two items alone account for a disproportionate share of heat loss in Moncton homes.

For current pricing from insulation contractors serving the Greater Moncton area — including Dieppe, Riverview, and Shediac — New Brunswick Insulation and the New Brunswick Construction Network are good resources for connecting with experienced professionals.

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Looking for experienced contractors? The New Brunswick Construction Network connects homeowners with qualified professionals:

• Brunswick insulation & roofing
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• Arctic Fox Construction Inc.
• 3Tone Construction Ltd
• Gionetterenovations