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How Much Does Attic Insulation Cost in Canada?

Attic insulation in Canada costs $1,500–$4,000 for a typical home, with blown-in cellulose or fibreglass being the most common options.

National Average
$2,500
Typical Range
$1,500 – $4,000

Cost by City

CityLowAverageHigh
Toronto, ON$1,800$2,800$4,500
Calgary, AB$1,500$2,500$3,800
Vancouver, BC$1,600$2,600$4,000
Winnipeg, MB$1,400$2,400$3,500

Prices are estimates in CAD based on typical residential jobs. Actual costs vary by scope and conditions.

What Affects the Cost?

Material type
Blown-in cellulose: $1.50–$2.50/sq ft. Blown-in fibreglass: $1.75–$3.00/sq ft. Spray foam: $3.50–$6.00/sq ft.
Current insulation
Topping up existing insulation is cheaper than starting fresh. Removing old insulation (vermiculite, damaged) adds $1,000–$3,000.
Target R-value
Canadian building code recommends R-50 to R-60 for attics. Upgrading from R-20 to R-60 requires significant material.
Attic access and layout
Open attics are quick. Tight spaces, many obstructions, or cathedral ceilings add labour cost.

✓ Typically Included

✓Insulation material and installation
✓Air sealing of major penetrations
✓Vapour barrier (if needed)
✓Cleanup

✕ Usually Not Included

✕Vermiculite or asbestos removal
✕Attic ventilation upgrades
✕Electrical or lighting relocation
✕Mould remediation
✕Comprehensive air sealing
🍁

Canadian Considerations

Attic insulation is one of the highest-ROI energy upgrades for Canadian homes — most homes built before 2000 are under-insulated by current standards. The federal Greener Homes Grant covers up to $5,000 for insulation upgrades. An EnerGuide home evaluation ($300–$600, often rebated) is required to qualify and will identify exactly where insulation is needed.

When to Hire a Pro

Blown-in insulation requires specialized equipment. While batt insulation can be DIY, blown-in (which is superior for attics) should be professionally installed for even coverage. The job typically takes half a day.

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Quick Price Summary

Low end$1,500
Average$2,500
High end$4,000

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