Attic Insulation Cost Calculator
Get an accurate estimate for your insulation project. Our calculator takes into account the area, insulation type, and any issues that need to be fixed.
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Issues to Fix
Frequently Asked Questions
What is the average cost to insulate an attic in Quebec in 2025?
The cost varies between $0.90 and $3.50 per square foot, depending on the material chosen. Fiberglass costs between $0.90 and $1.50/sq.ft, cellulose between $1.20 and $1.80/sq.ft, and polyurethane foam between $2.50 and $3.50/sq.ft. A standard project for a 1,000 sq.ft attic costs between $2,400 and $3,500, including labor and materials.
What are the signs of poor attic insulation?
The main signs are: abnormally high energy bills, uneven temperatures between rooms, presence of drafts or condensation, and ice buildup on the roof in winter.
What is the recommended R-value for an attic in Quebec?
The minimum standard is R-41, but the Novoclimat program recommends R-51 for optimal performance. Some contractors even offer R-50+ solutions to maximize energy efficiency.
What grants are available for attic insulation?
Several programs are available: Rénoclimat (up to $1,000), LogisVert (grants based on anticipated energy savings), and specific municipal programs depending on your city.
How does attic insulation reduce energy costs?
Effective insulation reduces heat loss by 15 to 30%, generating annual savings of $300 to $900 on heating and cooling bills.