Attic insulation in Langley BC costs $1.50 to $3.00 per square foot installed for blown-in fibreglass with air sealing included. For a typical Langley home with a 1,000 to 1,500 square foot attic floor, total project cost runs $1,500 to $4,500 before BC Hydro and FortisBC rebates of up to $1,200 on qualifying upgrades. After rebates, the net cost of most Langley attic projects falls significantly — and the payback period through energy savings is typically three to five years. Written quote at westerninsulation.ca/attic-insulation/ — no obligation.