How Much Does Attic Insulation Cost in Washington?
Washington pricing is above the national average. Updated for 2024.
Attic Insulation Pricing in Washington
In Washington, the average cost for attic insulation is $2,300 per project, which is 15% higher than the national average of $2,000. Most Washington residents pay between $1,150 and $4,025.
Washington has a higher cost of living than most states, which translates to higher labor rates and material costs. Urban areas within Washington may be even higher.
Adding or replacing attic insulation is one of the most cost-effective home energy upgrades. Options include blown-in fiberglass, cellulose, and spray foam.
Washington vs National Average
What Affects Attic Insulation Cost in Washington?
Type
Blown-in fiberglass: $1.00-$1.50/sq ft. Cellulose: $1.00-$1.50/sq ft. Spray foam: $2.50-$5.00/sq ft
Attic Size
1,000 sq ft: $1,000-$2,500. 1,500 sq ft: $1,500-$3,500. 2,000 sq ft: $2,000-$5,000
💡 Tips to Save on Attic Insulation in Washington
- 1.Blown-in insulation is the most affordable option
- 2.Check for utility rebates — many cover 25-50% of insulation costs
- 3.DIY blown-in insulation kits are available at home improvement stores
- 4.Seal air leaks before adding insulation for maximum benefit
Frequently Asked Questions
How much can insulation save on energy bills?
Properly insulated attics can reduce heating and cooling costs by 15-25%.