Basement Insulation Cost Calculator
Estimate the cost to insulate your basement walls and rim joists based on size, insulation type, and location.
Last updated: March 25, 2026
Basement Insulation Cost Calculator
Estimate the cost to insulate your basement walls and rim joists based on size, insulation type, and location.
Estimated Total
$2,700
Itemized Breakdown
This calculator provides estimates based on national averages adjusted for your region. Actual costs may vary significantly based on specific project conditions, contractor availability, material prices, and local market factors. Always get at least 3 quotes from licensed, insured contractors before starting your project.
Want the full picture?
Read our complete Basement Insulation cost guide with material comparisons, contractor tips, savings strategies, and regional pricing data.
Quick Cost Reference
Cost by Tier
Fiberglass batt insulation in rim joists and walls of a small 600 sq ft unfinished basement - DIY-friendly approach
Rigid foam board plus batt insulation for walls and rim joists in a 1,000 sq ft basement - solid thermal and moisture performance
Closed-cell spray foam on walls, rim joists, and ceiling of a 1,200 sq ft basement - maximum energy savings and moisture control