Basic
$1.04 – $2.36 per sq ft
Unfaced R-21 high-density fiberglass batts friction-fit in 2x6 walls, vapor retarder where code requires

Supply and install R-21 high-density fiberglass batt insulation in 2x6 exterior wall cavities.
R21 Insulation in Anchorage, Alaska typically costs $1.22 to $2.78 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Anchorage are 13.0% higher than the national average for r21 insulation.
National average: $1.10 – $2.50 per sq ft
$1.04 – $2.36 per sq ft
Unfaced R-21 high-density fiberglass batts friction-fit in 2x6 walls, vapor retarder where code requires
$1.22 – $2.78 per sq ft
Kraft-faced R-21 high-density batts stapled to studs, split around wiring and cut tight around boxes and pipes
$1.53 – $3.48 per sq ft
Formaldehyde-free R-21 high-density batts fitted tight without gaps, split around wiring, cut tight at boxes and pipes, window gaps filled
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.54 – $1.20 | sq ft |
| Labor | labor | $0.45 – $1.05 | sq ft |
| Supplies & Other | supplies | $0.14 – $0.32 | sq ft |
| Equipment & Disposal | equipment | $0.10 – $0.21 | sq ft |
Labor costs in Anchorage run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local r21 insulation contractors in Anchorage for personalized quotes based on your specific project.