Basic
$973 – $2,920 per project
R-8 foil-faced fiberglass wrap on all accessible supply and return runs, seams overlapped and foil-taped, tied with twine

Wrap/insulate accessible supply and return ducts in an attic, crawlspace or basement of a typical home (fiberglass wrap or duct board, seams taped), materials and labor; duct replacement and sealing extra.
Duct Insulation in Seattle, Washington typically costs $1,145 to $3,435 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Seattle are 19.0% higher than the national average for duct insulation.
National average: $1,000 – $3,000 per project
$973 – $2,920 per project
R-8 foil-faced fiberglass wrap on all accessible supply and return runs, seams overlapped and foil-taped, tied with twine
$1,145 – $3,435 per project
R-8 foil-faced fiberglass wrap on all accessible runs and fittings, seams foil-taped, held with metal bands
$1,431 – $4,294 per project
R-8 wrap with reinforced foil facing on all accessible runs and fittings, every seam taped, banded so it keeps full thickness
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $468 – $1,404 | job |
| Labor | labor | $469 – $1,407 | job |
| Supplies & Other | supplies | $125 – $374 | job |
| Equipment & Disposal | equipment | $83 – $250 | job |
Foil-faced insulated duct elbow running along a wall
Photo: Achim Hering · CC BY-SA 3.0 · Source
Find a pro to do thisVertical HVAC duct wrapped in silver foil-faced insulation
Photo: Achim Hering · CC BY 3.0 · Source
Find a pro to do thisLabor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local duct insulation contractors in Seattle for personalized quotes based on your specific project.