Basic
$73 – $243 each
R-8 vinyl-faced fiberglass blanket fitted and taped, cut clear of controls, T&P valve and burner access
Supply and fit one pre-cut fiberglass/foil insulation blanket on a tank water heater, clearing controls and vents, by a plumber or handyman.
Insulate Water Heater in Seattle, Washington typically costs $86 to $286 each 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 insulate water heater.
National average: $75 – $250 each
$73 – $243 each
R-8 vinyl-faced fiberglass blanket fitted and taped, cut clear of controls, T&P valve and burner access
$86 – $286 each
R-10 vinyl-faced fiberglass blanket, seams taped, neat cutouts for controls, labels and T&P valve
$107 – $358 each
R-11 foil-faced blanket with all seams taped, cutouts for controls and labels, vent and burner clearances kept
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $35 – $116 | each |
| Labor | labor | $35 – $118 | each |
| Supplies & Other | supplies | $9.36 – $31 | each |
| Equipment & Disposal | equipment | $6.24 – $21 | each |
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local insulate water heater contractors in Seattle for personalized quotes based on your specific project.