Basic
$487 – $1,460 each
28-gauge galvanized sheet metal plenum sized to the return opening, screwed to the unit, joints sealed with foil tape
How Much Does Return Air Plenum Cost in Seattle, Washington?
Supply and install one return-air plenum box (sheet metal, sealed to the furnace/air handler); return-duct changes, filter racks and access repairs extra.
Return Air Plenum in Seattle, Washington typically costs $573 to $1,718 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Return Air Plenum in Seattle, Washington
$573 – $1,718
eachPrices in Seattle are 19.0% higher than the national average for return air plenum.
National average: $500 – $1,500 each
What you get at each price level
Standard
$573 – $1,718 each
26-gauge galvanized plenum, seams and unit connection sealed with duct mastic, fastened and supported
Premium
$716 – $2,147 each
24-gauge galvanized plenum with acoustic liner, mastic-sealed seams, flexible canvas connector to cut vibration
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $234 – $702 | each |
| Labor | labor | $235 – $704 | each |
| Supplies & Other | supplies | $62 – $187 | each |
| Equipment & Disposal | equipment | $42 – $125 | each |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($225.00-$675.00 per unit)
- Labor ($175.00-$525.00 per unit)
- Supplies & Other ($60.00-$180.00 per unit)
- Equipment & Disposal ($40.00-$120.00 per unit)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
How we price this
BuildX Pro researches and reviews the national price range for Return Air Plenum, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Nov 2026.
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
Connect with local return air plenum contractors in Seattle for personalized quotes based on your specific project.