Skip to main content
BuildX Pro
An unfinished room with printed mineral wool insulation batts fitted between studs on the walls and a window.

Photo: Own work · CC BY-SA 3.0 · Source

How Much Does Soundproof Insulation Cost in Washington, District of Columbia?

Acoustic mineral-wool (e.g. Safe'n'Sound) insulation installed in open wall/ceiling cavities; drywall and decoupling extra.

Soundproof Insulation in Washington, District of Columbia typically costs $1.57 to $3.66 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.

Soundproof Insulation in Washington, District of Columbia

$1.57 – $3.66

per sq ft

Prices in Washington are 5.0% higher than the national average for soundproof insulation.

National average: $1.50 – $3.50 per sq ft

What you get at each price level

  • Basic

    $1.33 – $3.11 per sq ft

    Acoustic mineral wool batts sized for the cavity, friction-fit between framing members

  • Standard

    $1.57 – $3.66 per sq ft

    Acoustic mineral wool batts cut tight around boxes and pipes, gaps at plates sealed with acoustic sealant

  • Premium

    $1.96 – $4.58 per sq ft

    Acoustic mineral wool batts fitted tight, acoustic sealant at plates and penetrations, putty pads on electrical boxes

Cost Breakdown in Washington

ComponentCategoryPrice RangeUnit
Materialsmaterial$0.72 – $1.66sq ft
Laborlabor$0.53 – $1.27sq ft
Supplies & Othersupplies$0.19 – $0.44sq ft
Equipment & Disposalequipment$0.13 – $0.29sq ft
Prices adjusted for Washington local market conditions.

Cost Factors in Washington, District of Columbia

What Affects Pricing

  • Materials ($0.69-$1.58 per square foot)
  • Labor ($0.51-$1.22 per square foot)
  • Supplies & Other ($0.18-$0.42 per square foot)
  • Equipment & Disposal ($0.12-$0.28 per square foot)

Local Price Adjustments

Material costs5.0% above avg
Labor costs4.0% above avg

Frequently Asked Questions

References

Get Free Estimates in Washington

Connect with local soundproof insulation contractors in Washington for personalized quotes based on your specific project.

More Cost Intelligence for Washington