How Much Does Attic Insulation Cost in Seattle, WA?

Seattle pricing is 30% above the national average. Updated for 2026.

Based on local labor rates, oceanic climate conditions, and Seattle's tech-aerospace-trade economy.See our methodology

Low End
$1,300
Average
$2,600
High End
$4,550
per project
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Attic Insulation Pricing in Seattle, WA

Seattle is a high-cost market where attic insulation runs about 30% above the national average. The city's tech-aerospace-trade economy supports higher wages, which translates to elevated contractor rates. With a population of 735K, competition among providers exists but demand keeps prices firm.

Local climate plays a direct role in attic insulation costs here. Persistent rain creates moisture management challenges for roofing, siding, and foundations; mild temperatures reduce HVAC extremes.

Market-specific factors matter in Seattle: tech economy drives premium pricing; green building requirements may add cost; high minimum wage affects labor rates.

Seattle has strict permitting requirements. Budget an additional 5-15% for permits, inspections, and code compliance when planning your attic insulation project. Licensed contractors familiar with local codes can navigate this process efficiently.

Seattle vs National Average

Seattle Average
$2,600
National Average
$2,000
Difference
+30%
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What Affects Attic Insulation Cost in Seattle?

Type

Blown-in fiberglass: $1.00-$1.50/sq ft. Cellulose: $1.00-$1.50/sq ft. Spray foam: $2.50-$5.00/sq ft

Attic Size

1,000 sq ft: $1,000-$2,500. 1,500 sq ft: $1,500-$3,500. 2,000 sq ft: $2,000-$5,000

Seattle Market Conditions

tech economy drives premium pricing; green building requirements may add cost; high minimum wage affects labor rates

Local Climate Impact

persistent rain creates moisture management challenges for roofing, siding, and foundations; mild temperatures reduce HVAC extremes

๐Ÿ“ Attic Insulation in Seattle Cost Calculator

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Top-Rated Attic Insulation Pros in Seattle, WA

7 providers

Premier Contractors

๐Ÿ† SPONSORED
โ˜…โ˜…โ˜…โ˜…โ˜…3.9(44 reviews)
๐Ÿ“ 988 Commerce Dr, Seattle, WA๐Ÿ—๏ธ Since 2002
โœ“ LicensedBBB: A+โšก Usually responds in 1 hours

Serving Seattle and surrounding areas since 2002. Licensed, insured, and committed to quality workmanship at fair prices.

Elite Home Services

โ˜…โ˜…โ˜…โ˜…โ˜…4.8(26 reviews)
๐Ÿ“ 427 Center St, Seattle, WA๐Ÿ—๏ธ Since 2019
โœ“ Licensedโœ“ InsuredBBB: A+

First Choice Restoration

โ˜…โ˜…โ˜…โ˜…โ˜…4.4(71 reviews)
๐Ÿ“ 229 Pine Rd, Seattle, WA๐Ÿ—๏ธ Since 2002
โœ“ Licensedโœ“ InsuredBBB: A

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Tips to Save on Attic Insulation in Seattle

  • 1.Blown-in insulation is the most affordable option
  • 2.Check for utility rebates โ€” many cover 25-50% of insulation costs
  • 3.DIY blown-in insulation kits are available at home improvement stores
  • 4.Seal air leaks before adding insulation for maximum benefit
  • 5.In Seattle, verify your contractor handles local permits โ€” the permitting process here is more involved than average and DIY permit applications can cause delays.
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๐Ÿ“ˆ Attic Insulation in Seattle Cost Trends (2020โ€“2024)

Prices have increased +17.8% over the last 5 years

$2,207
2020
$2,300
2021
$2,450
2022
$2,519
2023
$2,600
2024
YearNational AvgYoY Change
2020$2,207โ€”
2021$2,300+4.2%
2022$2,450+6.5%
2023$2,519+2.8%
2024$2,600+3.2%

Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.

๐Ÿ’ฌ What Did You Pay?

Real costs reported by homeowners for Attic Insulation in Seattle

$2,718
Avg Reported
$1,903
Lowest Reported
$3,941
Highest Reported

Recent Reports

$2,221
Dallas, TX ยท Jan 2024
โ˜…โ˜…โ˜…โ˜…โ˜†
$3,018
Chicago, IL ยท Feb 2024
โ˜…โ˜…โ˜…โ˜…โ˜†
$2,600
Phoenix, AZ ยท Mar 2024
โ˜…โ˜…โ˜…โ˜…โ˜†
$2,833
Denver, CO ยท Apr 2024
โ˜…โ˜…โ˜…โ˜†โ˜†
$2,553
Atlanta, GA ยท May 2024
โ˜…โ˜…โ˜…โ˜…โ˜…
$3,411
Seattle, WA ยท Jun 2024
โ˜…โ˜…โ˜…โ˜†โ˜†

Frequently Asked Questions

How much can insulation save on energy bills?

Properly insulated attics can reduce heating and cooling costs by 15-25%.

Why does attic insulation cost different in Seattle than other cities?

Seattle's costs reflect local labor rates driven by the tech-aerospace-trade economy, oceanic climate conditions that affect materials and scheduling, and strict permitting requirements. The expensive labor market also influences competitive pricing.

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