HVAC Costs in Seattle, WA

Verified cost ranges for hvac in Seattle

Verified by 3 sourcesUpdated April 11, 2026

HVAC Costs in Seattle

Cost ranges verified from official sources

Furnace Installation

Seattle, WA

3 sources

Low

$949

Average

$3,562

High

$8,965

Bureau of Labor StatisticsFixrHomewyse

Updated Apr 2026

Heat Pump Installation

Seattle, WA

3 sources

Low

$2,521

Average

$8,799

High

$22,357

Bureau of Labor StatisticsFixrHomewyse

Updated Apr 2026

Ductwork Installation

Seattle, WA

3 sources

Low

$71

Average

$4,802

High

$13,385

Bureau of Labor StatisticsFixrHomewyse

Updated Apr 2026

Furnace Repair

Seattle, WA

2 sources

Low

$73

Average

$1,157

High

$2,971

Bureau of Labor StatisticsFixr

Updated Apr 2026

Thermostat Installation

Seattle, WA

3 sources

Low

$97

Average

$271

High

$542

Bureau of Labor StatisticsFixrHomewyse

Updated Apr 2026

Duct Cleaning

Seattle, WA

2 sources

Low

$56

Average

$2,056

High

$5,557

Bureau of Labor StatisticsFixr

Updated Apr 2026

Boiler Installation

Seattle, WA

3 sources

Low

$2,063

Average

$3,785

High

$8,487

Bureau of Labor StatisticsFixrHomewyse

Updated Apr 2026

Boiler Repair

Seattle, WA

2 sources

Low

$83

Average

$2,494

High

$6,779

Bureau of Labor StatisticsFixr

Updated Apr 2026

HVAC Maintenance Tune-Up

Seattle, WA

2 sources

Low

$56

Average

$2,056

High

$5,557

Bureau of Labor StatisticsFixr

Updated Apr 2026

Heat Pump Repair

Seattle, WA

2 sources

Low

$83

Average

$3,369

High

$9,279

Bureau of Labor StatisticsFixr

Updated Apr 2026

Geothermal Heat Pump Installation

Seattle, WA

2 sources

Low

$56

Average

$27,338

High

$77,791

Bureau of Labor StatisticsFixr

Updated Apr 2026

Attic Insulation Installation

Seattle, WA

2 sources

Low

$333

Average

$6,238

High

$17,225

Bureau of Labor StatisticsFixr

Updated Apr 2026

Radiant Floor Heat Installation

Seattle, WA

2 sources

Low

$489

Average

$489

High

$644

Bureau of Labor StatisticsHomewyse

Updated Apr 2026

Understanding HVAC Costs in Seattle

Furnace installation costs in Seattle vary significantly based on system complexity, home size, and existing infrastructure. The wide range reflects differences in equipment quality, installation difficulty, and local market conditions. Seattle's climate and building codes influence both material selection and labor requirements, contributing to the variation seen across the verified cost range.

How Seattle Compares

vs. National Average+16%

*Based on aggregated cost data from multiple sources

Frequently Asked Questions — HVAC Costs in Seattle

View HVAC Costs in Other Cities in Washington