What HVAC replacement costs in Seattle
Construction pricing in Washington runs 10% above the national average, so HVAC replacement here typically lands between $10,450 and $18,150 installed, before rebates.
Figures are modeled from 2026 national baselines adjusted by a Washington cost factor of 1.10. They are estimates for comparison, not quotes — your property, access and material choices move the real number.
HVAC Contractors serving Seattle
Ranked by Google review volume. Listings are sourced from public business data; those marked Verified member have claimed and confirmed their listing with us.
- Johnson Barrow
- Gensco
- Filco Company, INC.
- Dorse and Company
- Brennan Heating and Air Conditioning
- MM Comfort Systems
- HVAC Angel Seattle Heating & Air Conditioning
- King County Sewer Drain & Plumbing
- The Fireplace & Chimney Service
- Energy Technologies
- Aaire Particle Control - Commercial and Industrial Air Filters
- Evergreen Home Heating and Energy
- ACCO Engineered Systems
- TemperaturePro
- MacDonald-Miller Facility Solutions
- Joanis Mechanical
- Gene Johnson Plumbing
- Double Bond Heating and Air
- Progressive Comfort Solutions
- Make It Wright HVAC
We don't rank by who pays us. Always confirm a contractor's license and insurance before hiring.
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