How much does hvac replacement cost in Seattle?
Seattle, WA · King County · 23 ZIP codes · Data updated May 2026
A hvac replacement in Seattle typically costs $7,395 - $17,250, with most homeowners paying around $14,117. Seattle runs about 41% above the Washington median, and quotes can vary up to 72% between its cheapest and most expensive ZIP codes, so the neighborhood matters as much as the contractor.
It's a strong investment here: homeowners in this region recoup roughly 77% of the cost at resale, about $10,800 on a typical Seattle job.
October is low-demand season for hvac replacement in this climate. Contractors in King County are booking about 3 weeks out, and rates run about 10% below the annual average, a good window to book.
Seattle Cost Range
$7,395 - $17,250
Typical: $14,117
Strong ROI
Equity Gain
$10,800
Added at resale
on a typical Seattle job
Low season · ~3 wk contractor lead time
HVAC Replacement Cost by ZIP Code in Seattle
Each ZIP gets its own estimate from local home values and labor rates. Open yours for the full breakdown, seasonality, and ROI detail.
| ZIP | Estimated range | vs. city average | Details |
|---|---|---|---|
| 98134 | $7,395 - $10,005 | -38% | Full estimate → |
| 98104 | $9,265 - $12,535 | -23% | Full estimate → |
| 98121 | $9,605 - $12,995 | -20% | Full estimate → |
| 98101 | $10,030 - $13,570 | -16% | Full estimate → |
| 98106 | $11,390 - $15,410 | -5% | Full estimate → |
| 98108 | $11,900 - $16,100 | -1% | Full estimate → |
| 98102 | $12,495 - $16,905 | +4% | Full estimate → |
| 98118 | $12,665 - $17,135 | +6% | Full estimate → |
| 98103 | $12,750 - $17,250 | +6% | Full estimate → |
| 98105 | $12,750 - $17,250 | +6% | Full estimate → |
| 98107 | $12,750 - $17,250 | +6% | Full estimate → |
| 98109 | $12,750 - $17,250 | +6% | Full estimate → |
| 98112 | $12,750 - $17,250 | +6% | Full estimate → |
| 98115 | $12,750 - $17,250 | +6% | Full estimate → |
| 98116 | $12,750 - $17,250 | +6% | Full estimate → |
| 98117 | $12,750 - $17,250 | +6% | Full estimate → |
| 98119 | $12,750 - $17,250 | +6% | Full estimate → |
| 98122 | $12,750 - $17,250 | +6% | Full estimate → |
| 98125 | $12,750 - $17,250 | +6% | Full estimate → |
| 98126 | $12,750 - $17,250 | +6% | Full estimate → |
| 98136 | $12,750 - $17,250 | +6% | Full estimate → |
| 98144 | $12,750 - $17,250 | +6% | Full estimate → |
| 98199 | $12,750 - $17,250 | +6% | Full estimate → |
Frequently Asked Questions
How much does a hvac replacement cost in Seattle?
Based on 2026 data, a hvac replacement in Seattle, WA costs $7,395 - $17,250, with a typical price around $14,117. The range covers Seattle's 23 ZIP codes and the ±15% variance between contractor bids.
Is a hvac replacement worth it in Seattle?
Homeowners in this region typically recoup about 77% of the cost at resale, roughly $10,800 on a $14,117 project. That makes it one of the stronger-returning projects you can do here.
Why do hvac replacement quotes vary across Seattle?
Local home values and labor rates differ by ZIP code. In Seattle, the same project can cost up to 72% more in the most expensive ZIP than in the least expensive one. Check your exact ZIP below for a precise range.
Other Project Costs in Seattle
Sources: Remodeling Magazine Cost vs. Value, Zillow ZHVI, BLS construction wages, US Census. Methodology