Furnace Replacement Cost in Seattle, WA (2026)
Cost breakdown
| Item | Low | High |
|---|---|---|
| Furnace unit | $2,050 | $4,450 |
| Labor & installation | $1,250 | $2,650 |
| Venting & gas line | $500 | $1,050 |
| Thermostat & materials | $350 | $700 |
Cost by fuel type
| fuel type | Low | High |
|---|---|---|
| Gas furnace | $4,150 | $8,850 |
| Electric furnace | $2,950 | $7,100 |
| Oil furnace | $5,900 | $10,600 |
| High-efficiency (95%+ AFUE) | $5,900 | $11,800 |
Estimate your Furnace Replacement cost
A Furnace Replacement in Seattle, WA typically costs between $4,150 and $8,850, with most homeowners paying around $6,500. Costs in Seattle run above the national average, driven by local labor rates and permit fees.
Below is a full cost breakdown, a price comparison by fuel type, the factors that move the price in Seattle, money-saving tips, and how to hire the right pro. Prices are based on 2025–2026 industry data and updated regularly.
What's included in the cost
- The new furnace unit
- Labor, venting, and gas-line connection
- Removal of the old furnace
- New thermostat and permit
What affects the price
- Fuel type (gas, electric, or oil)
- AFUE efficiency rating
- Furnace size (BTU output)
- Venting and gas-line modifications
How to save on Furnace Replacement in Seattle
- Buy in the off-season
- Choose the right AFUE for your climate
- Claim high-efficiency tax credits and rebates
- Bundle with AC replacement to save on labor
Get free quotes for Furnace Replacement
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How to hire the right pro
- Confirm licensing and insurance
- Ask for correct BTU sizing
- Get AFUE and warranty in writing
- Get multiple itemized bids
Frequently asked questions
How much does a Furnace Replacement cost in Seattle?
In Seattle, WA, a Furnace Replacement typically costs $4,150 to $8,850 (average about $6,500). Your exact price depends on the specifics below.
Cost figures are based on 2025–2026 industry data (HomeGuide, Angi) and adjusted for local labor rates. Actual prices vary by project — get free local quotes for an exact figure.