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 |
Top-rated HVAC pros in Seattle
Vetted local companies serving Seattle, WA. Compare free quotes — no obligation.
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1
Better Air NW
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2
GREENTOP Heating
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3
Green Bear Heating And Air
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4
Goat Heating & Cooling
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5
Ben's Plumbing Heating & Air
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6
Go-Green Heating AC & Electric
Local companies compiled from public sources. Details shown for reference — always verify licensing before hiring.
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.
Furnace Replacement in Seattle: local factors that affect your cost
Seattle’s mild, very wet climate means constant moisture and little historical need for air conditioning. Homes traditionally lacked AC, but recent heat waves have driven a boom in heat pumps and cooling retrofits — electrification incentives apply.
A city permit and Washington’s energy code apply to most work. For the best pricing, book roofing for the dry summer window (demand peaks then). A local HVAC contractor who knows Seattle’s conditions and codes will give you the most accurate quote — request a few below to compare.
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
Tell us about the job — local, vetted pros will reach out with real prices. No obligation.
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.
Do I need a permit for a Furnace Replacement in Seattle?
A city permit and Washington's energy code apply to most work. A licensed local contractor should pull the permit and handle inspections as part of the job.
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.