Washington Furnace Replacement Cost (2026)
How much does furnace replacement cost in Washington? 2026 ranges run $2.8k–$8.3k (avg $5k). AFUE rating, fuel type, and ductwork condition included.
2026 Furnace costs in Washington
National average is $4,500. Washington's regional cost index (1.10×) puts the typical furnace project at roughly $4,950. Low-end $2,750, high-end $8,250. Furnace replacement including equipment and professional installation.
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