$9,200 – $16,100 for a heating and cooling system
What most homeowners spend; the full range runs $5,800–$34,500 by scope. That’s about 15% above the national average for Seattle.
Get a free quote from local pros →Cost swings widely with what you're actually doing — a cosmetic refresh and a full replacement are different projects. Here's the range at each scope.
In Seattle, WA, most homeowners spend $9,200–$16,100 for a heating and cooling system — the full range runs $5,800–$34,500 depending on scope. Seattle is one of the country’s higher-cost markets — expect prices roughly 15% above the national average, driven by higher labor rates, permit costs and steady demand.
Source: ZeroFi estimate · national industry cost ranges, updated 2026-07 · adjusted to Seattle by ZeroFi's local cost index (×1.15). Planning ranges, not quotes — describe your job for a real estimate.
Most US homes replace a central AC + furnace, or switch to a heat pump — the ranges above assume a ducted whole-home system. The regional product — not just labor rates — is why prices differ, so the ranges above reflect Seattle's typical setup.
Read the full hvac system replacement guide →
In Seattle, WA, expect $9,200–$16,100 for a heating and cooling system — about 15% above the national average. Your exact price depends on system size (tons) and efficiency (seer2 / afue) and ac-only vs. full ac + furnace vs. heat pump. Describe your job to get a real quote from local pros.
Seattle is one of the country’s higher-cost markets — expect prices roughly 15% above the national average, driven by higher labor rates, permit costs and steady demand.
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