How Much Does HVAC Installation Cost in Seattle, WA?
Cost to install a new heating and cooling system. Updated March 2026 with data from BLS, U.S. Census Bureau, and industry surveys.
Typical Cost Range
$7.740 – $17.200
+72% vs national average
$7.740$12.470$17.200
LowNational avg: $7.250High
Seattle vs State & National Average
| Category | Seattle | Washington Avg | National Avg |
|---|---|---|---|
| Average cost | $12.470 | $12.209 | $7.250 |
| Low estimate | $7.740 | $9.157 | $5.438 |
| High estimate | $17.200 | $15.872 | $9.425 |
Detailed Cost Breakdown
| Item | Low | High | |
|---|---|---|---|
| Central AC unit | $5.160 | $12.040 | |
| Furnace | $4.300 | $10.320 | |
| Heat pump | $6.880 | $13.760 | |
| Ductwork modification | $1.720 | $5.160 | |
| Labor & installation | $2.580 | $6.020 |
HVAC Installation in Nearby Cities
Frequently Asked Questions
How much does hvac installation cost in Seattle?
In Seattle, WA, hvac installation typically costs between $7.740 and $17.200. The average is $12.470, which is 72% above the national average.
Is Seattle expensive for hvac installation?
Seattle has a cost-of-living index of 172 (100 = national average). HVAC Installation costs are 72% higher than the national average of $7.250.
What factors affect hvac installation costs in Seattle?
Key factors include local labor costs, cost of materials, market competition, Washington state regulations, and Seattle's overall cost of living (index: 172/100). Prices can also vary by season and specific requirements.