How much does HVAC installation cost in Seattle? The usual furnace & heating job filed with Seattle is $7,550, from 17,985 priced permits (October 2023 through September 2026); the middle half of firms file between $6,500 and $14,000. A filed value is what the contractor wrote on the permit, not a quote or the final bill.
The usual furnace & heating job filed with Seattle is $7,550, from 17,985 priced permits, October 2023 through September 2026. The middle half of firms usually file between $6,500 and $14,000. Half of jobs were filed for less, half for more. A filed value is what the contractor wrote on the permit, not a quote or the final bill. A furnace & heating permit here usually takes 66 days from issue to final inspection. How long permits take →
Approximately, from each firm's own spread: every firm's range of filed values, weighted by its 17,985 priced permits across 311 firms, pooled into one. Half of Seattle furnace & heating permits were filed between $5,200 and $12,400.
| Percentile | Filed value | Reads as |
|---|---|---|
| 10th | $3,000 | 1 in 10 permits filed below |
| 25th | $5,200 | 1 in 4 filed below |
| 50th | $7,600 | the middle permit |
| 75th | $12,400 | 1 in 4 filed above |
| 90th | $19,800 | 1 in 10 filed above |
Firms split into thirds by the usual value of the homes they work on, with each third's usual filed value weighted by permits. Home values: King County Assessor appraised values.
| Firms working on | Usual home value | Usual filed value | Firms | Permits |
|---|---|---|---|---|
| Lower third | under $906,000 | $8,000 | 103 | 3,727 |
| Middle third | $906,000–$1,140,000 | $7,500 | 104 | 12,594 |
| Upper third | $1,151,000 and up | $10,000 | 104 | 2,138 |
Top 10 by permits in the last 12 months. Usual is each firm's middle filed value; middle half is the range its middle half of jobs were filed in. Busy is not the same as careful: pick what you value to build a list.
| Firm | Permits | Last 12 mo | Usual | Middle half | Finished |
|---|---|---|---|---|---|
| Greenwood Htng & Home Services | 2,719 | 901 | $7,500 | $6,500–$10,000 | 81.3% |
| Ballard Natural Gas Service | 1,124 | 409 | $6,000 | $6,000 | 93.2% |
| Comfy Air LLC | 581 | 236 | $5,600 | $4,500–$6,500 | 96.4% |
| Gene Johnson Plbg Htg Elec LLC | 694 | 221 | $9,397 | $5,062–$17,928 | 64.8% |
| Evergreen Home Heating & Engy | 699 | 212 | $5,000 | $5,000 | 92.7% |
| Sutter Home & Hearth Inc | 582 | 201 | $7,341 | $6,146–$9,144 | 97.3% |
| Seatown Electric Corp | 793 | 198 | $8,000 | $6,500–$14,000 | 96.3% |
| Washington Energy Svcs Co LLC | 590 | 181 | $6,600 | $5,200–$13,000 | 92.0% |
| Bob's Heating & Air Cndtng LLC | 566 | 169 | $3,000 | $3,000–$7,000 | 91.3% |
| Ecospark Heating & Cooling | 364 | 152 | $14,000 | $12,000–$16,000 | 99.2% |
Line your quote up against the file. In Seattle, 1 in 10 furnace & heating filed values sit under $3,000, the middle half between $5,200 and $12,400, and 1 in 10 over $19,800.
Seattle files the fewest furnace & heating permits in August (87 against an average month of 100) and the most in October (130). If you can choose, ask for quotes in a quiet month. We have no prices by month, so this is about crews' schedules, not a discount. When each trade is busiest in Seattle →
Source: City of Seattle (SDCI) building, trade and electrical permits on single-family and duplex homes (the city's open-data exports). The window is October 2023 through September 2026; a permit filed after that isn't here yet.
Usual is the middle permit: half were filed for less, half for more. Only permits with a filed value count; a value of $0 or none is left out.
The spread is approximate: we keep seven points of each firm's own range of filed values, not every permit, and pool them.
Nobody paid to be on this page and nobody can. How the records work in Seattle →
Furnace & Heating cost in other cities: Nashville Orlando New York City Cincinnati Cleveland Pittsburgh Miami Colorado Springs Boulder Saint Paul Arlington, VA Somerville Cary Cape Coral Palo Alto Denton Medford Elk Grove Bismarck Wheaton, IL Marin County (unincorporated) Sacramento County (unincorporated) Citrus Heights, CA
Other job costs in Seattle: Heat Pump & AC · Electrical · EV Charger · Solar & Battery · Alarm & Low-Voltage · Roofing · Boiler · Stairlift & Home Elevator · Fire Sprinkler