Mini-Split Installation in Seattle, WA
Zoned, whisper-quiet comfort without ductwork. Perfect for additions, ADUs, and rooms that never quite reach the right temperature.
In the older homes we serve near Madison Park, Laurelhurst, and Mount Baker, a mini-split is frequently the cleanest way to add cooling to a house that was never built with ductwork for it in the first place.
Symptoms we see every week in Seattle
- One room that's always too hot or too cold
- Adding an ADU, addition, or converted garage
- Ductwork is impractical or too costly
- You want per-room temperature control
Spec'd to your Seattle home
We size every system to your actual demand — not a one-size guess. Here's what a typical mini-split installation includes:
| Capacity | 9k–48k BTU |
|---|---|
| SEER2 | Up to 30.5 |
| Noise | 19–26 dB (whisper) |
| Zones | 1–8 per system |
Mini-Split Installation in Seattle: what's different here
Older homes near Madison Park, Laurelhurst and Mount Baker often have oil or early gas furnaces, hot-water radiators, or no ductwork at all. Ductless mini-splits are a good fit for older Seattle homes in Madison Park and Laurelhurst that have baseboard heat or no ductwork upstairs. We plan line-set routes to keep them neat on the outside of the house.
Permits and inspections
A mini-split install typically needs a mechanical permit plus an electrical permit for its dedicated circuit. Mechanical and plumbing permits in Seattle go through Seattle Department of Construction and Inspections (SDCI). When the work needs a permit, we pull it, schedule the inspection and leave you the paperwork.
Utilities and rebates
Seattle homes get electricity from Seattle City Light, and most have PSE natural gas. Ask us which utility, state or federal rebates may apply to your address.
Where we work in Seattle
Our job records show more than 290 completed jobs for Seattle customers across ZIP codes 98122, 98105, 98103, 98107, 98118, 98115, 98144, 98125. We take mini-split installation calls in Madison Park, Laurelhurst, Windermere, Wedgwood, Mount Baker and the rest of Seattle.
Work we stand behind
12-year compressor warranty, 2-year labor, and a free first-season tune-up.
Book this serviceStraight answers for homeowners in Seattle.
Who issues the permit for mini-split installation in Seattle?
Mechanical and plumbing permits in Seattle go through Seattle Department of Construction and Inspections (SDCI). For mini-split installation, we apply for the permit, book the inspection, meet the inspector on site, and give you the final sign-off for your records.
Can a mini-split heat my whole Seattle home?
Yes, a multi-zone system can heat and cool most Seattle homes, but it depends on layout and insulation. We do a room-by-room load calculation and give a written quote. Ask us which utility, state or federal rebates may apply to your address.
Which Seattle neighborhoods do you cover?
Our job records show more than 290 completed jobs for Seattle customers across ZIP codes 98122, 98105, 98103, 98107, 98118, 98115, 98144, 98125. We take mini-split installation calls in Madison Park, Laurelhurst, Windermere, Wedgwood, Mount Baker and the rest of Seattle. Call (425) 615-5000 for same-day service.
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