Furnace Installation & Replacement in Seattle, WA
A properly sized, high-efficiency furnace keeps every room warm through Pacific Northwest winters while cutting gas bills.
The older homes we serve near Madison Park, Laurelhurst, and Mount Baker often still run original furnaces, and replacing one is a good moment to address the knob-and-tube wiring or undersized panel nearby.
Symptoms we see every week in Seattle
- Furnace is 15+ years old or needs frequent repairs
- Uneven heating or cold spots across the home
- Rising winter gas bills from an aging unit
- Cracked heat exchanger or unreliable ignition
Spec'd to your Seattle home
We size every system to your actual demand — not a one-size guess. Here's what a typical furnace install includes:
| Efficiency | Up to 98% AFUE |
|---|---|
| Capacity | 40k–120k BTU |
| Fuel | Natural gas or propane |
| Lifespan | 15–20 years |
Furnace 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. Replacing a furnace in an older Seattle home usually means more than swapping the box. We check whether the original ducts in homes around Madison Park and Laurelhurst can handle the new unit's airflow, size the furnace with a load calculation, and often recommend a heat pump or dual-fuel system instead.
Permits and inspections
A furnace replacement needs a mechanical permit, and changes to the gas line are inspected too. 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. That includes 3 furnace installation jobs, most recently in 2023. We take furnace installation calls in Madison Park, Laurelhurst, Windermere, Wedgwood, Mount Baker and the rest of Seattle.
Work we stand behind
10-year parts warranty, 2-year labor, and permit closure documentation provided.
Book this serviceStraight answers for homeowners in Seattle.
Who issues the permit for furnace installation in Seattle?
Mechanical and plumbing permits in Seattle go through Seattle Department of Construction and Inspections (SDCI). For furnace installation, we apply for the permit, book the inspection, meet the inspector on site, and give you the final sign-off for your records.
Should I replace my furnace with a heat pump in Seattle?
It depends on your ductwork, panel capacity and fuel costs. We give written options for a furnace, a heat pump and a dual-fuel system so you can compare. 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. That includes 3 furnace installation jobs, most recently in 2023. We take furnace 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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