Furnace Services in Seattle, WA
Expert furnace repair, replacement, and maintenance serving Capitol Hill, Ballard, West Seattle, and all of Seattle. Day & Night Elite Dealer with 10-year warranty. Served by Seattle City Light, not the utility most rebate articles assume.
Your Seattle Furnace Experts
Seattle homeowners across Capitol Hill, Ballard, and West Seattle rely on their furnaces to fight through the region's notoriously damp and chilly winters. With average winter temperatures hovering in the mid-30s to low 40s and persistent drizzle that seeps into every corner, a well-functioning furnace is not a luxury here — it is a necessity. From century-old Craftsman bungalows in Ballard to modern high-rise condos downtown, the diversity of Seattle's housing stock means furnace needs vary widely.
Seattle is the one city in our area where the money is in getting off oil, not off gas — and it is not a PSE electric city, so PSE's rebate table does not apply to you. The bonus tier closes for installs completed after September 30, 2026, so here the calendar matters as much as the paperwork.
The Washington State Energy Code lists Seattle at a 24°F winter design temperature (WAC 51-11C-80100, Table C-1). That is the number a Manual J load calculation for your home is run against, and it is the difference between equipment that carries the house on its own and equipment that leans on expensive backup heat every cold snap. Natural gas here comes from Puget Sound Energy. In Seattle we most often find oil furnaces and gravity "octopus" furnaces in pre-1940 Craftsman and Tudor stock, gas forced air in remodeled homes, and electric wall heaters in un-ducted bungalows — so we quote what your house actually has, not what the average Puget Sound home has.
Furnace Services for Seattle Homes
Why Seattle Homeowners Choose Us
Fast Response
Based in Federal Way, we reach Seattle quickly. Most furnace repairs are completed same-day, and installations are typically done within 24 hours of approval.
Know Local Codes
The mechanical permit for your furnace is issued by Seattle Department of Construction & Inspections (SDCI). We pull it, pay the fee, book the inspection and meet the inspector on site. Exterior work in Seattle may also go before the Seattle Landmarks Preservation Board and the neighborhood historic districts (Ballard Avenue, Columbia City, Pioneer Square, Harvard-Belmont).
Understand Local Homes
In Seattle we usually find oil furnaces and gravity "octopus" furnaces in pre-1940 Craftsman and Tudor stock, gas forced air in remodeled homes, and electric wall heaters in un-ducted bungalows. We size to your house at the 24°F design temperature the state energy code sets for this area — not to a rule of thumb. Near Elliott Bay and Shilshole Bay we specify corrosion-rated coils.
Heating Challenges for Seattle Homeowners
Who bills you for power decides what you can claim. Seattle is served by Seattle City Light. That means a $2,000 instant rebate for oil-to-heat-pump conversions on qualifying equipment, plus up to $4,000 more for moderate-income households (81–150% AMI) on installs completed by Sept 30, 2026. Seattle's program runs through participating installers and qualifying equipment, and the bonus tier closes for installs completed after September 30, 2026 — the calendar matters as much as the paperwork.
Seattle does not share Seattle's weather, and the code says so. The Washington State Energy Code lists Seattle at a 24°F winter design temperature (WAC 51-11C-80100, Table C-1). That is the number a Manual J load calculation for your home is run against, and it is the difference between equipment that carries the house on its own and equipment that leans on expensive backup heat every cold snap. Renton is 21°F — a real gap for towns this close together. Seattle is the milder side of that line, and equipment sized for the colder neighbor is equipment you paid too much for.
What we expect to find in a Seattle home. The local stock runs to Craftsman bungalows from the 1910s-1920s, Tudor Revivals, mid-century ranches, modern townhomes, and high-rise condos downtown. That usually means oil furnaces and gravity "octopus" furnaces in pre-1940 Craftsman and Tudor stock, gas forced air in remodeled homes, and electric wall heaters in un-ducted bungalows. Gas service here comes from Puget Sound Energy. Whether replacing a furnace is the right answer for your house is something we tell you after we look at it, not before.
The parts of the job that are specific to this address. In Seattle, the mechanical permit is issued by Seattle Department of Construction & Inspections (SDCI), and we pull it, pay it and meet the inspector; exterior work may go before the Seattle Landmarks Preservation Board and the neighborhood historic districts (Ballard Avenue, Columbia City, Pioneer Square, Harvard-Belmont), so where the outdoor unit sits is a permitting decision here, not just an aesthetic one; homes near Elliott Bay and Shilshole Bay get corrosion-rated coil coatings and a twice-yearly coil rinse instead of annual service — salt air is what kills condensers early on this shoreline; burn bans and wildfire-smoke advisories here are called by Puget Sound Clean Air Agency, which is the season that makes filtration worth specifying properly.
Quick Facts
Local details that change a furnace job in Seattle
Seattle is not a PSE electric city, which quietly invalidates most of the heat pump rebate advice on the internet. The facts below are the ones that actually apply to your meter.
- Electric utility
- Seattle City Light
- Natural gas
- Puget Sound Energy
- Winter design temp
- 24°F WSEC Table C-1, WAC 51-11C-80100
- Mechanical permit
- Seattle Department of Construction & Inspections (SDCI)
- Rebate program that applies
- Seattle's Clean Heat program
- Burn bans & smoke advisories
- Puget Sound Clean Air Agency
- Heat we usually find
- oil furnaces and gravity "octopus" furnaces in pre-1940 Craftsman and Tudor stock, gas forced air in remodeled homes, and electric wall heaters in un-ducted bungalows
- Salt-air exposure
- Elliott Bay and Shilshole Bay — corrosion-rated equipment recommended
- Design / historic review
- the Seattle Landmarks Preservation Board and the neighborhood historic districts (Ballard Avenue, Columbia City, Pioneer Square, Harvard-Belmont)
“Vlad and his team were extremely professional. Constant communication, clean workmanship, and reasonable pricing for our furnace repair.”
— Darius T., Federal Way, WA
Furnace Questions from Seattle Homeowners
Furnace replacement in Seattle typically ranges from $5,000 to $10,000, depending on the furnace model, efficiency rating, and any ductwork modifications needed. High-efficiency condensing furnaces (96-98% AFUE) from Day & Night, Carrier, or American Standard are at the higher end of that range but deliver significantly lower monthly heating bills. We provide free in-home estimates with transparent, written pricing.
Yes. The mechanical permit is issued by Seattle Department of Construction & Inspections (SDCI), and Washington State requires one for this work. We handle the whole thing — application, fee, and meeting the inspector for the final — so you never contact the permit desk yourself. In Seattle, exterior equipment may additionally need sign-off from the Seattle Landmarks Preservation Board and the neighborhood historic districts (Ballard Avenue, Columbia City, Pioneer Square, Harvard-Belmont), which we factor into placement before we quote. Every install meets or exceeds the current Washington State mechanical and energy codes.
Most furnace replacements in Seattle are completed in one day. If your installation involves ductwork modifications, moving the furnace location, or switching from one fuel type to another, the project may take two days. We schedule installations to minimize disruption and always leave your home clean.
Many Seattle homeowners are making the switch from gas furnaces to heat pump systems, and for good reason. Heat pumps provide both heating and cooling from a single unit, and they can qualify for Seattle's Clean Heat program rebates. The Pacific Northwest climate is ideal for heat pump performance. If your furnace is at end-of-life, this is the perfect time to evaluate whether a heat pump, hybrid system, or new high-efficiency furnace is the best fit for your home and budget.
Common signs your Seattle furnace needs replacement include: age over 15 years, frequent repairs, uneven heating between rooms, unusual noises like banging or squealing, yellow or flickering pilot light, rising energy bills despite normal usage, and visible rust or cracks on the heat exchanger. If you notice any of these issues, schedule a free inspection with Varsity Heating and Cooling.
Varsity Heating and Cooling installs Day & Night, Carrier, and American Standard furnaces in Seattle. These are industry-leading brands built for the Pacific Northwest climate, offering 80-98% AFUE efficiency ratings. As a Day & Night Elite Dealer, we have access to the full product line and can match the right furnace to your home's specific heating needs and budget.
The Washington State Energy Code lists Seattle at a 24°F winter design temperature (WAC 51-11C-80100, Table C-1). That is the number a Manual J load calculation for your home is run against, and it is the difference between equipment that carries the house on its own and equipment that leans on expensive backup heat every cold snap. A cold-climate heat pump holds its rated capacity well below that, which is why heat pumps genuinely work here rather than being a compromise. Gas here comes from Puget Sound Energy, and for some homes a hybrid — heat pump for most of the year, gas furnace for the coldest mornings — is the right answer. We will tell you if it is.
Furnace Services Near Seattle
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