Chimney or side wall?
A high efficiency furnace vents out a side wall through plastic pipe. That can leave a water heater alone in a big old chimney, which may need a liner to draft safely. We check before we recommend.
PNW
Spokane Heating & Air
Swapping a furnace in a 1915 basement off Grand Boulevard is a different job from swapping one in a 2005 home near Five Mile. We plan for the house you actually live in, then give you a written price before anything is ordered.
New furnaces for Spokane homes
Most of the work in a furnace replacement in Spokane, WA happens around the box itself. Getting it down a narrow stairway. Deciding how it will vent. Making it fit ductwork that may date back to a coal or oil furnace from the 1920s. A good install plans all of that before install day, and that's how we do it.
We start with a system evaluation at your home. We look at the furnace, the flue or chimney, the gas line, the ducts and the returns, and we ask which rooms give you trouble. Then we sit down with you and lay out a few options, each with a written price. You decide. Nobody pushes.
On the South Hill, in Browne's Addition, Manito and Cliff/Cannon, it's common to find a furnace venting into a masonry chimney that was built for coal. Some homes still have an abandoned oil line or a tank fill pipe from before the gas conversion. Ducts were often cut in later, so returns are undersized or missing upstairs. None of that stops a replacement, but it changes what the right furnace and venting plan look like.
Plenty of homes in North Spokane, Nevada-Lidgerwood and on Five Mile Prairie were built in the 1990s and 2000s with basic builder-grade furnaces. Those are reaching 20 years now. The swap is usually simpler, and it's a good time to step up to a quieter two-stage or variable speed model.
What we plan for
For sizing and efficiency basics, read our full furnace replacement guide. These are the city-specific ones.
A high efficiency furnace vents out a side wall through plastic pipe. That can leave a water heater alone in a big old chimney, which may need a liner to draft safely. We check before we recommend.
Steep basement stairs, low beams and tight corners are normal in Logan, Hillyard and West Central. We measure the path and pick a cabinet that fits through it.
Ducts that once served a gravity furnace can be oversized in some spots and choked in others. We fix the worst problems so the new furnace isn't fighting them.
Condensing furnaces make water. In an older basement with no floor drain nearby, we plan a pump or a drain route that won't freeze.
Adding a heat pump with a gas furnace as backup gives you cooling for summer heat waves and cheap heat most of the winter.
Some older Spokane homes heat with a boiler and radiators. Swapping to a furnace means adding ducts, so we often suggest keeping the boiler instead.
Replace before it fails
When a furnace dies in a cold snap, you get whatever fits and whatever is in stock. When you plan the replacement in spring, summer or early fall, you get time to compare options, choose efficiency and features, and schedule a day that suits you. If your furnace is in its late teens, it's worth getting a free estimate now.
How it works
Most Spokane replacements are done in a day. Jobs with new venting or duct changes can take longer, and we tell you up front.
We measure the house, inspect venting and ducts, and listen to what's not working.
A few honest choices with a price for each, plus financing details if you want them.
Old furnace out and hauled away, new one in, gas, venting, drain and wiring connected.
Safety and airflow tests, a walk through of filters and thermostat, and your warranty registered.
While the system is open
Replacement day is the cheapest time to fix the things around the furnace, because the system is already apart. Two are especially worth thinking about in Spokane.
Smart thermostat integration. A two-stage or variable speed furnace only delivers its comfort if the thermostat can call for each stage. We set it up correctly on install day. More on that at thermostat service in Spokane.
Air quality. Wildfire smoke settles over the city most Augusts and Septembers, and older homes leak a lot of it inside. A better filter cabinet or a whole home air cleaner on the new furnace helps. See air quality services in Spokane.
Our installs
Our own photos from basements and utility rooms north of downtown.



It depends on the furnace size and efficiency, and on the house. Older homes may need a chimney liner, a new vent route or duct work, while many north side swaps are more direct. The estimate is free and written, so you see the real number first. Financing starts at $99 a month on approved credit.
Most replacements are finished in one day. A job that adds new venting through an old foundation or reworks ducts can run longer. In winter, we plan the work so your house is without heat for as short a time as possible.
Yes. We carry it out, haul it away and dispose of it properly. That's part of every replacement.
Yes. We install high efficiency condensing furnaces, two-stage and variable speed models, and pair them with smart thermostats that control each stage. In old homes, we confirm the venting and drain plan works before recommending one.
Yes. We're licensed in Washington under PNWSPSH772R2 and fully insured.
Not on its own, but it affects your choices. A standard efficiency furnace can keep using a sound, properly lined chimney. A high efficiency one vents out the side instead, which can leave a water heater needing a liner. We inspect and explain both paths.
Sometimes, especially for high efficiency or heat pump systems. We can point you to current utility and federal incentives when we give you your estimate.
Related
We serve the whole city, from Hillyard to Latah Valley, Comstock, Rockwood, Emerson-Garfield, Bemiss and Audubon-Downriver. East of the city line? See furnace replacement in Spokane Valley.

Book service
Tell us your neighborhood, roughly when the house was built and how old the furnace is. We'll come look at the basement, the venting and the ducts, then give you a written price.