Boiler Replacement Cost in Spokane, Washington
Expect to pay $6,200 to $14,100 for boiler replacement in Spokane, WA. Most homeowners end up near $10,500, depending on the equipment tier and how much of the old setup can be reused.
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Spokane Weather and HVAC Load
In a normal year, Spokane racks up 6,018 heating and 506 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in Spokane put in far more hours than the air conditioner. A normal year brings 123 nights at or below freezing and 29 days over 90°F. Snowfall averages about 45 inches. For a 2,000 sq ft house, this climate points to a heating load somewhere near 65,000 BTU/h. Treat that as a starting number. A Manual J calculation will move it up or down based on insulation and windows.
| Heating degree days / year | 6,018 |
|---|---|
| Cooling degree days / year | 506 |
| Nights at or below 32°F | 123 |
| Days above 90°F | 29 |
| Average low / high | 38.9°F / 60.7°F |
Spokane Housing Stock
The median Spokane home dates to 1961, according to the Census ACS. That makes the typical house about 65 years old. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Spokane has roughly 56,000 owner-occupied homes, or 58.3% of households. The median home value is $326,200, and median household income is $65,745. We use both figures to adjust labor and pricing for this page.
Between 2020 and 2025, NOAA's Storm Events Database logged 5 hail days and 12 days with damaging thunderstorm winds in Spokane County. The largest hail reported was 2.75 inches across. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost. Spokane County also had 2 tornado days in that period.
When Replacement Makes Sense
- Some radiators stay cold
- The boiler is 20 to 30 years old or more
- Leaks, rust, or pressure that keeps dropping
- The pilot or ignition keeps failing
What Moves the Price
- A new chimney liner or venting
- Fuel type: gas, oil or propane
- A combi boiler that also makes your hot water
- Condensing or non-condensing boiler
- Pumps, zone valves and the piping around the boiler
We raised the national figures about 13% for Spokane using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- The new boiler and the piping around it
- Flushing and refilling the system
- Removing the old boiler
- Startup and safety tests
- Venting and fuel hookups
Washington Permits, Efficiency Rules and Rebates
Washington falls in the DOE's North region. New split central air conditioners must meet at least 13.4 SEER2, and heat pumps sold anywhere in the U.S. need 14.3 SEER2 and 7.5 HSPF2. Expect the contractor to pull a mechanical permit for a replacement job in Spokane. If a bidder suggests skipping it, move on. Also ask for a Washington license or registration number and proof of insurance. The federal 25C tax credit ended for equipment installed after December 31, 2025, so incentives now come mostly from utilities and state programs. Check your electric and gas utility's rebate page before you pick equipment.
Before You Hire
- Ask for a heat-loss calculation. A lot of old boilers are much bigger than the house needs.
- Ask your gas or oil company about rebates on condensing boilers.
- For a steam system, hire a contractor who works on steam regularly.
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Boiler Replacement Questions from Spokane Homeowners
How much is boiler replacement in Spokane?
Plan on $6,200 to $14,100, with most jobs near $10,500. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule boiler replacement in Spokane?
Between late spring and early fall. Spokane averages 123 freezing nights a year, and heating calls spike from November through February.
Can I replace a boiler with a heat pump?
Yes, with an air-to-water heat pump or a ductless system. The radiators may need upgrading, because heat pumps run cooler water than boilers.
How long does a boiler last?
A cast-iron boiler can last 25 to 35 years. A modern condensing boiler usually lasts 15 to 20 with yearly service.
Boiler Replacement Near Spokane
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Spokane Felts Field; NOAA Storm Events Database 2020-2025, Spokane County. Prices are our estimates, not contractor quotes. Updated 2026.