Boiler Replacement Cost in Des Moines, Iowa
Expect to pay $5,800 to $13,100 for boiler replacement in Des Moines, IA. Most homeowners end up near $9,800, depending on the equipment tier and how much of the old setup can be reused.
Compare Free Quotes in Des Moines
Des Moines Weather and HVAC Load
Des Moines logs 6,177 heating degree days and 1,070 cooling degree days in a normal year, based on the closest NOAA weather station. Heating is the bigger job here, and furnaces and heat pumps in Des Moines put in far more hours than the air conditioner. Count on roughly 128 nights below 32°F and 22 afternoons past 90°F in a typical year. Snowfall averages about 37 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 | 6,177 |
|---|---|
| Cooling degree days / year | 1,070 |
| Nights at or below 32°F | 128 |
| Days above 90°F | 22 |
| Average low / high | 41.3°F / 60.5°F |
Des Moines Housing Stock
The median Des Moines home dates to 1960, according to the Census ACS. That makes the typical house about 66 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. Des Moines has roughly 54,000 owner-occupied homes, or 60.4% of households. With a median household income of $63,966 and a median home value of $183,700, local labor rates come out near the national middle in our model.
Polk County had 20 hail days and 30 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. The largest hail reported was 3.25 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage. Polk County also had 8 tornado days in that period.
When Replacement Makes Sense
- Leaks, rust, or pressure that keeps dropping
- The pilot or ignition keeps failing
- Fuel bills keep going up
- Some radiators stay cold
What Moves the Price
- Pumps, zone valves and the piping around the boiler
- Fuel type: gas, oil or propane
- Condensing or non-condensing boiler
- A combi boiler that also makes your hot water
- A new chimney liner or venting
We raised the national figures about 5% for Des Moines 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
- Venting and fuel hookups
- Startup and safety tests
- Removing the old boiler
- Flushing and refilling the system
- The new boiler and the piping around it
Iowa Permits, Efficiency Rules and Rebates
Iowa 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. Plan on a mechanical permit for most replacements in Des Moines; the contractor normally pulls it. Before you sign, ask each bidder for their Iowa 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
- A combi boiler frees up space and replaces your water heater.
- Ask for a heat-loss calculation. A lot of old boilers are much bigger than the house needs.
- For a steam system, hire a contractor who works on steam regularly.
Get Free Boiler Replacement Quotes in Des Moines
Tell us where you are and up to three licensed local pros will get in touch. You don't have to hire any of them.
Boiler Replacement Questions from Des Moines Homeowners
How much is boiler replacement in Des Moines?
Plan on $5,800 to $13,100, with most jobs near $9,800. 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 Des Moines?
Between late spring and early fall. Des Moines averages 128 freezing nights a year, and heating calls spike from November through February.
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.
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.
Boiler Replacement Near Des Moines
- Cedar Rapids $6,000 to $13,600
- Davenport $5,700 to $13,000
- Sioux City $5,900 to $13,500
- Ankeny $7,200 to $16,400
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Des Moines International Airport; NOAA Storm Events Database 2020-2025, Polk County. Prices are our estimates, not contractor quotes. Updated 2026.