Boiler Replacement Cost in Missouri

Across Missouri, homeowners pay $5,800 to $13,100 for boiler replacement. Climate, labor rates and housing age all move the price. In Missouri's cities, the median home dates to about 1975.

Boiler Replacement Prices in Missouri Cities

City	Estimate	Heating / cooling degree days
Kansas City	$5,600 to $12,700	4,613 / 1,707
St. Louis	$5,100 to $11,700	4,291 / 1,769
Springfield	$5,000 to $11,300	4,504 / 1,400
Columbia	$5,700 to $12,900	4,668 / 1,487
Independence	$5,400 to $12,200	5,206 / 1,245

From 2020 through 2025, NOAA recorded 736 winter storm and ice events, 606 heat events, 473 extreme cold events and 2,218 hail reports in Missouri. Those are the days when emergency HVAC calls pile up.

When Replacement Makes Sense

The boiler is 20 to 30 years old or more
Leaks, rust, or pressure that keeps dropping
Some radiators stay cold
Fuel bills keep going up
The pilot or ignition keeps failing

What Moves the Price

Condensing or non-condensing boiler
A combi boiler that also makes your hot water
Fuel type: gas, oil or propane
A new chimney liner or venting
Pumps, zone valves and the piping around the boiler

Common Questions

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.

Other HVAC Prices in Missouri

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