Boiler Replacement Cost in Maryland

Boiler replacement in Maryland costs $6,800 to $15,500 in 2026, though city-to-city prices vary quite a bit. Heating drives most HVAC spending in Maryland: its larger communities average 4,352 heating and 1,383 cooling degree days a year.

Boiler Replacement Prices in Maryland Cities

City	Estimate	Heating / cooling degree days
Baltimore	$5,200 to $11,800	3,858 / 1,748
Columbia	$7,400 to $16,900	4,313 / 1,469
Germantown	$7,100 to $16,100	4,977 / 990
Frederick	$6,400 to $14,600	4,275 / 1,397
Waldorf	$7,000 to $15,900	4,588 / 1,029

From 2020 through 2025, NOAA recorded 224 winter storm and ice events, 165 heat events, 60 extreme cold events and 205 hail reports in Maryland. 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 Maryland

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