Boiler Replacement Cost in Hawaii

Boiler replacement in Hawaii costs $6,600 to $14,900 in 2026, though city-to-city prices vary quite a bit. Cooling drives most HVAC spending in Hawaii: its larger communities average 34 heating and 3,303 cooling degree days a year.

Boiler Replacement Prices in Hawaii Cities

City	Estimate	Heating / cooling degree days
Urban Honolulu	$6,300 to $14,300	4 / 2,699
East Honolulu	$6,700 to $15,200	0 / 3,962
Hilo	$5,300 to $12,000	0 / 3,283
Pearl City	$6,700 to $15,200	0 / 4,767
Waipahu	$6,500 to $14,800	0 / 3,754

From 2020 through 2025, NOAA recorded 5 winter storm and ice events, 0 heat events, 0 extreme cold events and 2 hail reports in Hawaii. 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 Hawaii

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