What a Boiler Job Costs

No price appears

BoilerBridge routes calls to independent contractors who set their own prices, and the range on heating work is wide enough that a national figure would mislead. No source we would cite publishes one.

What drives it

Whether the fault is a component or the vessel. Circulators, controls, expansion tanks and relief valves are replaceable parts; a failed heat exchanger ends the appliance. Establishing which is most of the decision.

Then access and the rest of the loop. A replacement that leaves oversized emitters, uninsulated pipework and an uncommissioned temperature control behind delivers less than the AFUE on the box suggests.

The running cost that belongs in the sum

DOE’s current minimums are 84 to 86 percent depending on fuel and type, and its federal purchasing guidance asks 0.90 AFUE for ENERGY STAR certified gas boilers. Against a pre-standard appliance that gap is real and it runs every winter.

It is not an argument for replacing a working boiler. It is an argument for putting the figure in the sum when the decision is already open.

Source: US Department of Energy, Energy Conservation Standards for Residential Boilers; US Department of Energy FEMP, Purchasing Energy-Efficient Residential Gas Boilers.

The two things a replacement quote should rest on

Which component was tested, and what the combustion readings were. A quote that mentions neither has reached its conclusion without the evidence that supports it.