Boiler Repair in Dover

On a boiler repair call in Strafford County, a contractor goes to the burner and ignition system first, because those are the parts that cycle every time the boiler fires and they carry the most wear by the time something fails. Homes in Strafford County, NH run heat about eight months a year, from October through May. Across that kind of season, the heat exchanger takes repeated thermal stress, and hairline fatigue in it shows up in ways that pressure and combustion readings catch before a visual inspection does. A boiler that has been short-cycling will have worn its igniter and flame sensor harder than its age alone suggests.

Piping that has been rerouted, controls that have been replaced more than once, and heat exchangers carrying the record of every patch job since installation are what a contractor encounters in much of this county's housing. Half the homes in Strafford County, New Hampshire were built in 1979 or earlier (2020-2024 ACS 5-year). A boiler running in a house that old is rarely the system the house was built with, and the internals of what is there now reflect decisions made by several different technicians over a long span. That layered history is what determines the parts a repair actually calls for, because a component sourced for the current unit may not seat correctly against original piping that was adapted rather than replaced.