Heating System Repair
Restore heat during Boston winters with fast combi-boiler fixes, radiator bleeding, and hydronic system diagnostics before pipes freeze.
Combi-boilers in older brownstones often fail due to scale buildup from Boston’s hard water, especially in the heat exchanger. We descale units on-site using food-grade citric acid solutions instead of acidic cleaners that corrode fittings. If a pressure relief valve leaks or radiators go cold unevenly, it often signals air locks or circulation pump issues—not full system failure.
Radiator bleeding is simple but often done wrong—venting when the system is hot or over-loosening the valve can dump scalding water. We show residents the correct technique and leave a valve tool behind. For baseboard systems common in Fenway and Allston, we check expansion tanks and zone valves to ensure each room heats evenly and safely.
Hydronic systems in mixed-use buildings require balancing to serve both residential and commercial zones without overheating one area. We use flow meters and delta-T sensors to calibrate pump speeds and valve positions. Preventative winter checks catch failing circulators or cracked heat exchangers before a freeze knocks out heat for an entire building.
