Radiators warm at the bottom, cold at the top
Trapped air or low system pressure keeps hot water from filling each radiator, and bleeding plus a pressure check usually fixes it.
Radiator & Steam Heat ServiceOlder village houses in Constantine often keep heating equipment long past its expected life, and a little regular care is what separates a quiet winter from a cold one.

Constantine is a village on the St. Joseph River in St. Joseph County, south of Three Rivers and close to the Indiana line. Our technicians travel down from Kalamazoo to work on hot-water boilers, cast iron radiators, gas furnaces and the controls that tie them together. The work is ours from start to finish, carried out by technicians on our own payroll.
Much of what we do in 49042 is upkeep on equipment that has served a house for decades. A boiler that heats evenly but leaks at a valve, a furnace that lights on the third try, a radiator that stays cold at the top: these are fixable problems, and catching them in the fall costs less than an emergency visit in January.
The older homes in the village include two-story frame houses with tall ceilings, deep porches and basements built long before central air existed. A good number keep their original radiators fed by a hot-water boiler, and that kind of system can run well for a very long time when the pump, expansion tank and relief valve are kept in order. We bleed radiators, replace circulator pumps and set water pressure so every room gets its share.
Other houses here traded the boiler for a furnace decades ago, with ducts squeezed into closets, chases and old chimney spaces. Those layouts can leave a far bedroom cold or a front parlor drafty. A seasonal furnace tune-up keeps the burner clean and the blower set correctly, and we can point out where the ducts lose air. In houses with no ducts at all, ductless mini-splits add cooling without opening walls.

Southwest Michigan winters push heating equipment through months of steady use, with nights that drop below zero and snow that stays on the ground. In older homes with little insulation, a boiler or furnace runs longer to hold temperature, and small faults show up first on the coldest nights. Summer brings humid air, and riverside basements can stay damp well into fall, which rusts boiler fittings, flue pipes and water heater bases faster than a dry basement would.
Constantine calls are dispatched from our office at 327 S Rose Street in Kalamazoo, with technicians routed south past Three Rivers. Someone on our staff picks up (269) 360-5258 at all hours, all year. When you call about a boiler, tell us the make and whether it heats with water or steam, and we will load the matching pump, valves and gaskets before the drive south.
Common calls
Trapped air or low system pressure keeps hot water from filling each radiator, and bleeding plus a pressure check usually fixes it.
Radiator & Steam Heat ServiceA waterlogged expansion tank or a worn relief valve is the common cause, and both are replaced in one visit.
Boiler RepairBurner cleaning, flame sensor service, filter change and a safety control test before the heating season starts.
Furnace Tune-UpWe test for carbon monoxide and inspect the heat exchanger and flue for cracks or rust-through.
Heat Exchanger InspectionWall-mounted ductless heads cool chosen rooms without cutting into old plaster.
Ductless Mini-Split InstallationFAQ
Often, yes. Many cast iron boilers in Constantine homes are still sound, and the parts that wear out are the circulator pump, expansion tank, relief valve and burner. Replacing those keeps the boiler safe and working. We will tell you plainly if the heat exchanger itself is failing and replacement is the better spend.
Typical boiler repairs in Constantine run about $214 to $867, depending on the part. A circulator pump or expansion tank sits toward the middle of that range, and burner or control work can run higher. You hear the price from the technician after testing and before a single part is changed.
For older Constantine houses, yes. A tune-up typically costs $119 to $187 and catches worn igniters, dirty flame sensors and loose wiring before they cause a no-heat call. It also includes a carbon monoxide check, which matters more as furnaces and flues age.
Call (269) 360-5258. Our Kalamazoo office answers 24/7 and books the next open technician.