Boiler Service for Lake Zurich Homes with Radiator & Radiant Heat
If your home heats with radiators or baseboard hot water, your "furnace" is actually a boiler — and boiler work is plumber work. From pilot and ignition failures to circulator pumps, leaking relief valves, waterlogged expansion tanks, and full boiler replacement, our licensed plumbers handle the whole system, including the gas line that feeds it. No heat right now? Call 779-217-8891; winter no-heat calls jump the queue.
Boiler Repair, Replacement & Maintenance
Boiler Repair
The calls we see most: the boiler won't fire (ignition, thermocouple, or gas valve), radiators stay cold while the boiler runs (circulator pump or air-bound lines), pressure creeping too high or too low (expansion tank or fill valve), water on the floor (relief valve or a failing section), and short-cycling that burns gas without making heat. Most boiler repair visits end the same day — our plumbers carry common parts for the brands used across Chicagoland.
Boiler Replacement & Installation
A boiler from the 1990s or earlier still limping along is costing you every month — modern high-efficiency units squeeze far more heat from the same gas. Boiler replacement done right starts with a heat-loss calculation so the new unit is sized to your home, not guessed at. Oversized boilers short-cycle and die young. We handle the full swap: old unit out, venting and gas piping brought to code, new boiler commissioned and balanced so every radiator actually gets hot.
Annual Maintenance & Tune-Ups
Annual boiler maintenance is the cheapest heat insurance there is: we clean the burner, check the heat exchanger, test safety controls and the relief valve, verify pressure and expansion-tank charge, bleed air from the loop, and inspect the venting. Fall is the right time — before the first hard freeze exposes the weak link. Ask about a maintenance visit when you call 779-217-8891.
Radiant Floor & Baseboard Heat
Hydronic baseboard and radiant floor systems run on the same principles as radiator heat — a boiler, a loop, and circulation. We repair leaking baseboard elements, replace failed loop circulators, balance zones that never seem to warm up, and tie new radiant zones into existing boilers where the system can support it.
Warning Signs Your Boiler Needs Attention
- Radiators cold on the top floor (air in the lines) or cold everywhere (circulator pump)
- Banging, kettling, or rumbling from the boiler — sediment or circulation trouble
- Pressure gauge creeping above 25–30 psi or repeatedly dropping to zero
- Water pooling under the boiler or a relief valve that drips constantly
- Pilot or ignition lockouts that need resetting more than once a season
- Gas bills climbing while the house never quite feels warm
Any of these is worth a call before it becomes a January emergency: 779-217-8891.
Boiler Questions from Lake Zurich Homeowners
A hydronic system is sealed — if pressure keeps dropping, water is leaving somewhere: a weeping relief valve, a pinhole in the piping, a failing expansion tank, or a leak inside the boiler itself. Topping it off weekly hides the symptom while the leak does damage. It's worth a proper diagnosis.
Yes — no-heat calls in freezing weather get priority dispatch, nights and weekends included. A house with no heat in January risks frozen pipes on top of the cold, so call the moment the boiler quits rather than waiting for morning.
Cast-iron boilers routinely run 20–30 years with annual maintenance; modern high-efficiency condensing boilers average 15–20. If yours is past 20 and needing repairs most winters, put the repair money toward replacement — the gas savings from a modern unit do part of the math for you.
Usually one of three things: air trapped in the lines (radiators need bleeding), a failed circulator pump, or a stuck zone valve. Cold radiators on the top floor point to air; cold everywhere points to the pump. Either way it's a standard diagnosis and usually a same-day fix.