Understand the service
Boiler service includes the hydronic system
A boiler heats water, but pumps, zones, controls, radiators, baseboards or in-floor loops determine where that heat goes. A good service call considers both the appliance and the distribution system.
High Demand Heating handles boiler maintenance, no-heat and leak diagnosis, control and circulation concerns, repair and replacement planning for residential and light-commercial systems.
Tell us what the system is doing
A useful service request starts with the equipment, exact symptoms and urgency. Share what changed, when it began, any visible error code and whether the system is still operating. That information is more useful than guessing which part has failed.
- No heat or uneven heating
- Leaks or pressure issues
- Unusual boiler noise
- An old, inefficient system
Information to gather before a boiler visit
- Note whether every zone or only one area is cold
- Photograph any error code and the normal pressure or temperature display
- Describe visible water without opening panels or adjusting valves
- Confirm whether the boiler also produces domestic hot water
- Call promptly for active leakage, gas odour or loss of essential heat
Repair, maintenance and installation scope
Boiler diagnostics
Scope and recommendations are confirmed after reviewing the equipment, property and approved work.Safety and performance maintenance
Scope and recommendations are confirmed after reviewing the equipment, property and approved work.Repair and component replacement
Scope and recommendations are confirmed after reviewing the equipment, property and approved work.Boiler installation
Scope and recommendations are confirmed after reviewing the equipment, property and approved work.A complete look at the boiler and heating system
Boiler problems can come from the appliance, controls or the hydronic distribution system. Diagnosis may include operating pressure and temperature, visible leaks, ignition, pumps, zones, controls, venting and the way heat reaches the building.
- Boiler controls, ignition and operating cycle
- Pressure, temperature and visible leak concerns
- Circulation, pumps and accessible zone controls
- Venting, condensate and safety components as applicable
Boiler repair or replacement planning
A repair can be the right answer when the equipment is serviceable and the failure is isolated. Replacement planning should consider boiler condition, repair history, building heat loss, radiation or in-floor zones, domestic hot-water needs and venting—not just the rating on the old nameplate.
Planning a boiler replacement
Boiler selection should consider building heat loss, existing radiation, zone controls, domestic hot-water demand, venting, fuel, drainage and service access. The old boiler's input rating is not enough by itself.
Replacement planning should also identify obsolete controls, circulation issues or distribution problems that a new boiler alone would not correct.
