This is a visual maintenance checklist
Stop where specialist access, dismantling, gas, fixed electrics, fire-safety systems or structural work is involved.
WHY ROUTINE CHECKS MATTER
Catch early warning signs before failure
Pressure loss
Small leaks or component faults reduce system pressure.
Air in radiators
Heat distribution becomes uneven.
Control faults
Timers, thermostats or valves stop responding.
Restricted circulation
Sludge or closed valves reduce flow.
INTERACTIVE CHECKLIST
Heating Maintenance Checklist
Tick items as you complete them. Progress and notes save automatically on this device.
Monthly during heating season
Before winter
Annual checks
How to use this checklist safely Simple checks before recording maintenance. ⌄
- Check pressure only when the system condition matches manufacturer guidance.
- Do not remove the boiler casing.
- Look for water marks below valves and radiators.
- Test controls before assuming the boiler has failed.
- Treat repeated pressure loss as a fault, not routine topping up.
Important:
A tick means the item was checked, not that a fault is acceptable. Record defects in the notes box.
Why routine maintenance helps How repeated checks prevent larger failures. ⌄
Heating systems rely on stable pressure, good circulation and accurate controls. Small issues often show up as uneven heat or repeated pressure loss.
Useful record-keeping Extra information worth tracking. ⌄
- Compare radiator temperatures.
- Track pressure over several days.
- Check whether one zone or all zones are affected.
- Review boiler service records.
- Check pump and valve noise patterns.
Useful tools Simple items for visual maintenance checks. ⌄
- Torch
- Radiator key where appropriate
- Notebook
- Manufacturer instructions
- Thermometer where useful
When to call a professional Conditions that should end basic checking. ⌄
- Gas smell or carbon monoxide alarm activation occurs.
- Pressure repeatedly falls or rises abnormally.
- Water leaks from boiler or safety discharge.
- The boiler casing or combustion area is involved.
- The system repeatedly locks out.
Frequently asked questions Common maintenance-checklist questions. ⌄
Should I keep topping up pressure?
No. Repeated pressure loss should be investigated.
Do all cold radiators need bleeding?
No. Cold bottoms may indicate sludge rather than air.
When should heating be checked?
Before winter and regularly during the heating season.