Central Heating Repair in Cardiff

Heating problems we sort out

• Radiators cold at the top, the bottom, or completely
• Heating on downstairs but not upstairs
• System losing pressure or needing constant topping up
• Noisy pipes, banging and kettling
• Failed circulation pumps
• Sticking or seized motorised valves
• Thermostat, timer and control faults
• Leaking radiators, valves and pipework
• New radiators fitted, replaced or repositioned

We diagnose before we replace

It is easy to fit a new pump or valve and hope for the best. We would rather test the system, work out what is actually failing, and fix that. It costs you less and the repair lasts.

Once the fault is sorted we balance the radiators so the heat is spread evenly through the house, which is a step that often gets skipped and makes a real difference to how warm the rooms feel.

Sludge, filters and system health

Most heating problems in older Cardiff properties come down to sludge — a black iron oxide build-up that settles in radiators and blocks pipes and pumps. It makes the boiler work harder, so you pay more for less heat.

Where it is needed we flush the system and fit a magnetic filter with the correct inhibitor, so the system stays clean rather than silting up again within a couple of years.