Central Heating Repairs

If your radiators are cold, certain rooms won’t heat up, or your system keeps losing pressure, the issue may not be the boiler itself.

We provide professional central heating repairs, diagnosing and fixing problems across the entire heating system — including pipework, pumps, valves and radiators.

All work is carried out safely and professionally to restore reliable heating performance.

Central Heating Repairs

Common Central Heating Problems

We regularly attend homes with a wide range of heating issues. Many problems start small but can worsen over time if left unresolved, leading to reduced comfort and higher repair costs.

Uneven Heating

Radiators not heating evenly, cold spots, or heating working only upstairs or downstairs often indicate circulation or balancing issues.

 

Noisy or Blocked Systems

Pressure & Flow Issues

System pressure dropping, airlocks, or poor water circulation can prevent your heating system from operating efficiently.
Component Failures

Component Failures

Faulty circulation pumps or motorised valves can stop heat from reaching parts of your property altogether.
Pressure & Flow Issues

Noisy or Blocked Systems

Banging or gurgling pipework and sludge-filled radiators are common signs of blockages or internal system buildup.

Radiators Not Heating Properly

If your radiators are cold at the top, cold at the bottom, only partially warm, or completely cold, it’s a clear sign that your heating system isn’t operating as it should. These issues often result in uneven heat distribution and reduced comfort throughout the property.

Radiators Not Heating Properly

Possible Causes

Common causes include air trapped in the system, sludge build-up inside radiators, poor system balancing, faulty radiator valves, or circulation problems. Accurate diagnosis is essential to restore proper heat distribution and ensure your heating system runs efficiently and reliably.

Circulation & Pump Issues

Your heating system relies on a circulation pump to move hot water efficiently through radiators and pipework. If the pump fails or circulation becomes restricted, you may experience uneven heating, cold areas within the property, boiler overheating, or repeated system lockouts. In these cases, professional pump testing and replacement may be required to restore safe and reliable operation.

Motorised Valve Faults

Motorised valves control the flow of water between your heating and hot water circuits. When a valve becomes faulty, it can cause issues such as heating without hot water, hot water without heating, heating running constantly, or the system failing to respond to controls. Replacing the faulty valve restores proper control and ensures your system operates efficiently.

Sludge & System Blockages

Over time, heating systems can accumulate rust, debris, and sludge, which reduces efficiency and restricts water circulation. This can lead to cold radiators, noisy pipework, and increased strain on system components. In some cases, professional system cleaning or powerflushing may be recommended to restore performance and improve heating efficiency.

Pressure & Expansion Problems

If your heating system frequently loses pressure, the issue may be caused by small pipe leaks, a faulty expansion vessel, or a problem with the pressure relief valve. Ignoring pressure-related problems can place strain on the boiler and may eventually lead to system shutdown, making prompt diagnosis and repair essential.

Why Choose Us for Central Heating Repairs

We repair the system properly, not just the symptoms.

Frequently Asked Questions

If the boiler fires but radiators stay cold, the issue is often within the heating system.

This may be due to air, sludge, or balancing issues.

In many cases, yes, depending on the fault.

No. It is recommended only when sludge build-up is confirmed.

Yes. All gas-related work is carried out by a qualified Gas Safe registered engineer.