Radiator Repair & Installation in Coventry

Radiators are the backbone of your central heating system. When one stops working properly — or stops working entirely — it can leave entire rooms cold and uncomfortable. Cathedral Gas Services carries out radiator repairs, replacements, and new installations throughout Coventry and Warwickshire, keeping your home warm and your heating system running at peak efficiency.

Common Radiator Problems We Fix

Our engineers handle all types of radiator faults.

First Visit Fix Rate

Most repairs completed on the first visit

Cold spots at the top or bottom of the radiator

Radiators not heating up at all

Leaking or dripping radiator valves

Noisy radiators — banging, gurgling, or hissing

Radiators taking too long to heat up

Rust, corrosion, or discoloured water in the system

TRV (thermostatic radiator valve) faults

Radiator Bleeding & Balancing

Cold spots at the top of a radiator are usually caused by trapped air, which can be fixed by bleeding. Cold spots at the bottom typically indicate sludge build-up within the system. Our engineers can identify the cause quickly and carry out the correct fix — whether that’s bleeding, power flushing, or chemical treatment to remove sludge and scale.
We also carry out radiator balancing — adjusting the flow of hot water to each radiator so that every room in your home heats evenly. This is particularly important after a new boiler installation or if you’ve had radiators added to the system.

New Radiator Installation

All installations are carried out to Gas Safe standards, with proper pipework connections and valve fitting to ensure long-lasting, safe performance.

Planning a home renovation? Adding a new room? Or simply want to upgrade your existing radiators to a more modern, efficient design? We supply and install a full range of radiator styles

  • Standard panel radiators
  • Double panel radiators for greater heat output
  • Designer and column radiators
  • Bathroom towel rail radiators
  • Low surface temperature (LST) radiators for homes with children

Power Flushing Service

If your entire heating system is suffering from cold spots, slow heating, or discoloured water, a power flush may be the solution. This process circulates a powerful cleansing agent through your system to remove sludge, rust, and scale — restoring efficiency and extending the life of your boiler and radiators. We recommend power flushing before any new boiler installation for best results.

We recommend power flushing before any new boiler installation for best results.

  • Cold spots across multiple radiators
  • Slow or uneven heating throughout the home
  • Discoloured or dirty system water
  • Noisy boiler or pump
  • Recommended before new boiler installation

Areas Covered

Radiator repair and installation services available in:

Not sure if we cover your area?

Call us on 07389 111 999 — we'll let you know instantly.

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Whether you need an urgent repair or are thinking about upgrading, we’d love to help.