Last updated: 7 October 2026
Rimko Plumbing Ltd provides radiator replacement in Cardiff for homes of every age. Whether one radiator is leaking or you want to replace every radiator in the house, we remove the old ones, fit the new ones, add new valves and refill the system ready to use.
Signs You Need a Radiator Replacement in Cardiff
- The radiator is cold at the bottom or in patches, even after bleeding
- Rust spots, weeping seams or water around the valves
- Brown or black water when you bleed it
- The room never feels warm enough
- Valves are seized and cannot be turned
- You are redecorating and want a different style or position
Radiators and Towel Rails We Fit
We fit standard panel radiators, column radiators that suit period homes, vertical radiators for narrow walls and heated towel rails for bathrooms. We size each radiator for the room so it heats properly, and we fit thermostatic radiator valves so you can control the temperature room by room.
Correctly sized radiators and thermostatic valves help you avoid wasting heat. The Energy Saving Trust has more advice on using your heating controls efficiently.
A Tidy, Straightforward Job
We protect your floors, drain the system, swap the radiator, refill, bleed and check for leaks. Where pipe positions don't match the new radiator, we adjust them neatly. You can also add a radiator or towel rail to an extension or new en suite.
We replace radiators across Cardiff, including Llanishen, Pentwyn and Penylan.
Recent Work
Radiator Replacement in Cardiff: FAQs
How long does a radiator replacement take?
A like-for-like swap is usually quick, often a few hours. Replacing several radiators or moving pipework takes longer, and we will tell you how long when we quote.
Can you move a radiator to a different wall?
Yes. We can extend or re-route the pipework so the new radiator sits where you want it.
Do new radiators need new valves?
We usually recommend new valves, as old ones are often worn or seized. Thermostatic valves also give you better control of each room.
Do you fit heated towel rails?
Yes. We fit towel radiators and heated towel rails, either as a straight swap or as part of a bathroom renovation.
Other Plumbing Services
Book radiator replacement in Cardiff
Call us to talk about your job or send an enquiry, and we will give you a clear quote.
Call 07535721488 Send an enquiry