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Radiator Help

Joined
27 Nov 2025
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Hi everyone,

I'm new to the forum!

I recently purchased a three-year-old house which, as I understand it, is still under the 10-year warranty with Barratt Homes (the builder). I’ve recently discovered a leak on my dining room radiator. It’s only a small dribble leak, but it’s enough to affect my boiler’s water pressure, as I’ve had a few warnings telling me to top it back up. The leak is situated on the ball joint at the top left-hand corner of the radiator.

I've included photos. I'm wondering if this could be easily fixed with something like metal putty, or whether it could be fixed by a plumber, or even, worst-case scenario, replaced entirely?

Any help or advice you can provide is greatly appreciated!

Thanks,

Phizix
 

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I've included photos. I'm wondering if this could be easily fixed with something like metal putty, or whether it could be fixed by a plumber, or even, worst-case scenario, replaced entirely?

I cannot clearly see where the water is leaking from, but the marks, suggest it is leaking from where the front to rear panel, linkage pipe, connects to what seems to be the front panel. If that is correct, then it would seem to be faulty manufacture of the radiator. The repair, will be complete replacement of the entire radiator.

Alternatively, some might suggest adding a sealant, to the water.

I doubt you would have any success, using any sort of sealant, or putty on the outside surface of the radiator.
 
Yes, it does look to be a faulty radiator and, if that's the case, Barratt should replace it under the 10 yr warranty.
The pictures also show stains from a leak around the bleed valve. This can easily be fixed by screwing it in a bit more or, failing that, removing it, fitting a new O-ring and refitting it.
 

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