Cavity wall insulation

[Shitshower]

I bought a house with cavity wall insulation (ex council house) and the guarantee has a couple of years left (been installed 20 odd years ago)
Im not sure what’s it’s meant to do, but I’m not sure it’s doing it anymore. None of the rooms really retain the heat and the external walls are pretty cold. We’ve just had to wipe a load of damp off the external wall where my daughter’s bed was and I’ve noticed that at the very bottom the wall is freezing.

Anyway, allowing for the fact it has this 25 year warranty, does that mean they would be liable if it’s no longer doing what it does? I appreciate it would need removing and refilling, but I also know cavity wall insulation is not considered the greatest thing to have any more.

I am considering lining the walls with insulating plasterboard instead.

As a footnote, all the houses here seem to run cold, it’s seems to be their design flaw. All my walls are cold whether they are external or internal, it’s just seemingly a chilly house.

Would avoid but insulated plasterboard on the walls, will just end up getting condesation and mositure on the external walls and more damp. Battens and roll insulation is the way to go with an air gap but alot of effort.

The cavity insulation might have sagged or the material might not have a good U value to whats on the market today. Could get current cavity wall insulation removed and fill in polystyrene bead insulation? Also they would drill some holes and inspect what the current insulation is like using a camera.

I have a CIGA guarantee with the cavity wall. Would they do that at their cost or mine? There is a particular spot in the corner that is very cold!

I’ve just looked and it was put in in 2005!

Yeah CIGA could cover you, might just be theres no insulation in that spot so theres cold bridging with the outside wall. Worth contacting them

Did you get anywhere with CIGA? I have a similar problem, but they are only offering to remove the insulation from the one wall where it's causing damage to the internal plasterboard (damp bridged due to voids and rubble). I was expecting them to remove the lot given how cold the walls are, but they say there's nothing obvious wrong with the other 3 walls.

I cannot image you having much success with your claim.