Hi,

I am considering having Cavity wall insulation and loft insulation, I can get upto 75% government grant.

Has anyone ever had cavity wall insulation done before, how noticeable was the difference? I have read that it causes some problems with rising damp, have you experienced any problems?

We had it done in our old house. It wasnt noticeable at all. In fact the only thing we noticed was that the company were supposed to paint the holes they had made and filled in but they didnt.

We got it free as me mum got a 100% grant due to her working in the NHS or summit like that. Dont think id pay to get it done, well not full price, but 25% sounds good.

pay 25% for something he wont notice with the possibility of damp sounds good?

lol, it depends on the style of your house wether you get damp or not, how olds the house mate !

Well we never got damp as a result, and although we didnt notice a difference, it supposedly helps retain heat.

IE. when we turned the central heating off, it supposedly kept the heat in longer then without it.

I never noticed it, nor did my mum, but its not something you really think about. It must work as they are filling the cavity in the walls (provided you house has them) with insulation.

We already had two sets of loft insulation, the original one from when the house was built and they put a second layer in as standard when they did the central heating.

Id be very surprised if your house didnt already have one or two layers of loft insulation.

we had cavity wall insulation done free from the disablity people and we could notice it alot mate but then we had the old aluminum window frames from about 20 yrs ago which get cold and let alot of cold through so we ave now changed to upvc window frames and it is alot warmer so yes it is noticable

matty if it didn't work they wouldn't do it, My Bro does this for a living, wall cavity insulation and roof insulation, iirc from when i worked with him the std thickness for the roof insulation is 300mm thick.

It's obvious that you won't notice the effects straight away, to put it in simple terms. from having it done with a good double glazing windows, draft proofing carried out, you daily heating , ie combi/boiler will be on less time thus saving you some money.

you notice on terrace houses who has had it done in the winter due to ice/snow still being on their roofs.

Did I say it didnt work?

Yeh we had it done on a old modern house.
It was a semi detached so it was noticeable.

But as mentioned its probably only as good as the next weakest link. So i think that has to be taken in to consideration too.

The house is about 50-60 year old ex-council house.

The insulation in the loft is pretty awful, the house won't retain heat atall, it is freezing even when the central heating is on.

Id deffo say go for it then! Even more so for the loft insulation if nothing else.

Dont worry too much about the damp concerns.

how long has the house been Ex-council?

also damp concerns, the surveyor for the company who imspects the house as to wether air bricks are needed, these will prevent/slow down damp if an issue, also the "eves" of the roof won't be packed so their will be enough ventilation to stop damp their.