Cavity wall insulation

Admiral Huddy

Admiral Huddy

Admiral Huddy

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Chelmsford
I was wondering if any of you have had cavity wall insulation installed to their properties after build. It's something I've been thinking of for sometime on my 4 bed detached house, built in 1968 without insulation. This was until i saw the One Show a month or so back explaining that not all properties can have it installed and can be problematic so put me off a bit.

Yesterday, a Representative from Miller Patterson (link below) came door--to-door as he was scouting the area. He ran a quick survey and informed us that the insulation would only cost £149 as the rest is funded by the government, for a limited period.

I get a little sceptical about these sort of things would appreciate any experiences you may have had or advice.

Thanks


Miller Patterson Website
 
Full cavity insulating a house isn't that expensive, so i would be surprised if it cost much mroe that £150 anyway (maybe double at a push). I had a look at some of the governement funding grants (which this may be where you pay and reclaim) but there are for the elderly and those on low incomes; I didn't qualify for anything.

The British Gas website and the Carbon Trust will both give you lists of acredited insulators in your area if you want to use a different one.

Unfortunately, since my house is pre-1933 it doesn't have a cavity. :(
 
We have had it done (last year). No noticeable difference, but then when the roof extension went on in the 90's the builders put no insulation in the parts of the roof they blocked off!

Be prepared for you house to look like the army have taken practice shots at it. We are rendered so it was easy to hide the holes.

Also some of the house has had new bits added here and there, so the guy drilling had trouble finding the cavity in some places. We looked like we had been machine gunned!

Still for the price it was, it was worth a punt.
 
Had our 1940's house done a couple of years ago and to be honest....well chuffed.
Even with the temperatures dipping lower in the last 2 years during winter our gas bill has been significantly reduced compared to the year previous to having the insulation done.
We did ours through the grant scheme and it cost us £135....and the insulation company sorted out the grant too.
 
FatBoyObese said:
Had our 1940's house done a couple of years ago and to be honest....well chuffed.
Even with the temperatures dipping lower in the last 2 years during winter our gas bill has been significantly reduced compared to the year previous to having the insulation done.
We did ours through the grant scheme and it cost us £135....and the insulation company sorted out the grant too.
Click to expand...

What company did this?
 
We had our house done a few years back and it made a big difference.

If you haven't got the loft insulated it's well worth getting that done as well (or I think B&Q keep doing the insulation very cheap per roll* to do it yourself), the combination of the two made a huge difference (for example we used to have to put the heating on a boost overnight even in mild winters, now it's only on the coldest days).
 
I had mine done last year (3 bed semi) and also had the loft done by the same company at the same time. Only cost me £160 with full guarantee etc.
 
Look into your utility providers, and British Gas. There are loads of subsidised insulation things you can do.

I guess the common worry is that by filling the cavity you could potentially get prolonged driving rain to breach the cavity and cause damp on the inner leaf but it must be fairly uncommon otherwise no one would do it.

The cavity wall was introduced into buildings because it is the greatest of all damp precautions, water cannot travel across a void. Most masonry is porous to some degree, and sooner or later, especially with weak, or incorrectly constructed joints, that masonry will let in water. Without a barrier of some kind, there is a chance that water will work its way indoors, however thick the wall. By inserting a cavity, that scenario is impossible.
Click to expand...

Have a look there for some grants that might be available

http://www.government-grants.co.uk/?gclid=CMutn8yDz6ACFcOT3wodaEMK0Q
 
Quote:
The cavity wall was introduced into buildings because it is the greatest of all damp precautions, water cannot travel across a void. Most masonry is porous to some degree, and sooner or later, especially with weak, or incorrectly constructed joints, that masonry will let in water. Without a barrier of some kind, there is a chance that water will work its way indoors, however thick the wall. By inserting a cavity, that scenario is impossible.
Click to expand...

It is this reason that worries me most.
 
Miller Patterson did ours about eight years ago. Well worth it, made a huge difference to internal temperatures. Our house is 1920's brick built. No problems with damp. Hth.
 
We had ours done about two years ago, it's a 1992 largeish 4 bed detatched and we paid 220 or there abouts I feel ripped off compared to the price you guys paid.
we did ours through british gas it has made a differance to the inside temps of the house mostly in the back bedrooms where there is no sun on the outside walls during the winter.


bullit
 
We can't have our place done, prefabbed concrete is fine, but the cavity is a poxy 2" (if that) and that's small enough for moisture to jump if there is anything filling cavity :(
 
Had mine done last summer and it has made a diference. To be honest it was only in hindsight that I noticed that the fuel bills are lower and that it wasn't as cold this winter. The main benefit for me was that, prior to CWI, we used to get damp walls in the kitchen and bathroom as vapour tended to condense on the cold walls (even in summer). This no longer an issue (also helped by extra extractor fans).
 
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