Cavity Wall insulation - cheaper than I thought or am I missing something?

Welsh_Totster · 22 January 2010 at 11:01AM

Thanks folks for the rec's! Im still astonished how cheap it is to do. I dont think we would be eligible for a grant as we both work and are relatively well paid, but that doesnt matter when its only a few hundred quid (or less!) to do anyway.

Im pleasantly suprised and rather chuffed that something I thought was an expensive job comes in at a fraction of the cost we thought!

aah · 22 January 2010 at 6:40PM

I think ours was Miller Pattison. Detached house 4 beds but not large - £149

Kandipandi · 22 January 2010 at 6:45PM

Can I ask, briefly how do they do it? And what level of upheaval and mess is involved?

macman · 22 January 2010 at 7:55PM

Kandipandi wrote: »

Can I ask, briefly how do they do it? And what level of upheaval and mess is involved?

Holes are drilled into the cavity from the exterior, using the mortar joints. The insulation is injected using a blower, and the holes sealed. No internal mess or upheaval at all, just a bit of dust and noise outside from the drilling.
Usually takes a day or half a day depending on the size of the property.

Fire_Fox · 24 January 2010 at 6:32PM

If you have airbricks they need to have a sort of 'tunnel' put through the wall before the cavity wall insulation is done. DO NOT let the contractor block up the air bricks or this may cause damp later down the line.