On Oct 5, 9:19*pm, S R wrote:
My house is a semi built in 1873, from Yorkshire stone.

It is a devil of a job heating it and keeping the heat in.

I'm getting the existing poor quality double glazing replaced next summer, but I
am also considering cavity wall insulation.

replacing dg is unlikely to yield any useful result unless its so
broken its howling.


I'm not sure how effective CWI is in house such as mine, and also the effect it
has on resisting or promoting damp penetration.

You need to find out what construction your walls are. Dont assume
theyre all the same, old houses can have several different wall types.
Measure the wall thickness, and drill a little test hole to see if
there's a cavity in there, and if so of what depth. Also let us know
fi the stone's rough rubble or sawn blocks.

If there's no cavity there are other options.


NT