Doctor in the House: External wall insulation Our DIY expert David Snell answers your questions on all things building and safety related By David Snell 11 April 2011 • 12:00pm ...

Fitting A-rated double glazing to the average semi-detached house costs around £7,500. Loft insulation - £640 a year saved. Someone living in a semi-detached house with no roof insulation could ...

How much does cavity-wall insulation cost? We've worked with the Royal Institution of Chartered Surveyors* (RICS), which publishes average building work and repair costs, to bring you the average cost ...

I live in a traditional semi-detached house. When it was built it had a space to build a garage. My neighbour and I built garages with a kitchen extension sharing the party wall.

"Green slimy" marks which have appeared on the outsides of homes fitted with external wall insulation are being investigated. ... "Next door has black marks on the front of the house.

Serious and systemic problems have been found in homes insulated under government schemes, according to the Minister for Energy Consumers. An audit of homes that have had external wall insulation ...

The cost of cavity wall insulation is around £475 in a semi-detached house, although some energy providers will install it for free. With Eon and Npower, for example, anyone can apply as long as ...