external wall

Hi, I want a small extension to accommodate a 2x1m bathroom (internal area) and a 1.5x1m service area. I'd like an external brickwork, in terms of appearance, to blend with the rest of the house (cavity wall from 1970). What is the U-value requirement for the new external walls, please? Am I...

Hi guys, Would really appreciate some views on this, photos attached but can take more if helpful. We moved into a ground floor maisonette in a Victorian terraced property last year. There were some damp issues in the north-facing front room (some visible damp patches) and our survey...

Hi Guys, The property in the photo illustrates a plaster-rendered wall with damp appearing to be rising up it. It was plastered about a year or two ago. Initially, I thought it was possibly just the plaster drying out but quite recently it has now started to show some salts in one place, which...

Hi, In need of a bit of advice or guidance regarding the possible need for damp proofing to an existing external wall that now becomes an internal wall after an extension. I plan to keep it as exposed brickwork as attached visual. The problem (or maybe it's not a problem) I have is the new...

Previous owner has used a very thick layer of paint on external pebbledash render. Over time, the paint has lifted away from the wall and in most areas a simple prod can crack the paint. I’ve started to use a wire brush and gentle tapping to crack and remove the majority of the paint. However...

Hi, I bought Reolink security cameras which I would like to fix outside my house. I everything will be straight forward, I will get the cable through the wall, and it's done. However, when my cameras arrived, I noticed that end of the cable is 20mm thick where ethernet cable connects. If I...

I’m creating an opening (Proposed 1700mm wide) in my rear external ex solid wall (it has been rebuilt using cavity with a width to match existing, 230mm, just in ground floor and half length of the wall). There is a small window and a 900mm door in that wall panel I want the opening in for the...

Hello, I want to stop suspected rain water entering through the exterior wall of my house, and causing damp in a downstairs room. The house is an edwardian house [1920s build, single brick wall, lime plaster. outside rendering looks about 1970s.] --- The room is downstairs with one exterior...