Repair crumbling concreate around single glazed window frame All manner of questions and solutions to problems and issues surrounding the subject of brickwork, blockwork and stonework

[Cubba27]

I'm looking for some advice on how to repair crumbling concreate around the frame of a single glazed window. My aim is to stabilise the area to allow for a new UPVC window to be installed making the outhouse water tight so I can fit it with utilities. The outhouse is brick built with a flat roof made from concreate and rebar. Is this possible or will more structural repairs need to be undertaken?

Cheers

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