Can someone tell me the regulations concerning new windows/doors. I wish to install a new set of french doors & a window in an old utility room. i have got them both at a v.cheap price & intend to fit them myself to save £100's, both are compliant with current regs. I have been told that they need to be inspected prior & after installation, is this true? I have already fitted two doors & another window previously, will this affect the sale of my house if they have not been inspected or installed by a fensa contractor? thanks.