Can a builder who is not Fensa registered legally install a new window (i.e. not replacing an old, but creating a new opening) on a job which involves building regulations? Would the BCO sign off the window as part of the works? If the latter, is there an additional charge over and above the initial building regulation fee?
Or does the builder/installer still need to be Fensa registered?
Or does the builder/installer still need to be Fensa registered?