We've just fitted a new upvc door to an old house and it's required us to
remove some of the old skylight frame and adjust the sides of the door frame
to bring the look into line with the door. Is it possible to buy upvc strips
to put on over these adjustments, to tie in the look of the door? Or failing
that, if we got the white plastic stuff that you sue to cover up pipework
etc internally, will it withstand external conditions without changing
colour or going brittle etc?