I'm not sure that Joan Littlewood ever directed Close THe Coalhouse door.. I'd be interested if and when this happened.

Close the Coalhouse Door was written by Alan Plater( from stories by Sid Chaplin) with songs by Alex Glasgow

Here's a link to a BBC recording of it, if anyone would like to listen.
Not my digitisation so thanks to original digitiser

http://www.mediafire.com/file/pot9b9i41nb32vu/BBC_R4_-_Close_The_Coalhouse_Door-.mp3/file

Maybe someone could do a blue clicky for the link - Im useless at it