Hi,
I posted here recently regarding installing an extractor fan on a wall that was inaccesible from the outside. Somebody did reply with the idea of drilling the hole out from the inside using a diamond core drill and inserting a quick fix termination as listed on this page:
2) What is the best idea for the diamond core drill - I know I can hire one but there seem to be some on the likes of Screwfix/Toolstation that can be used with a standard SDS drill - anyone got any experience of these or would hiring one be recommend?
3) As always, any futher tips/ideas/help/advice/money greatly received.Thanks, Richard