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Ha, not really interested in doing it myself - but what would you be using expanding foam for? Surely it's a plastering job?
owl-
Might save a few hundred quid?
I just filled some old spotlights holes and the way I did it was...Baton out across the hole.
Attach plaster board to baton to fill hole as close as possible (not very)
Use expanding foam to fill gaps to large for plaster
Allow to dry.
Cut off excess.
Sand.
Plaster.
Sand.
Plaster.
Sand.But then again, I don't really know what I'm doing so...
chrisbmx116
Could be a can or worms that, but also doable yourself.... couple of batons, bit of wood, expanding foam...