Martin Pentreath wrote:
On 29 Jul, 19:48, benpost wrote:
thought it would be easy to replace a faceplace for a plug
socket....but when taking the old one off, most of the surrounding
paint/plaster has come away. now im left with a sandy/crumbly area
around the back box.

how can i repair this?? the hole now is a lot bigger than the
faceplace. should i get plasterer to do it or can i use filler? will i
need to put pva on the sandy area to seal it ?

Definitely PVA. Bonding plaster is excellent for filling big holes
quickly in one go, and it will hold the metal patress box in place too
without the need for any screws. Then finish off with a thin layer of
filler, or if it's a big area better to use finishing plaster - it's
not as difficult as you think for an area of just a square foot or
two.

Cheers!

Martin
...and if you cant plaster to save your life, use an orbital sander to
get it all nice.