I've never really found an acceptable solution to the annoying gap that
shows above, below or to one side of a socket/switch after plasterboard
wasn't cut just right to line up with the back boxes.

Unfortunately I have a significant number of sockets and switches with
1/4" gap that the face plates don't cover (builders error but probably
better than I could have done)

In the past I've tried everything from grip-fill to attempting to filler
the gap, filler being perhaps the least effective solution.

Anyone got any better ways that won't crack out?

Cheers - Pete

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