The holes which were cut for low voltage down lighters in a lath an plaster ceiling have become over size and because of the lath and plaster construction it is difficult to mount the units firmly in the ceiling. I had heard rumours of a strengthening system to solve this problem - does anyone know of such a thing or can they give any other advice please?
best thing to do as you have oversized holes, is plaster patch holes back up and re-hole them, the best method of doing this is get some plasterboard and cut into sizes that will enable you to slide through holes and rest on both sides of holes then fill in, you will find it helpfull to either put a screw in to plasterboard or string with knot to hold it in place will filling or you can put it up with board adhesive and leave to set.
Regards and best of luck
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