Most DIYers should not attempt plastering but they can patch plaster, even over large areas.

Plaster repair comes ready-mixed in a tub and is easier to apply and smooth out than normal plaster.

If the job is too big for filler, plaster repair is what you need — unless, of course, only replastering will do.

The area you are repairing should be clean, dry and free from loose material.

Gloss surfaces should be sanded to provide a ‘key’ to help the plaster repair adhere, and then wiped clean.

Paint any screw heads and nails with a little oil-based paint and, if you will be plastering over or around wiring, make sure it is insulated.

It is important to stir the plaster repair until it is creamy in texture — mixing in a little water should help it adhere better. A filling knife is probably the easiest way to apply it — use sweeping upward strokes and keep the pressure firm and even.

If the hole is deep, apply only five cm of plaster repair in one go and wait for it to dry before applying the next layer.

Deep repairs take several days to dry properly, so be patient.

Dip your filler knife in water to smooth off the plaster repair as you apply it, to get the finish as good as possible.

You may also find it useful to tidy up the repair with a wet filler knife once the surface has started to go firm, but be careful not to ruin your good work.

If you cannot get the repair perfectly smooth, do not worry because plaster repair sands easily. Most repairs are ready to sand in 24 hours.