A kit that includes everything you need to repair loose plaster costs a lot less than how much it would cost to remove that much plaster, haul it away, then hang and tape the wall or ceiling. FAQs

This type of foam can also be injected using specialised equipment, this being a foam injection machine which is widely used by professionals. DIYers doing home repairs could certainly make do with PU foam cans, however.Now add another layer of filler to cover the tape and smooth out with your putty knife and leave to dry as instructed. Once dry, sand down the filler until it is flat and blends in with the surrounding surface.

Peter and Noelle operate Peter Lord Plaster & Paint, Inc. specializing in the preservation and restoration of historic surfaces, and all plaster systems. www.plasterlord.com

How to fix cracks in plaster

This is a step many skip but we consider it to be an important one. Run your hand along the cured compound that you’ve sanded. You should feel no bumps or deformities. Other than the texture, the compound should feel just as flat as the wall surrounding it.