It depends on the size and severity of the crack or hole. A tiny patch can take as little as 10 minutes, while a more extensive repair could take an hour or more. If you have a plaster emergency and need it fixed right away, most professional handymen can do a quick repair in just a few minutes. Just be sure to ask for a quote before starting any work, so you know what to expect financially.

It can take anywhere from a few hours to a few days, depending on the size and severity of the crack or hole.