There are different solutions depending on the size of the hole in the wall - small holes can be patched with painter's putty, while medium sized holes require a drywall metal patch and larger holes require patches made of drywall.
We noticed a couple of stains in the corner of our dining room ceiling. Enkel, the serviceman sent by Mr. Handyman, quickly got to the cause of the problem and fixed it. The insulation in our attic had shifted, probably...