Hello!
I need some advice regarding a wall in my apartment in a building from the late 1800s. By the front door, a large piece of the brick wall facing the stairwell has been removed at some point. This was done to install pipes and push buttons for electricity/lighting.
I am now going to rewire all the electricity and need to repair this damage. The hole itself is about 20x10 cm and at its deepest around 8-10 cm. How can I fill this in? And how can I create a nice surface to paint on?
