How do I fix broken corners on a masonry wall?
Hello @OwenO
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about fixing your masonry wall.
I suggest having a quick look at this guide - How to repair a rendered wall by @Nailbag. The general steps are to clean the damaged area of dust and debris before patching the damaged section. The main repair material is the Polyfilla 500g Exterior Brick and Render Masonry. However, if the corner damage is larger, I propose using Dingo 10kg Mortar Mix.
If you have any other questions we can help with, please let us know.
Eric
