1) what is the best way to repair ceiling cracks?
2) is there any electric sander(with dust catcher bag) available to help with the sanding?
Solved! See most helpful response
Welcome to the Workshop community @AlexWong. We hope that our community members can be a great source of helpful information and inspiration for all your projects, including this one.
As @BIM_Engineer said in his reply, it would be helpful if you got back to us and provided more information about your house and some photos if possible.
The Bunnings D.I.Y. advice about How to repair cracks in plaster might also be of assistance as a starting point. I have attached the video below.
Thanks again for your post, we look forward to hearing from you again soon with some more information about this projects and others you might have planned.