Hi,
I've just stripped the lining paper in our hallway as we intend to paint straight onto the plaster. In doing so, I've uncovered when a job has previously been done to move or block up a doorway.
At the top of the old door, there is an untidy join with the original plaster. I don't know much about decorating & plaster but my guess is that this is the plaster board that was then plastered over. What the best way to cut that back to be level with the rest of the wall? The old lining paper was hiding this but I want to make this as tidy as job as possible.
https://goo.gl/photos/oy1x4bsLCYRsKwz99
The damp patches you see are from the steaming, nothing else.
Any advice appreciated.
DC