This is a 4" ac ceiling diffuser, drywall guy did a sloppy job, is there some kind of product I can easily install between the diffuser and the ceiling to cover up the hole instead of patching the drywall?
Bump
Yes, it is a furnace. A tech I called down told me the issue is the control board got water damaged, wanted $600 to replace. I can also see some water damage on the board itself.
I would patch it as it is a simple fix.
Patch how? I have a gap do I just fill it up with plaster? else I need to cut a huge piece of the drywall
You can use drywall compound but depending how Bbg the space is you should use some type of mesh for strength.
You can use 'tape' like you put over seams between drywall.
The side next to the pipe will have zero support
How did it get water damaged? Condensation from not changing the filter?