Paid an Electrician to install Sub-panel.. & Ground wire question

groundingsubpanel

A couple of years ago, I was needing a sub-panel in my garage. While I intended to do it myself, shoulder surgery precluded me from being able so I hired a local, licensed electrician. He did a great job of running PVC conduit up to and across my 2nd-story attic, down along with breezeway to the garage. Just a couple of days ago I looked at the sub panel and noticed the cover plate screws were barely screwed in. So, I took them off to take a peak inside. This is what I sawpanel1.
This is a garage sub-panel, connected to a main where neutrals and ground wires are connected to each other, see pic.
seems like he was in a rush…
Looking at the main, if you look closelt on the left you can see that he put the new ground for this sub in the neutral bar. Not wrong, but the only wire now like that…enter image description here.

So I added a ground bar in the sub, and removed the green ground screw/bar from the neutral bar. Due to the layout, I used a wire nut to connect the grounds from the two cables on the right to 1 ground bar screw terminal on the left. Is that legit (using wire nut to connect 2 grounds into 1)?
thx
enter image description here

Best Answer

Yeah, that's fine. Try not to have ground faults on both circuits at the same time :)

Nice job fixing up that panel. Weird that the person wired it like that.

The breezeway means it is an attached structure and you are OK with not having a disconnect switch/main breaker.