Maybe.
Brand new homes are covered by a 12-month new construction warranty. The scope of these warranties diminish over time, but during the first 12-months they cover nearly every item in the home.
If the home is only 6 months old, I’d tell your friends to compile a list and give it straight to the builder.
The builder will coordinate with the sub-contractor who’s responsible and arrange a visit to fix the problems.
But try to be home during that time.
Some builders will say it’s not necessary, but it protects you:
1. You can verify the sub-contractor actually showed up and when
2. You can make sure nothing else gets damaged in the process.
3. You can make sure the work gets done right
I once had broken floor tiles in my bathroom. I wasn’t home to open the door when the sub-contractor came so he left the materials on my front porch and left.
Don’t let this happen to you.