Visitors the day after Isolation ends? What to do!

[Chocolateporridge]

My DD is in self-isolation in her bedroom as she has Covid but my DH, DS and myself don't have it.
We live in Scotland and months ago we made plans with relatives from England who we rarely ever see, that they would come for dinner and take my DD on holiday with them for 2 nights. As it happens this has turned out to be the day after my DD's self isolation ends, and I don't know if this is just too close for comfort? I can't find any guidance on it. Their 2 DD's are teens and unvaccinated and they would want to go to my DD's room while they're here but I don't know when it's safe for me to go in and clean it? Also packing clothes and belongings for her to take with her that have been in her room all through isolation, is that safe?
Am I overthinking this, or can anyone point me in the direction of some guidance?

Firstly, I hope your DD is an adult and not a young child that you have shut away in her bedroom.

Secondly, presuming DD is a young adult she is surely capable of cleaning her own room (although I think you're being a bit OTT here about the cleaning)

Thirdly, hiding from covid is pointless. Presuming your family are happy with the chance they could catch it, I'd let them get on with it.