I have served my tenant a section 21 notice which ends 12 Feb 22.This included Current EPC, latest gas cert and rent guide.
In order for the Section 21 to be valid, you need to provide those documents
before you serve the notice. Just putting them in the same envelope won't do it.
I gave her 24 hours notice that I would call at the house (yesterday) and she refused to open the door to me, she doesn't reply to my messages either. I have messaged her today to say I want access to my house this coming weekend and I would give her 24 hours notice again before turning up.
Unless you've got some pressing need to access the property for essential maintenance, I'd steer clear of this sort of thing. It's her home and she has a common law right to quiet enjoyment. She doesn't have to let you in and if you persist, it's going to look like harassment.
It's very likely that if your tenant has contacted the council's housing department, they'll have told her to sit tight for as long as possible (i.e. until the bailiffs turn up). You need to be prepared for a long process and make sure you do everything by the book. If there's a flaw in your Section 21, don't expect your tenant or the council to point it out on day one: they'll wait until the day you apply for possession so you're two months gone and still at square one.