Question regarding notice of entry

[Alyssa Lebetsamer]

Quick question:

At a tenant's request, I am bringing a contractor out to examine some issues with the tenant's balcony. We need to enter through the tenant's apartment. I texted the tenant the date and time I was planning on coming to let them know - they responded that they would be home to let us in and discuss problems, and that the timing works reasonably well for them. I have a record of this discussion as it happened via text. Do I need to post a written notice on their door to reiterate that I am coming ? Or is the agreed upon time and date via texting good enough?

Thanks in advance for any input!