Hi Webb10,
Thanks for your post and welcome to the forums. It's great having you on board with us in the Community.
When you have an install booked, you will get a pre-install visit which is scheduled at the same time. This we try to complete as far in advance as possible but the latest it will be done is the day before your install. During this time, it will be a floating appointment and will show each day until completed.
The main appointment you need to keep an eye on is your installation one. If there are any issues with the installation, this will be communicated to you and the appointment will be changed.
If you have any further issues, pop back and let us know.
Thanks,