What do I do if my broadband engineer hasn't arrived?

There are a few things that could have happened here. Let's take a look.

Sometimes the engineer won't actually need to come into your house or speak to you at all.
There's no way for us or the engineer to know whether they'll need access ahead of time, but they might be able to activate your broadband from the cabinet near your home.
If your appointment window has past, try plugging in your router. If it doesn't work at this point then get in touch via LiveChat, email or give us a call
In the rare event that something has gone wrong, the team can book you a new appointment.
All Virgin Media services are quick start, so you can just plug in your router and follow the instructions included in the box. 
If for some reason you did need a Virgin Media engineer, we'd let you know specifically. If they didn't turn up you'd just need to get in touch via LiveChat, email or give us a call