Can we have access the day before our wedding?

You certainly can.  Your hire is over three days so you can set up the day before.  Access is from 1pm and we do ask that you limit your set up team to 6, not including suppliers.  We have a lot to do that day and too many people tend to turn the afternoon into a garden party making our preparation work really difficult.  The day after you have access until midday to collect bits and pieces - and bottles etc if you're clearing it yourself - and for people to pick up cars left overnight.