Lightly sand down and varnish front wooden door

I have a nice wooden front door which I've recently had retrofitted with double glazing. In doing so new beads had to be installed one the door around the panes of glass. These aren't varnished, hence aren't protected from the elements. I would like the whole door taken off and sanded down (if need be) as there are a few scratches from previous owners pet's and varnished to protect it from intense sunshine and rain. I would like a rough quote first.