Glasgow Airport - Taxi/Van Pickup

We will be arriving on Monday morning at Glasgow International Airport with our luggage and 6 boxes....does anyone have a suggestion of a taxi/van service that we could call and hire in advance that can transport our stuff to west end glasgow?

I know there is a taxi line outside the airport, but a regular sized taxi isn't going to be very feasible with all these boxes. Some kind of van service seems like it would the better option. Any suggestions would be much appreciated!