Can't see the point in calling in pest control unless you find that you are overun with the little blighters!
I live in the country, surrounded by fields, so expect to have mice in the house at some point in the winter.
I found that peanut butter or chocolate are best in a trap and continue to set a trap after you think that you have caught them all.
The humane traps really are a waste of money, sorry as unless you take the mouse a decent distance away, they will return and as someone has already said, they may well die in an unknown area to them as knowledge of a food supply is why they come into your house in the first place!
Apart from that, get a cat!