I used Cham's Electrical Services - guy is really great. I would definitely recommend him. I got a 14-50 outlet - the installation fee would have been around $350 if I put it right next to the box, but I wanted to park my car in another spot - so he added 300 for a 30 ft extension to another parking spot - so I paid $650, but yours could be a lot cheaper depending on your garage set up. P.S. I live in the woodlands - he's from Sugarland but does a lot of work in the Woodlands.