Watch out for Jacks of all Trades
Daily I see new people jump into the computer repair business. The first thing I do to see how legit a new business may be is to type their phone number into google.
You would be very surprised at how much info you can get by doing this. I have found computer repair "experts" that also had side businesses hauling trash, offering legal services, fixing cars and a host of other things.
Computers repair is not a part time business. If you don't invest the time to do things right then you'll be out of the business pretty fast. If the company your looking to work with has two, three or more businesses listed under one phone number it's a sure sign that you may need to be calling a different number.