I got the figure from being taught with the big machine that shops use for recharge and vaccum testing which is about 1600 bucks. I just thought of to save you money also try a TECHNICAL SCHOOL because THEY CAN NOT CHARGE FOR LABOR cause they are learning so all you are paying for is the R134A and parts, AND the intructior over looks to make sure they did it right. Try that b4 you call the shop.