My AC wasn't blowing cold so I found a Groupon to have AiRite come out and look at my unit. The tech recommended a new capacitor and since my freon was low that it would need to be refilled, it was possible someone had harvested the freon out of the lines if the house had been sitting for a while or I possibly had a leak. To find the leak would have cost $900 for a dye test and no mention of a pressure test. So instead of assuming the worst the tech refilled with freon and was on his way, $570. A day later all the freon had leaked out. After a week and a half or so I had replaced the capacitors myself and called the tech back out at which point I was told there was a leak since there was no pressure in the lines when checked. The tech then recommended a leak search which took 5 minutes to find visibly and then a pressure test confirmed that air was escaping from the suspected leak source. Another 5 minutes to solder the leak closed and then a pressure test to make sure the leak had sealed and there were no other leaks. Pressure seemed to hold so the tech used a vacuum pump to suck everything out of the line, which incidentally ended up with oil being shot all over the exterior house wall. The tech then refilled with freon and wanted to charge $850 but because the leak search and repair was an easy find and fix I was able to get a discount to $700. I paid close to $1300, the leak issue could have been resolved the first time out had a pressure test been suggested the first time and shooting oil all over the wall? Regardless of whether you can clean it off you are an experienced tech, shouldn't you have known? I don't feel the services were worth $1300. There are more professional alternatives and better pricings else where.