He came with no tools then he asked to borrow a screw driver. He couldn't figure out what was wrong with the boiler and he was just pushing the wires in and out of the box. By chance the furnace kicked off again and he jumped up to ask for $150. He assured that the problem has been fixed 100% and it was due to a lose wire which I didn't believe in first place. The next day, the boiler went dead again. This time, I called another company who told me that the problem was not due to a lose wire. I wasted my money and time with this company.