Really bad. had him come out to fix a leak on our oil burner and perform annual cleaning. He did so by completely taking the burner apart. Worked maybe 5.5 hours? He drained oil into one of our coolers, like a coleman cooler you'd use at a cookout, and left the oil filled cooler in the middle of the floor after he was done.
A few weeks later the leak was back we called someone else to fix it and had a much better experience and spent less money.
A few months later our hot water cut out. I assumed it was b/c we needed oil but the oil gauge said we had 1/4 tank left. We used another company this time When they arrived they said that the problem was that whoever was working on this (Cassidy) installed the mixing valve backwards. Intentional? They fixed the leak, installed a mixing valve, cleaned the machine, didn't drain oil into our stuff, cleaned up the area after they were done working and charged waaaaaaaaaaaaaay less than this guy. read more