This is the second time that Shawn Elliot was at my home. The first was for a conversion to natural gas and the second was to install a vented window in my boiler room. He was polite, very professional and explained the job in its entirety on both occasions. He was very neat and removed all garbage. At the end of the job answered all questions to my satisfaction. I highly commend Shawn Elliot. Michael Hiller.