They've only ever called me to set up appointments I've requested. So far, I personally am impressed with their business and with the quality of their work.
So why are you looking up the number on here? Satisfied customers don't need to come here, but scammers trying to trick their victims make posts like this all the time on this site. The site must be cutting into your "business" - GOOD!
They call me and I don't even own a house... so no, they don't just call prior customers or people who want to make appointments. No one would be looking up the number if this was a legit business they've dealt with - scammers trying to protect the scam.