Our cap was blown off a vent on the roof on a windy winter night and I had no idea who would even fix something like that. Six HVAC companies said they wouldn't do it and a roofer said the same. Finally I got 2nd Generation's name and called and a day later they came out. Matthias fully and easily explained what he'd have to do and did it well and efficiently and gave us great peace of mind that the problem was taken care of.