I took half a day off work, and they never showed up, never returned my call.

I can't really comment on their work, because they never gave me an estimate, even after several requests. It took them 2 weeks to return my phone call. Finally called back and scheduled the estimate. On the day of the appointment, an hour late, they called to reschedule. Came on rescheduled date, late, I might add. Guys looked at chimney and then said they would email me the estimate. What?? Anyway, I never got it. My parents had the same experience of phone calls not being returned. Way to be professional guys. I don't care if you're busy or what not. Return phone calls and provide the service you advertise.