I am impressed with Sierra Air. I have received service twice from their company. I appreciate the care they take in your home--wearing shoe covers and placing a drop cloth on the flooring before setting their ladder down. (And they bring their own ladder! I've actually had an HVAC technician ask to borrow one. )
Tim D was extremely polite and professional. He was patient in taking the time to discover the problem I had called about. 'Cause wouldn't you know, the sounds I had been hearing weren't happening when he got there. He really took the time to figure out what might be causing the concern I had. I'm glad he didn't give up because he finally got to hear what I had been talking about. He had assured me that the problem we were having would be resolved that day.
He also addressed another smaller concern. And he gave me tips on setting my thermostats and the types of filters I should use.
Give Tim a bonus! :)