Airwiz was great to work with and I'd recommend them to anyone. I called before making the appointment, and both staff members (Amanda and Giuliano, I think) were polite and answered my questions. They were on time, did the job within 45 minutes, and inspected both the chimney and dryer vent. They found one thing with the chimney that I could do, but weren't pushy about trying to get me to do it. The service tech also helped fix my damper while he did the sweep, which wasn't closing. This will save me a lot of money in heating costs, so thank you!!