We used them for duct cleaning immediately after we moved into the new house. Were super responsive on quoting, job scheduling and the actual job was fantastic. Were courteous and cleaned up behind them. Showed us the pictures and the stuff the previous owners "left behind". They showed us where we had overcounted vents and explained those were exhaust fans. Did not do those and did not charge us for those.
I thought they missed the dryer vent, and called them. They sent someone to take a look and explained clearly that they cannot do vents not at ground level. Even explained how I should do it.
We could not be happier with a service provider. Thank you guys!