Have them cleaned multiple homes many times already, for both air and dryer ducts. Overall happy with their services, as they are responsive, responsible, great value, and strive to offer excellent services. If things go wrong, they call to follow up to ensure things can make right.
I can for sure hope nothing goes wrong, but we are all human and no one is perfect. Sometimes the attitude of a company speaks volume and I see that 1CleanAir certainly has the right attitude in serving their customers.
Attached are after and before photos of an air duct cleaned just this winter.