Very rare to receive a return call. Gave up on them b/c they simply didn't return my calls. Was told duct cleaning included a 'brushing" of the vents but they used one that I felt was not the same as I was told would be used. I think that it's possible that ducts became disconnected from the work. I repeatedly asked them to put the camera down to see if this was the case but they didn't respond positively. Did some gas line work that was done well but had to pay extra b/c of a 'misquote' on the materials. Nice and friendly though and Mike put in a 'cup' to help direct heat up a vent (that didn't make a difference) charging minimal amount.