The ductwork in my parents' home was original 1960's and the insulation had come off so we got quotes to replace it. Pete was referred to us by my dad's usual A/C guy who is no longer working due to health issues. Pete came up, the price was fair and we hired him to do the job. Due to the old ductwork leaking water onto he ceiling, a small section of ceiling fall when his helper set a tool bag on it, so he patched it best he could and since the returns, which were underground, were nasty, he offered to clean them and sanitize the entire home including the attic to help kill the mold which you could smell from the old ducts leaking. I am getting ready to ask him about cleaning the ducts in my own home and possibly my rental unit when I saw there were no reviews. (I thought I had already left one when the work was done a year ago but I guess I was wrong) read more