We had Kelly Cleaning out to our house in June to clean our ducts. Although we discussed this for months before we decided to have it done, we are SO happy we did it. Our son has had breathing issues since birth, so we figured any little things we could do to help that out would be well worth the money and effort. They pulled so much debris from our ducts, I couldn't believe. It's a wonder anyone can breath indoors with all that pushing through the ducts when the heat or air comes on. Our sons breathing issues have seemingly improved. We no longer have to give him breathing treatments (which we were doing two to six times a day). Not certain if that's related, but it certainly didn't hurt, especially seeing how much debris they pulled out. We were so pleased, we just had Kelly clean the ducts in our rental home. This home was built in 1928, and you can imagine what they pulled from these ducts. We feel so much better with new tenants (including an infant) moving in next week. We should have never hesitated.