We just moved into a house that was recently topped up and the previous owner never bothered to clean any of the building material from the ducts. They were so blocked up that the dust level in the house was ridiculous. We have three dogs, one that is a constant shedder and I honestly could not breathe. We started to wonder whether or not there was something wrong with the hvac installation in the house. So we decided to start with the cleaning of the ducts. we found 416-so-clean on the Homestars site and were so pleased with the quality of the work. Shane was amazing and was so competent, clean and organized that the job we were dreading turned into a great and easy job. The best is that now that the job is done, my house is wonderfully clean!!! The ducts are now unblocked and flowing and the dust level in the house has been reduced so much that I can hardly believe the difference. If you never believed in duct cleaning before, try this company. They are priced right and offer you a great package that includes disinfecting the duct lines with a natural herbal spray. They wear booties on their feet and are amazingly respectful of your walls and furniture. Do not hesitate to use this company. They are the best in their field!!!!