Do we have to cover all of our furniture before you come out to clean the ducts ? September 29, 2014 No Comments No because the dust is kept down to a minimum. Previous Post Next Post You may also like January 24, 2019 Do you work on weekends? March 31, 2018 Why do I need a detailed cleaning of my HVAC system? September 29, 2014 How do I know if my ducts need cleaning ?