Can you provide heater unit servicing for residential ducts? Home » FAQs » Can you provide heater unit servicing for residential ducts? Yes, we have expert team of duct cleaners who work on heater units only. You can avail heater unit servicing for residential ducts from Marks Duct Cleaning Melbourne at an economical price. January 24, 2016 at 10:31 am No Comments Previous Post Next Post You may also like December 5, 2017 Can you provide carbon monoxide testing? January 24, 2016 How to find out duct cleaning is required? January 26, 2016 What is your process for central duct cleaning?