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 January 20, 2016 Do you sell the duct vent, covers or grilles for the duct outlets? September 29, 2016 NADCA’s consumer guide to Duct Cleaning January 23, 2016 How do I need to make the payment?