According to experts, you should get your ducts cleaned every 2-3 years. However, it all depends on individual requirements. Sometimes you might require frequent duct cleaning if there is any mould grown in your duct or if your family members suffer from allergies. Additionally, in case if you did a renovation of your house there are high chances that the air ducts would be coated with dirt and dust and you might need to change the air filter. You can get in touch with our Melbourne Duct Cleaning professionals and know if you need a duct cleaning or not. Our experts will give you more honest advice and recommendations. Call us to know more about it.