ABOUT DNB clean old and modern ducting heating units and can replace with new systems if required anywhere in Melbourne. Offering a genuine air conditioning and heating service, DNB ensures air duct cleaning is undertaken to the highest standard. For specialist air conditioning repair, air duct cleaning, heating service, air conditioner maintenance, heating repair and air conditioning services look no further than DNB Plumbing & Maintenance. SERVICES Cooling Services Air Conditioner Installation Air Conditioning Service Air Conditioning Repairs Air Duct Cleaning Heating Services Heater Installation Heater Repairs CARBON MONOXIDE TESTING Contact us today for more information.