Ductmakers was established in 1996 as a joint venture company to manufacture ductwork for the three largest mechanical buildi ... ng services contractors in Melbourne. AG Coombs Pty Ltd, AE Smith & Son Pty Ltd and D & E Services (Vic). Ductmakers' primary goal is to provide our customers with the timely supply of high quality ductwork and associated products, as they are required and at competitive costs. We understand that sometimes the demands of our customers' projects can change and so we have designed flexibility into our processes to manage these situations and ensure we deliver the required results in a timely manner with minimal delay or disruptions to our customers' schedules. read more