NEVER use DUCTMASTER INC for you air duct cleaning needs. They put a coupan out for 45 dollars the guy comes in and quotes 200 dollars (saying you have more main ducts) and the service is really really poor. He had a very small vacuum that hardly does any good.. Please do not use DUCTMASTER INC. On the contract there is no address listed as well. Thanks! Yusuf. read full review »