How to Select a Qualified Residential Contractor
We guarantee that when we finish cleaning your air duct system there will be no visible dirt in the system and you will be able to turn on your air conditioner or furnace, without having dirt or debris blow out.  To make this guaranty, we must clean every square inch of the duct system from beginnng to end, which includes the air conditioner and furnace.  In Texas, a contractor must have state Air Conditioning and Refrigeration Contractors license in order to clean air duct systems, to international standards established by the Natonal Air Duct Cleaners Association (NADCA).

How to Select a Qualified Commercial Contractor
Southwest  has been cleaning commercial air duct systems for over twenty years. All of our commercial cleaning projects are cleaned to  industry standards (NADCA ACR 2010) All projects are supervised by a NADCA certified 'Air System Cleaning Specialist' (ASCS). A resident of Texas must show proof that the have a state Refrigeration  and Air Conditioning Contractor license in order to be eligable for ASCS certification.