Nailor Industries, Inc., operating under Nailor International Group is a privately held, family owned company with Group headquarters located in Houston, TX. The Group consists of several business units: Nailor Industries, Inc. (Air Control & Air Distribution products, VAV Terminal Units, Green Products, Electric Duct Heaters), Engineered Comfort (Fan Coil Units), Thermal Corporation (Custom Air Handlers, Blower Coils), Klean Aire (Filter Housings), Nailor GTA, Advanced Air (UK), Engineered Acoustics (Duct Silencers), and Manufactured Air Products [MAP] (Air Control & Distribution products).