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Excellence, Quality and Unbeatable Pricing
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AB Controls can service all your DMS installations & maintenance needs! Don't spend a fortune replacing your DMS systems. Contact Us TODAY! 


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Your ONE STOP SHOP for ALL controller brands!  




 About AB Controls, LLC

   AB Controls is a controls business dedicated to serving users of the Robertshaw, Barber Colman, Siebe and Invensys systems. We have been working with these systems in the Carolinas since 1989 and have recently opened our operations from coast to coast.

   Since Y2k, Allen Berg, owner and founder of AB Controls, has been servicing, repairing, installing and training owners how to use their HVAC and DMS systems efficiently and effectively. We provide Robertshaw, Siebe, Invensys and Barber Colman system automation HVAC parts and service needs for the ultimate in resources and service.

   AB Controls is now providing both new and the "hard to find" and even obsolete used automation system controllers and devices such as sensors, transmitters, transducers, and the antique controllers that have been serving you well. We hope you will appreciate the great prices we are able to pass on to you.

Mission Statement

   Our mission is to provide the highest quality service at the lowest possible prices. We will not compromise.



AB Controls USA. * Copyright 2001 AB Controls USA.  *  All rights reserved.  *  Revised: 09/16/15.