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Excellence, Quality and Unbeatable Pricing
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Payment can be made by check (Net 30) or Credit card


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!  





 Order Policies


To Order:

AB Controls has a huge rotating inventory of both new and reconditioned Siebe, Invensys, Robertshaw and Barber Colman parts. Simply email us with your order at Parts Order. A representative will contact you to verify your order and form of payment within 24 hours.

Parts Request:

Don't see the HVAC part you need? Request it here! We can usually process your request within 48 hours. If we cannot locate it, you will be placed on a list and notified when we do locate it via your preferred contact method. Email us at Parts Request.

Service Request:

Is your HVAC system in need of service or maintenance? We can help! Email us of your situation, desires and concerns and we will evaluate and give you our recommendation for a solution including time frame, pricing and estimated date of completion. Email your request to Service Request.


Please verify your order. Prices seen on the website may change without notice.

Payment Terms:

Payment can be made by check, money order, MasterCard, Visa or Amex. Payment must be received no later than 30 days from date of order unless other arrangements are made.

Return Policy:

All parts carry a 1 year warranty for 1 year and sales are generally understood to be final. Authorization must be obtained prior to a return and a suitable warranty replacement will be sent.



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