Contact Us

Thank you for your interest in contacting us. If you are an existing client, and have been provided with a username and password, you may use our on-line portal for tracking and managing information about your current project using the automated system. Otherwise, you can contact us by using one of the following methods

Controlled Systems Headquarters

  • Come by our main office (by appointment only please). Our offices are open Monday-Friday 8:00 AM - 4:30 PM. Our offices are located at:

    1758 Firman Dr. Suite 200
    Richardson, TX 75081

  • By Mail, using the above address.
  • Via Telephone at: (972) 234-6767
  • Via Telephone, Toll Free at: (800) 933-4053
  • Via Facsimile at: (972) 234-6760
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Other Contact Telephone Numbers

  • After-Hours Emergency Service and Support: (214) 906-2251
  • After-Hours Sales and Engineering: (972) 535-4698

Other Contact Email Addresses

Emails sent during business hours (Mon-Fri, 8:00 AM to 4:30 PM) are answered typically within 24 hours.

Manuals, Product Information Sheets, Drawings

Because every customer has different requirements for each project, each manual, product information sheet, and drawing set will vary. We have established a general set of product information documents for reference only, available for immediate, 24 hour download via our web site. Additional Product Information Sheets are added ed weekly. If you would like more specific information, or information not listed here on our web site, please email us at, or contact us via telephone during normal business hours (Mon-Fri, 8:00 AM to 4:30 PM). Emails are answered typically within 24 hours.

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