"Control Systems 21 has been part of our team for almost ten years. Their knowledge and experience continue to be exemplary. They quickly make needed repairs at a very reasonable cost. And they have never attempted to talk us into something we did not need or an expensive model when generic would do.”
- Joe C. Barrington,Chief, Carroll County MD Bureau of Utilities

"I don’t worry about my calibration and certification anymore. Control Systems is on it, which means I don’t have to be.”
- John Rodeheaver, Maintenance Manager, Hanover Foods Inc.

"Nobody is more responsive than Control Systems 21. Nobody.” - Bo Sterling, General Manager, Bituminous Paving Materials, Inc.

"Pretty much anything I need
help with, I call them first. Because chances are, no matter what it is, they’ll fix it.”
- John Baughman, Waste Water Treatment/Landfill Supervisor, IESI PA. Corp.

"CS21 has been providing prompt, efficient instrument services to my plant since 1981."

- Steve Douglas, General Manager, City of York Waste Water Treatment Plant

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