• ANSI Accredited
  • Government Industry Data Exchange Program
  • ILAC Mutual Recognition Arrangement
  • ISO 17025
  •  National Environmental Balancing Bureau
  • Sheet Metal and Air Conditioning Contractors' National Association

Welcome to Huston-DePue Calibration Laboratories (HDCL), an A2LA accredited metrology company. Since 1960 we have met the calibration needs of a multitude of companies and industries world wide. Whether delivering equipment to our facility, shipping instruments to us for calibration, or scheduling on-site service, you can always count on HDCL to deliver timely, quality service.

We've Moved!

Visit us at our new location!


July 23, 2023

HDCL Holiday Schedule

HDCL will be CLOSED the following days:

Thanksgiving Day – Thursday, November 24, 2022
Black Friday – Friday, November 25, 2022
Christmas Day (Observed) – Friday, December 23, 2022
Boxing Day – Monday, December 26, 2022
New Year's Day (Observed) – Monday, January 2, 2023


November 15, 2022