• 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.

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

15th Street is open again!

We are pleased to announce that the construction is finished at the railroad crossing on 15th Street!

You can once again get to our Calibration Lab from Broadway Extension without detouring to 2nd Street or 33rd Street. 

Please contact us if you have any questions. Click below for a link to google maps.



August 24, 2021