Terracon’s Longmont office was established in 1978 as Empire Laboratories, which became part of Terracon in 1992. We are here to assist with your engineering consulting, testing, and inspection needs. By anticipating project requirements and adapting to challenges, we make it easy for you to work with us. We approach every project – large or small – with your business objectives in mind. This focus results in projects being completed accurately and on schedule.

Our employees are knowledgeable about local environmental policies, regulations and concerns, geologic conditions, and construction materials procedures and codes.

Contact us for your next project.



1831 Lefthand Cir, Ste C Longmont, CO 80501
Phone: (303) 776 3921
Fax: (303) 776 4041