Contact Us

View of HECS office from street

Location

Our headquarters is located two miles from downtown Houston and is
open Monday through Friday from 8:30 a.m. to 5:30 p.m. CST.

Address: 402 Teetshorn Street, Houston, TX 77009
Phone: 713.868.1043
Fax: 713.863.7944
Email: leslie@hollawayenv.com

Call us at: 713-868-1043

IN THE WORDS OF OUR CLIENTS

I appreciate the professionalism each of you brings to the table.

Greg Phipps, P.E. | J.A. Costanza & Associates

IN THE WORDS OF OUR CLIENTS

This firm has demonstrated professional and efficient management of projects, exhibited timely completion of projects as scheduled and budgeted, and exhibited knowledge and experience working with state and federal agencies.

Yu-Chu Su, PhD, P.E. | Lockwood, Andrews & Newnam

IN THE WORDS OF OUR CLIENTS

They are experts in overseeing the production of quality, biologically and technically sufficient documents and reports.

Dwayne Rogers | Harris County Engineering Department

IN THE WORDS OF OUR CLIENTS

Your team were amazing partners in planning and execution of our event.  This was the best event that I have ever been part of.

Auggie Campbell | West Houston Association