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Home Office
118 East Main Street
Edna, TX 77957
800-844-7121
Phone 361-782-7121
Fax 361-782-6852

Galveston Office
PO Box 930
Galveston, TX 77553
7002A Harborside Drive
Galveston, TX 77554
Phone 409-741-8500
Fax 409-741-8501

John D. Mercer & Associates, Inc.
General Firm Information
John D. Mercer and Associates, Inc. is a medium-sized Consulting Engineering Firm started in 1980, with a primary office located at 118 East Main Street in Edna, Texas. The Firm was founded with the intent of providing professional design services to governmental agencies, and communities along the Central Gulf Coast and South Central portions of Texas. For over 30 years, the firm has been successfully completing projects through the use of sound professional judgment, applicable principle of engineering and use of current technology.

In October of 2006, an office was openedĀ  in Galveston to provide services to our clients in the Galveston County area and is located at 7002A Harborside Drive.