top of page

About us

GVA Engineering L.L.C. is a mechanical and electrical engineering firm that provides design and construction administration services for commercial, institutional, and governmental facilities in Louisiana, Mississippi, and surrounding states. Leon R. Pesses and David C. Code established GVA Engineering in May 1995.


Both Mr. Pesses and Mr. Code had served as department heads at Guillot-Vogt Associates prior to the organization of GVA Engineering. With its roots in the decades-old company of Guillot-Vogt Associates, GVA Engineering has experience and access to resources beyond its years.


Principals Mr. Code and Mr. Pesses are actively involved in the design and review of all projects. With over 60 years combined experience, these men can truly be called experts in their field. They, along with their team, aim to bring flawless design to all clients. GVA Engineering has a staff of profressional engineers, designers, LEED Accredited Professionals, drafters, and supporting staff. The Principal-In-Charge continuously oversees project schedules, providing additional staff and resources when necessary. Internal reviews of all work are conducted prior to submittal. Design is reviewed for technical accuracy, constructability, cost, and conformance with client goals.


GVA Engineering’s primary strength is its ability to work on a large range of projects: the company provides professional mechanical and electrical services on both large and small jobs in nearly every type of commercial building.  Our engineers have worked on various types of projects from computer centers in private office buildings to university dormitories, to hospitals that serve entire towns and everything in between. These projects include new construction, renovations, additions, and updates of all kinds. This immense diversity of experience allows GVA Engineering to develop innovative design solutions to specialized projects. The firm has completed several LEED certified projects, meeting the latest standards in energy efficiency.

bottom of page