JJA

JJA is dedicated to servicing our clients with integrity and responsiveness, while providing a collaborative TEAM solution... JJA, Inc. is a leading Mechanical and Electrical Engineering Consulting firm established in 1978 in Dallas, Texas providing engineering design of HVAC, Plumbing Fire Suppression, Electrical Distribution and Critical Power Systems, Lighting systems, Life Safety systems, Sustainable Designs, Energy Modeling and MEP System Commissioning.

Also known as: James Johnston & Associates Inc., JJA, Inc.

Primary location: Dallas United States