G&W Engineering Acquires Mid America Testing Laboratory (MATL)

FOR IMMEDIATE RELEASE (April 1, 2025)

G&W Engineering Corporation Acquires Mid America Testing Laboratory (MATL)

G&W Engineering announces growth with the acquisition of Mid America Testing Lab

Maryland Heights, MO – G&W Engineering Corporation is excited to announce the acquisition of Mid America Testing Laboratory (MATL), a leading full-service laboratory specializing in fenestration and enclosure testing. With this acquisition, G&W Engineering strengthens its Building Enclosure Services Team, expanding its capabilities to better serve industry clients.

MATL, founded in 1942, has long been recognized for its expertise in testing pre-construction mock-ups and is fully accredited by AAMA, ASTM, NWWDA, and NAFS. The integration of MATL into G&W’s operations enhances the firm’s ability to provide comprehensive whole building and enclosure assessments, investigations, and problem-solving solutions.

As part of this acquisition, MATL’s owner, Rick Heitmann, will be joining G&W Engineering, bringing over 40 years of experience in enclosure consulting and testing. Experienced MATL field technicians with a combined 40+ years of expertise in field testing will also be joining the team. Their experience includes significant projects such as Indiana University Medical Center in Indianapolis, Washington University in St. Louis, and the Veteran’s Home in Quincy, IL.

To support this expansion, G&W Engineering has established a new testing laboratory at its headquarters in Maryland Heights, MO. This facility will not only accommodate fenestration and enclosure testing but also broaden its scope to include advanced testing, investigations, and experimental services beyond enclosure performance.

“For over 33 years, G&W Engineering has been dedicated to delivering expert consulting services in MEPFP, Civil, and Structural Engineering, Commissioning, and Building Enclosure services,” said Kevin Griesemer, President of G&W Engineering. “Bringing MATL into our operations aligns with our mission to continually enhance our services and provide the highest level of technical expertise to our clients.”

This acquisition reinforces G&W Engineering’s commitment to innovation and excellence in the consulting engineering industry, ensuring that clients receive top-tier service in whole building and enclosure performance through forensic evaluation.

For more information about G&W Engineering and its expanded Building Enclosure Services, please visit www.gandwengineering.com or contact Kevin Griesemer at kgriesemer@gandwengineering.com / 314-737-4223 or Joe Dressler at jdressler@gandwengineering.com / 618-806-3403.