Architecture Engineering

Leadership in Arizona Architecture & Engineering

At GLHN, we believe our success comes from helping others succeed. Since 1963, we’ve been delivering a full range of innovative, integrated design solutions to clients throughout Arizona and beyond. We thrive on complex design challenges that allow us to apply our creativity and work in partnership with our clients.

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Donna Mertes Civil Engineering Department Manager

Donna Mertes Employee Owner of the Year

We are pleased to announce that Donna Mertes, PE, Civil Engineering Department Manager, has been awarded GLHN’s 2020 Employee Owner of the Year. Each year GLHN recognizes an employee-owner who demonstrates our corporate values. Selected by her fellow employee-owners, Donna represents GLHN’s motto of “Our Success Comes from Helping Others Succeed.”  Her attitude, efforts and daily practices promote the collaboration of our integrated architectural engineering team, directly impacting our bottom…

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GLHN Employee Owners

GLHN is in the Community!

Our focus over the last 9 months has been on our neighbors.  If you have watched the local news you have seen the overwhelming need - long lines of cars filled with Arizonans who need help feeding their families.  The need is huge, and we are honored to help.  This year we have raised $5,916 for a total of 41,412 meals and we are not done yet!  As a 100%…

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Thermoplastic Piping Applications for Utility Distribution Systems– Part 2

Thermoplastic Piping Applications for Utility Distribution Systems– Part 2 Authored by John C. McGann, PE | GLHN Architects & Engineers, Inc. In the first part of this series on thermoplastic piping, a discussion was presented focused on the use thermoplastic piping systems in buildings. In the following discussion we review the use of thermoplastic piping in site distribution system, with specific emphasis on HDPE (High Density Polyethylene) and PE-RT (Polypropylene…

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