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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GLHN Announces Leadership Transition

Transition. Transformation. Alternation. Development. Switch or shift. Whatever you call it, change is inevitable and bittersweet. GLHN announces the retirement of Henry Johnstone, PE, as President and Cloriza Lomeli, Associate Director of Business Development. Henry joined GLHN in 1988 as a mechanical engineer and developed an expertise in campus utility systems and building heating, ventilating and air conditioning systems that engaged clients from Alaska to Oman to Columbia. Starting as a…

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Electrical Engineer

Ye Zhang, PE, WELL AP Promoted to Electrical Engineering Department Manager

Ye Zhang, PE, WELL AP has been promoted to the position of Electrical Engineering Department Manager. Ye joined GLHN’s growing Phoenix office in 2018 as our first full-time Phoenix-based Professionally Registered Engineer (PE), shortly after the firm moved into its expanded location at 3636 N. Central Avenue. Ye is a Registered Engineer in the states of AZ, NV, and CA and holds a Bachelor of Engineering Degree from Dalhousie University,…

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GLHN is always up for the challenges and discoveries of Make Ready Projects.

Among one of the greatest technical challenges in many projects is the preparation of the site infrastructure to support the planned new building improvements.  This precursor to the vertical construction phase is termed “Make Ready” and is the first phase of any major new facility installation or expansion. The Make Ready phase may involve developing new power, gas, water, sewer, or information technology infrastructure and often requires the rerouting of…

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