Longtin Engineering is a multi-disciplinary firm located in Ballston Lake, New York, specializing in Structural Engineering, Architecture and Lighting Design. The firm, founded in 2004 by Al Longtin, PE as a structural engineering firm, was formed to provide creative solutions to technically challenging projects. Mr. Longtin brings over 20 years of creative experience working on a wide variety of structurally challenging projects in a number of market sectors and with a variety of clients. William G. Koonz II, AIA, LC, LEED AP, a licensed Architect and certified Lighting Designer, has designed and managed projects ranging from small residential additions to $4 billion manufacturing facilities over the last 20+ years. Challenging projects excite Mr. Koonz and push the creative thoughts to drive the best solution for his clients. As principals of Longtin Engineering, Al Longtin and William G. Koonz II, bring their unique experience and perspective to each and every project. This leads to a better understanding of budget, schedule and technical solutions that have not been considered by many in firms their size. This non-traditional approach enables us to engage each project in a much more efficient process that is better coordinated, quicker and less expensive than in other practices. Whether it is a historic structure or a new modern manufacturer, the premise of the firm remains true to its roots, provide creative solutions to technically challenging projects.