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GBG provides Measured Building Survey (MBS) services using Laser Scanning and Photogrammetry techniques to generate BIM models and baseline documentation databases for buildings, which can then be used for detailed conditions surveys, forensic evaluation and design/repair designation.

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Construction and Engineering

NDE (Non-Destructive Evaluation) techniques are used to identify construction details of reinforced concrete, steel-framed buildings, and transportation infrastructure.

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Architecture and Preservation

Historically sensitive buildings subject to preservation or renovation efforts often require NDE to identify construction arrangement details and conduct condition assessments to inform design with little to no impact on the building. 

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Water Infiltration

Water-penetration testing of the building envelope can help to identify moisture paths through material, specification or construction deficiencies.

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Notable Projects and Clients

Frank Lloyd Wright's Solomon. R. Guggenheim Museum, New York and Fallingwater, PA

New York State Capitol Building, Albany, NY

United States Capitol, Washington, D.C.

New Jersey State Capital Building, Trenton, NJ

Wyoming State Capital Building, Cheyenne, WY

Hearst Castle, San Simeon, CA

NYC School Building Authority

Rose Bowl, Pasadena, CA

Santa Monica Airport, CA

Yale University, New Haven, CT

Princeton University, Princeton, NJ

Columbia University, New York, NY

McGill University, Quebec, Canada

East & West Block, and Washington Street Parliament Buildings, Ottawa, Canada

Metropolitan Transit Authority Subway Tunnels, New York, NY

NYC Parks Department

St. Patrick's Cathedral, New York, NY

Andrew R. Mellon Auditorium, Washington, D.C.

Philadelphia Police Headquarters, Philadelphia, PA

USPS Morgan Processing and Distribution Center, New York, NY

Soldiers' and Sailors' Monument, New York, NY

Colony Club, New York, NY

The Plaza Hotel, New York, NY

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