Walter J. Hollien Preservation Architects & Restoration Contractors

Expert Witness Preservation Architects & Restoration Contractors

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Walter J. Hollien Preservation Architect Expert Witness
Preservation Architect Expert Witness
Preservation Law Expert
New York State Building Code Expert
New York City Building Code Expert
New York State Fire Code, Energy Conservation Code & Plumbing Code Expert
National Electrical Code Expert
Preservation & Restoration Construction Methods & Materials Expert
Society of Architectural Historians
Society of Industrial Archaeology
International Molinological Society TIMS
International Wind Mill Study Unit Secretary
Society for the Preservation of Old Mills SPOOM
Millstone Research Center President MRC
NYS Fireman's Association
Public Lecturer of Historic Architecture & Engineering   



Call or e-mail
Walter J. Hollien Preservation Architect
Toll free No. 888-598-1160