Eric D. Hammarberg

Associate Principal


Eric Hammarberg’s experience spans from construction worker/craftsman to designer and project manager for many historic restoration and preservation projects such as facade restoration of the Chrysler Building, development of a Master Plan for General Theological, and capital and maintenance projects on the landmark structures of Prospect Park in Brooklyn, New York. Prior to joining WJE, Mr. Hammarberg managed the New York office of Brisk Waterproofing, part of Western Construction Group, a nationwide restoration and preservation contractor. Prior to that, he was Vice President and Director of Historic Preservation at Thornton Tomasetti.

Mr. Hammarberg’s responsibilities have included condition surveys, preservation methodologies, restorations, programming, specification research and writing, and reviewing handicap, environmental, and landmark compliance. He has primary expertise in restoration of historic stone and brick masonry, terra cotta, and roofing. Mr. Hammarberg uses creative approaches to access, investigation, and repairs of unusual and difficult conditions. He has presented papers at a variety of conferences and workshops and appeared on The History Channel’s “Modern Marvels–The Chrysler Building.”


Historic Preservation/Repair and Rehabilitation Design

  • Monitoring and Protection Plans of Historic Structures During Construction and Demolition Activities - Various Sites: Protection and monitoring plans for the existing adjacent to construction sites*
  • 7–9 East Seventy-Second Street - New York, NY: Lead for the structural and exterior building envelope design teams for a comprehensive historic restoration and conservation of late nineteenth century stone facades, monumental wood windows, decorative iron and copper work, and slate roofs of two townhouse structures*
  • Chrysler Building - New York, NY: Project manager for devising a two-year fast-track restoration from grade to pinnacle of the spire, involving more than seventy-five suspended scaffold drops and industrial rope access; restoration of historic materials included brick and stone masonry—the first ever use of architectural stainless steel sheet metal; 3,500 steel double-hung and stainless steel casement windows, street-level stainless steel storefronts, and nickel bronze light fixture*
  • Prospect Park - Brooklyn, NY: Served as construction supervisor and consultant for capital and maintenance projects on landmark structures, including architectural and sculptural metal restoration and design, tile roof design and repair, stone masonry restoration, road and sidewalk construction, and recreation of historic log-construction bridges*
  • Columbia University, Buell Hall - New York, NY: Project manager for designing exterior restoration and interior renovation of a brick building constructed in 1876, the former Bloomingdale Asylum and the oldest building on the Columbia University campus*
  • Woolworth Building - New York, NY: Due diligence investigation for building facade review


Peer Review

  • Multiple peer reviews, including of the historic architectural and materials impact of the three finalists’ proposals for the most recently planned alterations to the historic Holy Mosque in Makkah*
  • St. Patrick’s Cathedral - New York, NY: Peer review for plaster ceiling restoration

*Indicates with previous firm(s)

Professional Affiliations

Association for Preservation Technology - Northeast Chapter, founding board member
Maplewood (New Jersey) Historic Preservation Commission


Rhode Island School of Design
Bachelor of Fine Arts, Design, 1982
Bachelor of Architecture, Architecture, 1983
Restore Masonry Conservation, 1991–1992