Consulting Services for Architectural Ornamentation,
Historic Structures and Artifacts


Conservation. Preservation. Restoration.


  • Municipal and Private
  • Parks and Museums
    • Historical Societies
    • Educational Institutions
    • Religious Institutions and Cemeteries
  • Monuments - Fountains - Sculpture
  • Antique Mechanicals
  • Architectural Ornamentation


  • Design and Site Planning
  • Project Scope of Work Specifications
  • Site Analysis
  • Material Lab Analysis
  • Structure Documentation
  • Photo Documentation
  • Laser Scanning
  • Products and Services Specifications
  • Conservation and Restoration Workshops
  • Projection Guidance, Quality Control and Management
  • Insurance Inspections and Validations
  • Grant Writing

Press & Recommendations


As cities and towns grapple with the need to respect, repair and restore historical elements, I can only imagine Walter being an important voice and set of hands in this process. I would highly recommend Walter to any individuals or organization looking to conserve, restore and preserve any item or structure in their community.

Oded Horodniceanu, P.E., UA Construction

The Bayport Heritage Association is grateful for the successful completion of the restoration projects you performed on the MeadowCroft House this past season. As always, we find your work to be precise and flawlessly executed.

Robin Starbuck, Bayport Heritage Association

(Walter) is proficient in historical restoration methods and techniques and well versed in the use of new technologies and materials that replicate historical building fabrice and appearance. I must say Mr. DeGroot's work is among the finest I have ever had the pleasure to observe.

J. Lance Mallamo, Vanderbilt Museum