Walter De Groot
Middle Island, NY 11953
Telephone (631) 246-9091
Walter De Groot

Mr. DeGroot's work is among the finest I have ever had the pleasure to observe.

- J. Lance Mallamo
Executive Director,
Suffolk County Vanderbilt Mansion - Planetarium - Museum

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Consulting Services for Historical Structures, Artifacts and High End Properties

  • Pre-purchase Inspections
  • Site analysis and Documentation
  • Insurance Inspections and Validations
  • RFP's and Job Specifications written
  • Design Services
  • Construction Plans and Blueprints
  • Expert Testimony
  • Project and Construction Management
  • Products and Services Sourcing
  • Vendor Sourcing and Selection
  • Instruction for Conservation and Restoration Techniques
  • Instruction for Mold Making, Casting and Finishing


For more information or to discuss your project, please contact us.

Telephone: 631-246-9091
Address: Middle Island, NY 11953


Walter de Groot

"We look forward to providing you with the very best service."

Walter De Groot
Walter de Groot Architectural Ornamentation Restoration - Design - Fabrication
Middle Island, NY 11953 Telephone (631) 246-9091 email:
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Walter De Groot