Historic Masonry Restoration – Stone Repair & Replication

The contract seeks specialized subcontracting services for the removal, repair, and replication of historic stone elements using dutchman pinning, patching, and tooling techniques to preserve architectural integrity. All work must be conducted in a manner that matches the cleaned historic stone in color, texture, and profile, requiring in situ mock-ups to ensure visual and material compatibility before any permanent installation. The project emphasizes fidelity to original craftsmanship and material authenticity, with strict adherence to conservation standards for historic masonry. This is a total small business set-aside under SBA guidelines, designated under NAICS code 238140 for masonry contractors. The solicitation was posted on April 24, 2026, with proposals due by May 26, 2026, and is issued by the Department of the Interior through its NPS ConOps Strategic office. The work is anticipated to occur at a federal historic site, though the exact location is unspecified. All contractors must demonstrate experience in historic preservation techniques and be prepared to meet exacting aesthetic and structural requirements without the benefit of standardized references, relying instead on on-site testing and approval of mock-ups.