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50+ Years
experience
Expert Historic Restoration Services
Founded in 1955, our company has dedicated over seven decades to preserving architectural heritage through specialized historic restoration services. As a family-owned business spanning three generations, we combine time-honored craftsmanship with innovative technology to address the unique challenges of plaster conservation. Our team of skilled designers, plasterers, painters, and artisans brings unparalleled expertise to every project, prioritizing the preservation of structural integrity while implementing cost-effective solutions. We pioneered proprietary telescopic lift systems that eliminate the need for traditional scaffolding, revolutionizing access to high-ceilinged spaces.

With a portfolio encompassing over 1,500 religious and historic buildings, including landmark theaters and cathedrals, we maintain a steadfast commitment to advancing conservation techniques through partnerships like our collaboration with Historic Plaster Conservation Services. Our leadership in the field is evidenced by our work on nationally significant sites such as the Woolworth Building and the Landmark Theatre, where we balance technical precision with artistic sensitivity to restore architectural masterpieces for future generations.
Services
Art Conservation Plaster Restoration Church Painting Decorative Ceilings Mural Restoration Wood Finishing Theater Restoration Faux Finishes Ceiling Conservation Historic Preservation
Details
  • Year established: 1955
Highlights and features
  • We offer 70+ years of specialized experience in historic plaster restoration
  • Our proprietary telescopic lift system eliminates costly scaffolding requirements
  • Third-generation family leadership ensures deep institutional knowledge
  • Proven track record with 1,500+ completed religious and historic building projects
  • Pioneering partnership with HPCS advances plaster conservation techniques
Services
Plaster Restoration
Specialized restoration of historic plaster surfaces using traditional techniques combined with modern conservation methods. Our team addresses cracks, water damage, and structural deterioration while maintaining original architectural details. We employ HPCS-developed consolidation systems to reinforce fragile plasterwork without compromising historical authenticity.
Telescopic Lift Systems
Proprietary lift technology eliminating traditional scaffolding requirements for ceiling and high-wall restoration. This system reduces project costs by 40-60% while minimizing disruption to building occupants. Originally developed in 1953, our boom lift system provides safe, efficient access to hard-to-reach areas.
Church Restoration
Comprehensive restoration services for historic churches including decorative ceilings, murals, and ornamental plasterwork. We've completed over 1,500 religious building projects nationwide, balancing structural preservation with aesthetic restoration. Our work maintains liturgical functionality while meeting modern safety standards.
Decorative Painting
Expert application of period-appropriate decorative painting techniques including faux finishes and historic color matching. Our artisans recreate intricate patterns and textures using traditional methods. Services include gold leaf work, stenciling, and replication of historic paint formulations.
Mural Conservation
Preservation and restoration of historic murals using non-invasive techniques. We employ specialized cleaning solutions and consolidation methods to stabilize deteriorating paint layers. Our team documents original techniques to ensure accurate restoration while maintaining artistic integrity.
People
Ray Tiedemann
President
Third-generation leader with decades of experience in liturgical plastering and painting. Oversees all operations while maintaining hands-on involvement in complex restoration projects. Holds advanced certifications in historic preservation techniques.
Eric Stewart
President
Co-founder of HPCS with expertise in plaster conservation science. Develops innovative treatment methodologies and application systems. Holds multiple patents for plaster stabilization technologies used in historic preservation projects nationwide.
Rod Stewart
Founder
Established HPCS with a focus on advancing Morgan Phillips' plaster conservation techniques. Pioneered modern consolidation recipes that set industry standards. Retired from daily operations but remains a technical advisor.
Questions
What types of buildings do you specialize in restoring?
We focus on historic religious buildings, theaters, and landmark structures with ornamental plaster elements.
How does your telescopic lift system benefit restoration projects?
Our proprietary system reduces costs by 40-60% compared to traditional scaffolding while maintaining worker safety.
What makes your plaster conservation methods unique?
We combine HPCS-developed consolidation techniques with traditional craftsmanship for long-lasting results.
Can you restore decorative ceiling elements?
Yes, our team specializes in ornamental plaster restoration including intricate ceiling details and moldings.
Do you work outside the Northeastern United States?
While based in New Jersey, we've completed projects nationwide from New York to California.
How do you handle emergency plaster stabilization?
We offer urgent assessment and temporary stabilization services for structurally compromised plasterwork.