R. Kaller and Sons Contractors has the in-house experience and craftsmen required to restore America's most valuable and significant historic landmarks.

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Independence Hall
United States Department of Interior
National Park Service
Scope of Work:
Section 01010 - Summary of Work
Section 01045 - Cutting and Patching
Section 01171 - Restoration Procedures
Section 01510 - Scaffolding
Section 01530 - Protective Enclosures

American Flag House & Betsy Ross Memorial
City of Philadelphia
Department of Recreation
Scope of Work:
Division 2 - Site Work
Division 5 - Metal Fabrication
Division 6 - Rough Carpentry
Division 6 - Finish Carpentry
Division 7 - Thermal and Moisture Protection
Division 8 - Doors and Windows
Division 9 - Gypsum Drywall
Division 9 - Painting

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Atwater Kent Museum
City of Philadelphia
Department of Recreation
Scope of Work:
Division 2 - Selective Demolition 
Division 7 - Modified Bitumen Sheet Roofing
Division 7 - Metal Roofing
Division 7 - Sheet Stainless Steel Flashing
Division 8 - Glazing

Ryerss Mansion
Fairmount Park Commission
Scope of Work:
Division 5 - Metal Fabrication
Division 6 - Rough Carpentry
Division 6 - Finish Carpentry
Division 7 - Thermal and Moisture Protection
Division 9 - Painting

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Lemon Hill Mansion
Fairmount Park Commission
Scope of Work:
Division 2 - Site Work
   (Selective building demolition)
Division 7 - Thermal and Moisture Protection
   (Wood shingles, sheet metal roofing, sheet metal flashing)

Laurel Hill Mansion
Fairmount Park Commission
Scope of Work:
Division 2 - Site Work
   (Selective building demolition)
Division 7 - Thermal and Moisture Protection
   (Wood shakes, sheet metal flashing, gutters, downspouts)
Change Order Scope of Work:
Three Chimneys - Fabricate & Install Lead Coated Copper Counter Flashing, Chimney Crickets
Rebuild Center Chimney Masonry, Repoint Supports, Install Flagstone Cap
Install Lead Coated Copper Valleys

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One Union Hill Road, West Conshohocken, Pa 19428 888-754-7663 info@rkiroof.com