National Roofing Contractors Association
NRCA - The National Roofing Contractors Association (NRCA) is one of the construction industry's most respected trade associations, the voice of roofing professionals and leading authority in the roofing industry for information, education, technology and advocacy.
Slate Roofing Contractors Association
Cedar Shake and Shingle Bureau
Horsham Preservation & Historical Association
CD Kaller has been a long time supporter of the Horsham Preservation and Historical Association (HPHA) and our president Curt Kaller has served on the board of directors for this organization since its founding. We have worked on a number of projects at the c1721 Penrose-Strawbridge House and the c1750 Novotny House both located in Horsham.