1-800-377-1984 zarnas.info@gczarnas.com


Subcontractors Association of Delaware Valley

G.C. Zarnas is a proud member of Subcontractors Association of Delaware Valley (SADV).  Established in 1968, SADV is a membership association representing multi-trade subcontractors, suppliers, vendors, manufacturers, engineers, and architects in the commercial, industrial, construction, and healthcare industries. 

International Concrete Repair Institute

As a proud ICRI Concrete Repair Delaware Valley Chapter member, we are dedicated to the organization’s mission: To improve the quality of concrete restoration, repair, and protection through education of, and communication among, the members and those who use its services. Pat McBride, Project Manager for G.C. Zarnas, also serves in a leadership role as a board of directors member. 

BOMA Philadelphia

G.C. Zarnas is proud to be an active member of BOMA Philadelphia, an industry leading organization of over 500 commercial real estate professionals. An influential force, BOMA Philadelphia provides excellence among commercial real estate professionals and related service providers through advocacy, professional development, educational & training opportunities, information sharing, forums for interaction, and community involvement.


Lehigh Valley Economic Development Corporation

We are members of the Lehigh Valley Economic Development Corporation (LVEDC), a not-for-profit, one-stop, full-service business and economic development agency performing several functions: marketing, business retention and attraction, land and site redevelopment, research, regional development and financing.

General Building Contractors Association

We are proud members of the General Building Contractors Association, the voice of the Philadelphia’s region building construction industry.  As members, we educate the membership and provide career development and opportunities for craftspeople to work at G.C. Zarnas in Philadelphia.

IFMA Greater Philadelphia

We are proud to be members of the Greater Philadelphia Chapter of IFMA.  With over 300 members. IFMA is the leading Facility Management organization in the Philadelphia region.  G.C. Zarnas provides our services to many facilities managers across the area, and support high-quality educational programs and networking opportunities that benefit facility managers and industry-related professionals.


Lehigh Valley Contractors Association

We are members of the Lehigh Valley Contractors Association (LVCA), an organization that has been involved in major construction projects in the Lehigh Valley since its incorporation in 1940.  LVCA represents a membership of commercial, industrial and institutional general contractors, sub-contractors and specialty contractors in four PA counties: Northampton, Lehigh, Monroe, and Carbon.


Painting and Decorating Contractors of America

We are members of the Painting and Decorating Contractors of America, an organization which enhances the advancement of the coating application industry through education, programs and legislation for over 10,000 owners and top-flight managers from more than 3,000 painting and decorating firms across the U.S. and Canada