Established in Sparta, New Jersey, since 1975, we have served customers throughout northern New Jersey and beyond for 30 years.  We are proud of our longstanding reputation for skilled workmanship and quality installations.

Castellano Contracting is certified as an Authorized Contractor by the GAF Materials Corporation, the largest manufacturer of roofing materials in North America.  The GAF Authorized Contractor designation has been awarded to only 6% of roofing contractors nationwide.  In addition, we hold certifications from the Elk Corporation and Tamko Roofing Products, Inc.

And, our firm is an approved member of the Better Business Bureau of Northern New Jersey.  In this, we also seek to assure our many past and present customers of the highest standards of reliability and business ethics.