DJ's Mechanical, Inc. is a union-affiliated, minority-owned, small business enterprise, centrally located in Millstone Township, NJ.  Our staff has successfully completed nearly 700 projects in and around the New York/New Jersey metropolitan area. 

DJ’s is a full-service Mechanical Contracting firm, with all the requisite skills and disciplines required to support all facets of our clients' piping needs.  In addition to offering a strong capability in plumbing and heating services, we offer specialty disciplines such as shielded metal, arc welding, and process piping.  Our professional staff has accumulated over seventy years of experience in Mechanical Contracting and Site Restoration activities.  We service all Federal, private and public sector clients with a broad range of piping, HVAC, and general contractor services.