D.J.H. MECHANICAL SERVICES INC.

Welcome to D.J.H. Mechanical Services Inc.

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D.J.H. Mechanical Services Inc., family-owned and operated, provides heating, ventilation and air conditioning services to a variety of residential, commercial, industrial and institutional clients in the Greater New York Metropolitan Area. DJH Mechanical is a certified minority-owned Sub Chapter S corporation - MWBE Certified.

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D.J.H. is a member of the Mitsubishi Diamond Alliance. As a Mitsubishi Diamond Designers, D.J.H. is a certified contractor to install design/build systems with in-house engineering staff that have received training for the design of Mitsubishi Electrics CITY MULTI systems. The Mitsubishi Diamond Designer program is a recognized program for those who have achieved the highest level of training in order to better serve their clients.