TJD Engineering provides mechanical, electrical, plumbing and fire suppression engineering to our clientele in projects ranging from new construction to renovation of existing facilities.  In addition we provide construction administration services on projects for which we have provided design services.  TJD also has an extensive list of outsourcing personnel utilized as required to react to client needs that may exceed our in-house capabilities.

At TJD we pride ourselves in providing personal attention to our Clients and we believe that the small size of our firm enables us to tailor our efforts to the precise needs of the client while allowing us the flexibility to react to continuously changing Client needs.


TJD Engineering is a multi-disciplined engineering firm established in 1992.

We provide engineering consulting and design for HVAC, plumbing, electrical, and fire protection to the greater NY tri-state area.