Timothy Costello combines a unique perspective gained from more than twenty years as a fire protection engineer and code consultant, along with twenty-five years in the volunteer fire service. He is accomplished in fire protection systems evaluation, design, and commissioning; the application of building and fire codes; fire resistance design; and the development and exercising of emergency preparedness plans. Mr. Costello works closely with building owners, facility and safety managers, developers, architects, engineers, attorneys, and code officials to develop innovative and code compliant solutions so that each project is completed successfully. This work has also led to his participation on technical committees for the development of major New York City Building Code revisions and for three National Fire Protection Association (NFPA) standards.

Prior to joining WJE, Mr. Costello served in a number of roles with Jensen Hughes, Inc. (Rolf Jensen & Associates), including vice president/ operations manager, director, and principal engineer. He also was the president of TRC Fire Engineering, P.C., a fire engineering firm serving clients in New York City.