John F. Harkins

John F. Harkins, Mechanical Expert Witness Services

Founder and President of John F. Harkins Co., Inc. and Harkins Mechanical Services, Inc., has been active in Heating, Ventilating, Air Conditioning, Refrigeration and Plumbing Industries for over 40 years. Started company with One Thousand Dollars and built the company to the 48 largest in the USA, doing 35 million in annual sales with 550 employees in 1984, currently, operating Harkins Mechanical Construction, Inc.

My personal involvement in all the major trade associations has given me an added dimension in the successful operation of my companies. Read Bio...

Professional Expert

Mechanical Consultation, Design Build, Construction or renovation projects.

Harkins Mechanical Construction Job History:

Governmental Builders
Sporting Venue
Educational Facilities
Office Buildings
Rehab of Apartment Units (While Occupied)
Building Maintenance
Construction Design Build (DB)

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Expert Witness Testimony

Plaintiff: The School District of Philadelphia

Defendant: Waldinger vs. Harkins; In 1985 The Supreme Court of the United States ruled in favor of Harkins on the conduit clause of it’s subcontract with Waldinger.

Allow our expertise and knowledge in the mechanical, design build, construction and renovation to contribute to the technical facts and details associated with your case.

John Harkins distingush reputation and extensive service experience is a proven asset to assist in the lawful resolution of your dispute. Details...


    • Opinions Citing John F. Harkins Company, Inc. v. The Waldinger Corporation

      John F. Harkins Company, Inc. v. The Waldinger Corporation, 796 F.2d 657 (3rd Cir. 1986) Cited by 40 opinions • Susan Haines, as Administratrix Ad Prosequendum and of the Estate of Peter F. Rossi v. Liggett Group Inc., a Delaware Corporation Loew's Theatres Incorporated, a New York …Read More »
    • John F. Harkins CO., INC. v. Waldinger Corp…

      No. 85-5695. 796 F.2d 657 (1986) This appeal involves a dispute between a contractor and subcontractor. The district court held that a seemingly broad arbitration provision set forth in one clause of the subcontract was limited by another subcontract clause which incorporated a narrow arbitration …Read More »
    • Defendant: Waldinger vs. Harkins; In1985

      JOHN F. HARKINS CO., INC. v. WALDINGER CORP. No. 85-5695. 796 F.2d 657 (1986) JOHN F. HARKINS COMPANY, INC. v. The WALDINGER CORPORATION, Appellant. United States Court of Appeals, Third Circuit. Rehearing and Rehearing Denied August 20, 1986. James E. Stephenson (Argued), Brian G. Corgan, …Read More »
    • Plaintiff: The School District of Philadelphia

      John F. Harkins Co. v. SCH. DIST. OF PHIL. - Justia In this appeal we are asked to review the trial court's determination of the amount of increased compensation which a plumbing contractor was entitled to receive after the School District of the City of …Read More »

Mechanical Expert Witness

John F.Harkins brings a lifetime of experience, over 66 years, to his Expect Witness and Consulting services.

From a Vocational school education thru specialized courses in the mechanical contracting field, to starting a mechanical business in the most humble surroundings. John Harkin’s experience and work ethic grew his company into the 48 largest in the USA!

While doing so contributed to its clients, employees and society the best service in the mechanical contracting industry.

All of this is yours when you engage JFH for your needs in the mechanical contracting industry as a consultant or expert witness.