Mechanical Expert Witness Return to Directory Business Area Other Tags Expert Witness, Litigation Expert Witness, Plumber Expert Witness, Professional Expert Witness, Witness Consulting Services Contact Person John Harkins Biz Phone 484-461-3000 Website http://mechanicalexpertwitness.com Street Address 884 Briarwood Rd PA Newtown Square United States of America Zip / Pin 19073 Contact listing ownerSend MessagePlease log in to be able to send messages to the listing owner.