About Us J.B. Giacoma Consulting, LLC provides expert evaluation services and forensic litigation support. With many decades of experience in General Construction, and with particular attention to the Mechanical – (H.V.A.C.- Heating, Ventilation, and Air Conditioning), Electrical, and Plumbing Trades, we use the collective experience of our principals, John B. and John K. Giacoma., and the knowledge of our trade specific associates, as required, to facilitate assisting in timely resolution of disputes.