Founded in 1971, P.J. Mechanical Corp. has served the New York real estate industry as a leader in the construction, installation, service and maintenance of HVAC systems. Founder and Chairman Peter J. Pappas Sr . is committed to providing the finest air conditioning installation and service available. With a specialty in new construction, construction retrofits, renovations, and alterations of new and preexisting air conditioning systems, P.J. Mechanical can handle all your heating and air conditioning requirements.