WE TAKE PRIDE IN OUR EXCELLENT SERVICE AND WORKMANSHIP. MRJ Mechanical Incorporated is a TSSA Certified company providing service, repair, and installation in both residential and commercial heating, cooling, and refrigeration. We are a family owned and operated business serving the Tri-City area and have over 40 years combined experience in the HVAC industry. Our fully licensed and trained technicians are distinguished by their functional and technical expertise. Our hands on experience ensures, you our customer, receives the most effective and professional service. Customer comfort and satisfaction are our guarantee. For all your heating and cooling needs, residential and commercial Industrial please do not hesitate to call MRJ Mechanical Inc. more... See more text