South Jersey Commercial HVAC Installation and Replacement. Bishop Mechanical Services has worked with businesses of all types offering comprehensive heating, air conditioning and refrigeration services for all different types and brands of commercial equipment. If your air conditioning system isn’t cooling your business enough or if your heating system won’t turn on, call Bishop Mechanical Services, LLC. We respond quickly, our technicians are trained. We’re available 24/7 for emergency commercial HVAC/R repair in South Jersey because we know that problems don’t always happen when it’s convenient. When you’re ready to work with a commercial HVAC/R contractor that is dedicated to your satisfaction and to the quality of work that he does, call Bishop Mechanical Services.