Whether you need to install a wireless thermostat or an entirely new HVAC system, you can rely on the team at R & R Mechanical. Located in Philadelphia, PA, these Mitsubishi Diamond Contractors serve both commercial and residential clients throughout Philadelphia, Montgomery, Bucks, and Delaware counties. The technicians at R & R Mechanical are EPA-certified professionals, and they are proud to provide installation and maintenance services on your ductless heating or air conditioning system. Whether your cooling and heating system needs preventative maintenance or you want to upgrade to a multi-zone cooling system for those hot summers, their team will take care of you.