National Bro-Kar Heating & Cooling | Expert HVAC Services in Branford, CT

Yes, a refrigerant leak is a common issue in our area, especially as systems age. Our technicians use electronic leak detectors to precisely locate the source. We then repair the leak, evacuate the system to remove any moisture or air, and recharge it with the exact amount of refrigerant specified by the manufacturer. This restores efficiency and cooling power while protecting your compressor from damage.

Thermostat malfunctions often stem from electrical issues, aging components, or incorrect placement (like in direct sunlight or near a vent). We'll diagnose if it's a wiring problem, a faulty sensor, or simply time for an upgrade. We can calibrate your existing unit or install a new, more reliable programmable or smart thermostat to improve comfort and energy savings.

Our preventative maintenance tune-ups are key. We perform over 20 checks, including inspecting refrigerant lines for early signs of wear, testing thermostat calibration and operation, cleaning coils, and checking electrical connections. This proactive service catches small issues before they become major repairs, extends your system's life, and keeps it running efficiently through Connecticut's seasons.