J & J Building Maintenance - Berwyn's Licensed HVAC Repair

Yes, refrigerant leaks are a common issue in our area, especially as systems age. We'll perform a thorough inspection to locate the leak, repair it, and recharge your system to the manufacturer's exact specifications. This restores cooling efficiency, prevents further component damage, and ensures your unit operates safely and effectively.

Thermostat malfunctions are frequent and can stem from wiring issues, dead batteries, or calibration problems. First, try replacing the batteries. If that doesn't help, our technicians can diagnose the issue, whether it's a simple fix or a sign you need an upgrade to a more reliable programmable or smart thermostat for better control and energy savings.

We recommend bi-annual maintenance—once in spring for your AC and once in fall for your heating system. Our service includes checking refrigerant levels, cleaning coils, inspecting electrical connections, calibrating thermostats, and testing system controls. This proactive care helps catch small issues like minor leaks or thermostat glitches before they turn into major, costly repairs.