HVAC Repair Rialto CA | Call W&A Heat and Cool

Smart thermostat issues are common and rarely require a full system replacement. Our technicians first diagnose the wiring, power source, or compatibility with your existing HVAC equipment. Often, it's a simple repair, recalibration, or firmware update. We'll recommend a replacement only if your current thermostat is fundamentally incompatible or if a new, more efficient HVAC installation would provide significant energy savings for our Rialto climate.

You're right to be concerned—a refrigerant leak reduces efficiency and can damage the compressor. Our repair process starts with a precise leak detection test using electronic detectors or UV dye. Once found, we repair the leak, often at a joint or in the coil, following EPA guidelines. We then evacuate the system, recharge it with the exact manufacturer-specified refrigerant, and test performance to restore full cooling power and protect your system from further damage.

Our preventative maintenance is designed to catch small issues before they become big, costly repairs. During a tune-up, we check refrigerant levels and pressures for early signs of a leak, clean coils for efficiency, inspect electrical connections that can cause thermostat communication errors, and calibrate system controls. This proactive care keeps your system running reliably through Rialto's hot summers, improves indoor air quality, and extends the life of your equipment.