Q Service Heating & Air Conditioning | HVAC Services in San Marcos, TX 78666

Our maintenance service is designed to keep your system running efficiently and prevent common local issues. We perform a comprehensive check, including cleaning coils, inspecting electrical connections, checking refrigerant levels to identify potential leaks, and calibrating your thermostat. For San Marcos homes, we pay special attention to components that strain during our long cooling season, helping to prevent unexpected breakdowns and maintain your system's capacity.

Short-cycling is a common issue here, often caused by an oversized unit, a dirty air filter, low refrigerant from a leak, or a faulty sensor. It wastes energy and strains the system. Our technicians are experienced with San Marcos's climate demands and will diagnose the root cause—whether it's a simple fix like cleaning the evaporator coil or identifying a refrigerant leak for a precise repair—to restore proper, efficient cycling and protect your equipment.

The decision depends on your system's age, repair frequency, and efficiency. If your system is over 10-15 years old, requires frequent repairs, or your energy bills are climbing despite maintenance, a replacement may be the most reliable long-term solution. We provide honest, detailed assessments, explaining the pros and cons of repair versus a new, properly sized installation that can offer better comfort and significant energy savings for your San Marcos home.