TLC Heating & Cooling - Raleigh's Certified HVAC Repair

Clogged air filters are by far the most frequent issue we encounter. A dirty filter restricts airflow, forcing your system to work harder, which increases energy bills and can lead to breakdowns. For most Raleigh homes, we recommend checking your filter monthly and replacing it every 1-3 months, especially during peak summer and winter seasons. This simple step is the best way to maintain efficiency and prevent unnecessary strain on your HVAC system.

Yes, weak cooling is a classic sign of a refrigerant leak, a common problem we repair. Refrigerant is the substance that absorbs heat from your home; if it's low, your AC can't cool effectively. Our technicians will first perform a precise leak detection test to locate the source. We then repair the leak, following all EPA guidelines, and recharge the system with the exact amount of refrigerant specified by the manufacturer. This restores cooling performance and protects your compressor from damage.

We recommend professional HVAC maintenance twice a year—ideally in the spring before the summer heat and in the fall before winter. This seasonal tune-up allows us to catch small issues, like minor refrigerant leaks or airflow restrictions, before they become major repairs. Our maintenance visit includes cleaning critical components, checking refrigerant levels, testing system controls, and ensuring everything is operating safely and at peak efficiency for our local climate.