Smith Heating & Cooling Columbia - Columbia's Best HVAC Services

Common signs in our area include uneven heating or cooling between rooms, unusually high energy bills, and excessive dust. You might also hear whistling sounds from your ducts. Our technicians use specialized pressure testing and thermal imaging to accurately locate leaks behind walls and in attics, providing a clear assessment before any sealing work begins.

Freeze-ups here are often caused by restricted airflow from dirty filters or blocked return vents, or by low refrigerant levels due to leaks. Both prevent the coil from absorbing heat properly, causing condensation to freeze. We'll check your filter, blower fan, ductwork, and refrigerant charge to diagnose the exact cause and prevent recurring issues.

Yes, sealing leaks is one of the most effective ways to boost efficiency in our climate. We first map your duct system, then seal leaks at connections and seams with professional-grade mastic or metal-backed tape. This prevents conditioned air from escaping into unused spaces, which can improve system efficiency by up to 20%, lower bills, and enhance overall comfort.