Sub Kool AC & Heating - Houston's Reliable HVAC Services

Short cycling, where your AC turns on and off frequently, is often caused by issues like a dirty air filter, low refrigerant, a frozen evaporator coil, or an oversized unit. In Houston's heat, this problem strains your system and hikes up bills. Our technicians perform a comprehensive diagnosis to pinpoint the exact cause—whether it's a simple fix like cleaning the coils or a more complex refrigerant issue—and provide a lasting repair to restore proper, efficient operation.

Absolutely. High cooling bills in Houston are often due to an aging, poorly maintained, or incorrectly sized HVAC system. We offer detailed energy evaluations, checking for duct leaks, insufficient insulation, dirty components, and improper refrigerant levels. Based on our findings, we recommend targeted services—from sealing ducts and performing a precision tune-up to advising on a high-efficiency replacement system—all designed to reduce your energy consumption and lower your monthly costs.

Prevention is key in our climate. We recommend a professional maintenance check-up at least twice a year—ideally in spring and fall. Our maintenance service includes cleaning coils, checking refrigerant levels, calibrating thermostats, inspecting electrical connections, and ensuring all components are in top shape. This proactive care helps prevent short cycling, maintains peak efficiency to control bills, extends your system's lifespan, and helps avoid costly emergency breakdowns during Houston's hottest days.