Big Ds AC and Heating | Experienced HVAC Repair in Houston, TX

Our expert technicians perform comprehensive system evaluations to identify inefficiencies causing high energy use. We clean and tune your AC unit, check refrigerant levels, seal ductwork leaks, and recommend upgrades like programmable thermostats or high-efficiency systems. Regular maintenance from Big Ds ensures your system runs optimally, reducing strain and cutting down on those costly Houston summer bills.

In Houston's humid climate, freeze-ups often stem from dirty air filters, low refrigerant, or airflow issues. At Big Ds, we first thaw the coil safely, then diagnose the root cause—whether it's a refrigerant leak, blocked vents, or a failing blower motor. We repair the issue promptly and provide guidance on preventive measures, like regular filter changes, to keep your system running smoothly and avoid future freeze-ups.

We offer a full range of services tailored to Houston's needs: AC repair and maintenance to boost efficiency, heating system checks for winter, duct cleaning to improve airflow, and emergency repairs for sudden breakdowns. Our preventive maintenance plans include seasonal tune-ups to catch problems early, helping you avoid high bills and coil freeze-ups while extending your system's lifespan in our demanding local climate.