Martinez Heating & Cooling - Houston's Certified HVAC Repair

Common signs include reduced airflow from vents, unusual noises like rattling or squealing from your indoor unit, higher-than-normal energy bills, and your system struggling to maintain the set temperature. In Houston's humid climate, a malfunctioning air handler can also lead to poor humidity control and ice buildup on the evaporator coils. If you notice any of these issues, it's best to call for a professional diagnosis to prevent further damage.

Yes, thermostat wiring problems are common, especially in older Houston homes. Symptoms include a blank display, the HVAC system not turning on or off, or the temperature not matching the setting. Issues can stem from loose connections, corroded wires, or incorrect installation. Our technicians can safely inspect your thermostat's wiring, identify the fault, and perform the necessary repairs or recommend an upgrade to a more reliable model.

We prioritize emergency calls for Houston homeowners, especially for issues like complete system failure on a hot day or a suspected electrical problem. We offer prompt response times and will work to get a technician to you as quickly as possible, often the same day. Our goal is to restore your comfort and safety swiftly, providing a clear diagnosis and solution.