Wallis Heating and Cooling - Appleton's Licensed HVAC Services

Uneven heating is a common issue in Appleton homes, often caused by ductwork problems, a failing furnace component, or an improperly sized system. Our technicians perform a thorough diagnostic to pinpoint the exact cause—whether it's a blocked vent, leaky ducts in your attic or crawlspace, or an aging blower motor. We then provide a clear, upfront solution, from sealing and insulating ducts to repairing or recommending a properly sized furnace replacement, ensuring balanced comfort in every room.

Thermostat malfunctions can range from simple battery replacements and recalibration to wiring issues or a complete failure. Our expert at Wallis will first test your thermostat and its connection to your HVAC system. We'll explain whether a repair is possible or if a modern, programmable or smart thermostat upgrade would improve your comfort and energy efficiency. We handle the installation precisely, ensuring it communicates correctly with your Appleton home's heating and cooling equipment.

We strongly recommend seasonal maintenance—a furnace tune-up in the fall and an AC check in the spring. This proactive service is crucial in our climate. Our technicians clean critical components, check for wear and tear, test safety controls, and ensure optimal airflow. This not only helps prevent unexpected breakdowns during extreme cold or heat but also improves efficiency, addresses minor issues before they cause uneven temperatures, and extends the life of your system, saving you money long-term.