New Heating & Air Conditioning Units


Are you ready for a new high-efficiency HVAC unit for your Tyler or Longview Texas home or business? At RES Air Conditioning, you have wide range of new heating and air conditioning units to choose from thanks to our connection to the esteemed Trane heating and air conditioning product line. Ask about our warranties.

Known for our dependability and inventory of the finest names in heating and cooling technology, our Comfort Specialist will be glad to provide you the right comfort system based on your home or office's individual needs.

Since 1957, RES has transformed and refined how our Tyler, Longview, and Henderson customers thrive indoors. Thanks to our high-efficiency HVAC units, we’ve successfully delivered and installed countless quiet and energy-efficient comfort units to both homes and businesses throughout East Texas. With a custom heating and cooling unit, our customers can customize their personal comfort regardless of the weather.


  • Furnaces
  • Boilers
  • Home Heaters
  • Geothermal and Split Heat Pumps
  • Home Air Conditioners
  • Evaporator Coils
  • Ductless Systems
  • Packaged Products
  • Fan Coils

Real Solutions for Real Problems

As a full-service HVAC company serving our community, we offer top-notch heating and air conditioning comfort for both commercial and homes in Tyler, Longview, Henderson, and neighboring regions. Since 1957, our team has been providing the very best HVAC products for our valued customers. Our experienced AC professionals stay on the forefront of technology by providing you with the most innovative products in the heating and air conditioning industry.

AC Controls & Thermostats

At RES Air Conditioning, we have a wide range of high-quality AC controls and thermostats for maximum energy efficiency and superior climate control in your Tyler or Longview, Texas home or business. Call us today to learn about the wide variety of home thermostats we offer at affordable prices. Technology even allows you to turn your AC or heating unit on from the touch of your smart phone so you never have to come home to a house that's too hot or too cold.

AC Controls and Thermostats include:

  • Wi-Fi Thermostats
  • Programmable Thermostats
  • Non-Programmable Thermostats
  • Automatic Zoning Controls

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Want An Automated Solution?

Keep Your System Performing At Peak Capacity With Nexia™ Diagnostics

Protecting your family isn’t the only reason to keep your HVAC system running smoothly. It’s also important to protect your investment.

Often, by the time you notice clear signs that your system has a problem, it’s too late. The unit is already damaged and parts need to be replaced.

RES Air Conditioning can help you detect problems before they become irreparable. By installing a Nexia™ Diagnostics system in your home, we will be notified at the first sign that your system needs a tuneup.

Automated Alerts

The Nexia system will email us with an alert if your system isn’t running as efficiently as it should. We will then contact you and plan a time to check out your system.

Proactive Service

This system allows us to protect your system before any real, lasting damage occurs.

System Diagnosis

The Nexia system allows us to quickly diagnose your system and provide a solution fast.