Preparing Your AC and Heating Unit for Winter in Texas

Texas, known for its sweltering summer days, can sometimes surprise residents with its chilly winters. While snowstorms may not be the norm, it’s essential to prepare your home for those cold snaps, ensuring comfort throughout the season. One crucial step in winter prep is ensuring your AC and heating unit is up to the task. Here’s a guide to help you winterize your system efficiently:

  1. Regular Maintenance:
    • Filter Changes: One of the simplest yet most impactful steps you can take is to replace or clean your air filters. A clean filter ensures efficient airflow, reduces energy consumption, and helps maintain good indoor air quality.
    • Professional Check-up: It’s wise to have a professional inspect and service your heating system before winter. They can check for issues like carbon monoxide leaks in furnaces, ensuring safety.
  2. Clearing the Outdoor Unit:
    • Even though the AC may not be in use during the winter, the outdoor unit still needs attention. Remove any debris, leaves, or twigs that might have collected around the unit. A clear space ensures better efficiency and reduces the risk of pest infestations.
  3. Sealing Leaks:
    • Drafts and leaks can quickly sap the warmth from your home. Check doors, windows, and any utility line entrances for potential leaks. Seal them using weather stripping or caulk to keep the cold out and the warmth in.
  4. Thermostat Upgrade:
    • If you’re still using an old thermostat, consider upgrading to a programmable or smart thermostat. These allow you to set schedules, ensuring you’re not heating the home when no one is there. It’s a great way to save on energy costs.
  5. Insulate:
    • Ensure your attic and walls have adequate insulation. Good insulation will keep your home warm, putting less strain on your heating system.
  6. Check the Ducts:
    • Ensure that ducts are clean and in good repair. Leaky ducts can lead to significant energy loss. It’s a good idea to have them inspected every couple of years.
  7. Reverse Ceiling Fans:
    • If your ceiling fans have a reverse switch, use it. By making the blades turn in a clockwise direction, the fan will push warm air downwards, helping to evenly distribute heat.
  8. Protect the AC Unit:
    • If you know you won’t be using the AC unit at all during winter, consider using a waterproof cover to protect it. This shields the unit from winter rains and any potential snow or ice.
  9. Test Early:
    • Before the cold really sets in, test your heating system to ensure it’s working correctly. If there are any issues, it’s better to address them before you’re relying on the system for warmth.
  10. Educate:
  • Ensure everyone in the house knows how to safely operate space heaters or any supplementary heating devices. Always keep flammable materials away from heaters.


Preparing for winter in Texas may not involve snow shovels and winter-grade antifreeze, but ensuring your AC and heating unit is primed for the season is crucial. With regular maintenance, checks, and a few adjustments, you can ensure a comfortable and cost-efficient winter. And remember, even in the heart of Texas, it’s always better to be prepared!