HVAC Mistakes That Could Be Running Up Your Electric Bill in Round Rock & Georgetown, TX

If your electric bill has been increasing in Round Rock or Georgetown, TX, your HVAC system may be the culprit. Air conditioners and heaters work hard in Central Texas’ hot summers and chilly winter nights—but small mistakes in how you use or maintain your HVAC system can lead to wasted energy and higher bills.

Here are the most common HVAC mistakes homeowners make—and how to fix them before your next utility statement arrives.

1. Neglecting Regular HVAC Maintenance

Skipping seasonal tune-ups is one of the quickest ways to increase energy costs. A poorly maintained HVAC system has to work harder, using more electricity to keep your home comfortable.
Solution: Schedule professional HVAC maintenance in Round Rock or Georgetown at least twice a year. This keeps your system efficient and extends its lifespan.

2. Forgetting to Replace Air Filters

Dirty filters restrict airflow, forcing your AC or furnace to work overtime. Not only does this increase your bill, but it also reduces indoor air quality.
Solution: Change your air filter every 1–3 months, especially during peak summer and winter seasons.

3. Cranking the Thermostat Too Low (or Too High)

In Texas heat, it’s tempting to set your thermostat way down, but extreme settings don’t cool your home faster—they just make your system run longer.
Solution: Keep your thermostat at 78°F in summer and 68°F in winter for the best balance of comfort and energy savings.

4. Ignoring Air Leaks in Your Home

Leaky windows, doors, and ductwork let conditioned air escape, wasting energy. Your HVAC system then has to run longer to keep up.
Solution: Seal air leaks with weatherstripping, caulk, and duct sealing to keep cooled or heated air where it belongs. Learn more about HVAC optimization. 

5. Running an Outdated HVAC System

Older HVAC units are far less efficient than today’s models. If your system is more than 10–15 years old, it may be costing you much more in energy bills.
Solution: Consider upgrading to a high-efficiency HVAC system. Homeowners in Round Rock and Georgetown may even qualify for rebates and financing options.

Frequently Asked Questions About HVAC Efficiency

1. How often should I schedule HVAC maintenance in Round Rock or Georgetown, TX?
Twice a year—once in spring before cooling season, and once in fall before heating season. This ensures peak performance and prevents surprise breakdowns.

2. Can a dirty air filter really increase my energy bill?
Yes. A clogged air filter makes your HVAC system work harder, which can raise your electric bill by up to 15%.

3. What thermostat setting saves the most money in Central Texas?
The Department of Energy recommends 78°F in summer and 68°F in winter for maximum energy savings without sacrificing comfort.

4. When should I replace my HVAC system instead of repairing it?
If your unit is over 10 years old, requires frequent repairs, or your energy bills are steadily climbing, replacement may be the smarter investment.

5. Who can I call for HVAC service in Round Rock or Georgetown, TX?
Contact a trusted local HVAC company like McCullough Heating & Air Conditioning for expert maintenance, repair, and installation. We proudly serve Round Rock, Georgetown, and the Greater Austin area.

Lower Your Bills and Stay Comfortable in Round Rock & Georgetown

Don’t let simple HVAC mistakes drain your wallet. With regular maintenance, smart thermostat use, and the right system upgrades, you can enjoy year-round comfort while keeping your energy bills under control.

Call McCullough Heating & Air Conditioning today to schedule your HVAC tune-up in Round Rock or Georgetown, TX!