Surviving Summer in Texas: HVAC Tips That Actually Work

Summer in Texas doesn’t play around. It’s hot. Like, REALLY hot. And if your HVAC system isn’t pulling its weight? You’ll be slow-roasting in your own home. And you know that’s not how you want to spend July.

At Heritage Air Services, we know that keeping your home cool in this kind of heat can feel like a full-time job. But with a few smart HVAC tips (and maybe a little help from your favorite local pros), you can beat the heat without melting into your sofa.

Here’s what actually works—straight from the Heritage playbook:

1. LEAVE. YOUR THERMOSTAT. ALONE. (Unless You Know What You’re Doing)

Cranking your thermostat down to 65°F won’t cool your house faster—it’ll just make your AC work overtime and spike your energy bill.

Best thermostat setting for Texas summers: 76–78°F when you're home, and a few degrees higher when you're out.

Pro tip: Upgrade to a smart or programmable thermostat and let the system do the thinking for you. Your energy bill (and your sweaty self) will thank you.

2. Check Your Air Filters (Seriously, Again)

Dirty filters are the silent killers of HVAC efficiency. A clogged filter makes your system work harder than it should—which means worse air quality, higher energy costs, and a worn-out AC unit begging for retirement.

Change your filters every 1–3 months. No exceptions.
LOUDER for the people in the back: CHANGE. YOUR. FILTERS.

3. Schedule That HVAC Tune-Up. Today.

Still searching “how to keep your house cool in Texas”? If you haven’t scheduled seasonal HVAC maintenance, that’s your first step.

A professional check-up from Heritage Air Services can catch small issues before they turn into big, sweaty, expensive ones.

Bonus: Regular maintenance extends the life of your HVAC system and keeps it running at peak performance.

4. Seal the Leaks

Hot air is sneaky—especially in older homes. It creeps in through unsealed doors, windows, and leaky ductwork, undoing all the good your AC is trying to do.

Add weather stripping, check your insulation, and let us test your ducts. The goal: keep the cool air in, and the Texas heat way out.

5. Block the Sun Like You Block Your Ex

Blinds, curtains, UV-blocking film—whatever it takes. That gorgeous sunlight streaming through your windows? It’s turning your home into a sauna.

Close blinds during the hottest parts of the day and invest in reflective window treatments. Your HVAC system deserves a break.

6. Upgrade If It’s Time

We love a retro vibe—but not when it comes to your AC unit from 2004. If your system struggles every summer, it’s probably time to retire it.

At Heritage Air Services, we’ll help you choose the right HVAC system for your home size—energy-efficient, powerful, and built for Texas weather. No pep talks required.

7. Use Your Ceiling Fans the Right Way

Ceiling fans aren’t just for décor—they’re a secret weapon. In the summer, set them to spin counterclockwise. This pushes cool air down and helps circulate the AC more effectively.

It’s a simple switch that can make a big difference.

Final Thoughts: Texas Summer Ain’t for the Weak

Summer in Texas is no joke—but neither are the benefits of proper HVAC care. A well-maintained system means lower bills, cooler air, and fewer meltdowns (literal and emotional).

Need a tune-up? Thinking about an upgrade? Or wondering why your AC sounds like it’s growling at you?

Call us at Heritage Air Services. We’re your go-to team for honest HVAC service in Texas—keeping you cool, calm, and comfortably conditioned, no matter how high that thermostat climbs.

Need a quote or want to schedule your seasonal HVAC maintenance?
Call, text, or send a carrier pigeon. We’ll be here—with ice packs and expertise.