How to Lower Your AC Bill in Phoenix This Summer: 9 Proven Tips That Actually Work

If you live in Phoenix, you already know: summer isn’t just hot, it’s relentless. With weeks of 110°+ temperatures and long cooling cycles, your air conditioner becomes your best friend… and your biggest energy expense. But you’re not stuck paying sky-high utility bills.

Here are 9 expert-backed, Phoenix-tested ways to lower your AC bill without sacrificing comfort.

1. Raise Your Thermostat Strategically

For every degree you raise your thermostat, you can save up to 3% on cooling costs.

Set your thermostat to 78°F when home, and higher when away
Avoid cranking it down to 70°F. It won’t cool faster, but it will spike your bill
Install a smart thermostat to automate these savings

2. Service Your AC System Annually (Or Twice Yearly in Phoenix)

A well-maintained system runs 15–20% more efficiently than a neglected one.

Clean coils, check refrigerant, inspect motors and fans
Dirty systems work harder and cost you more
Spring is the ideal time to tune up in Phoenix

Energy.gov – AC Maintenance Tips

Related: How Often Should You Service Your Air Conditioner?

3. Change Your AC Filters Regularly

A clogged filter can reduce airflow and increase energy use by up to 15%.

In Phoenix, change filters every 30–60 days due to dust
Use high-efficiency pleated filters if you have pets or allergies
Set reminders so it becomes a routine

4. Block Out the Sun with Smart Shading

Direct sunlight can heat up your home fast, especially south and west facing windows.

Use blackout curtains or thermal shades during peak sun hours
Add awnings, shade screens, or plant heat-resistant trees (like Palo Verde)
Reflective window film can also help reduce indoor temps

5. Use Ceiling Fans (the Right Way)

Fans don’t cool rooms, they cool people by speeding up heat evaporation from your skin.

Set fans to rotate counterclockwise in summer to push air down
Raise your thermostat a few degrees when using fans
Turn fans off when you leave a room to save energy

6. Seal Leaks and Insulate Properly

If your cool air is escaping, your AC has to work overtime.

Seal leaks around windows, doors, and ductwork
Add insulation in attics and crawl spaces
Use weather stripping and caulk where needed

You can even schedule a home energy audit through APS or SRP.

7. Upgrade to an Energy-Efficient AC Unit

If your system is 10+ years old, it could be wasting energy even when running “normally.”

Look for 16+ SEER units with variable-speed compressors
Rebates available from APS, SRP, and federal tax credits
Expect up to 30–40% energy savings with the right unit

8. Cool Only the Rooms You Use

Zoning systems or ductless mini-splits allow you to:

Turn off cooling to unused rooms
Customize temperatures by zone
Avoid overcooling your entire house just to be comfortable in one room

This alone can cut cooling costs dramatically for multi-story homes.

9. Avoid Heat-Generating Appliances During Peak Hours

Stoves, ovens, and even dryers add heat your AC has to combat.

Cook outside or use a microwave
Run dishwashers and dryers at night
Unplug devices when not in use, they radiate heat, too

🧠 Bonus Tip: Know Your Utility’s Peak Hours

Both APS and SRP have time-of-use plans. Running your AC during off-peak hours can save you hundreds per year, especially if you adjust your schedule accordingly.

Conclusion: Smart Cooling = Smart Saving

Phoenix summers will always be brutal but your energy bill doesn’t have to be. With a few simple adjustments and the right upgrades, you can stay cool and keep your money where it belongs in your pocket.

📞 Call 800.555.5555 today to schedule a tune-up, get a new system quote, or ask about smart thermostat installation.