If you've opened your Oncor bill in July and felt a little sick, you're not alone. DFW homeowners regularly see electric bills of $300–$600+ in peak summer months. The good news: most of it is fixable, and you don't always need a new system to see real savings.
In North Texas, air conditioning accounts for 50–70% of your summer electric bill. When your AC is struggling — due to age, a dirty filter, low refrigerant, or a failing component — it runs longer cycles to hit the same temperature, burning more power the whole time.
💡 Quick win: change your air filter right now if it's been more than 30 days. A $10 filter can save you $30–$50 per month in the summer.
An annual HVAC maintenance visit typically costs $80–$150 and includes cleaning coils, checking refrigerant levels, testing electrical components, and clearing the drain line. Homeowners who do this regularly see 10–15% lower energy bills and fewer emergency breakdowns.
If your unit is 12+ years old and you're still on a 10 SEER system, upgrading to a 16–18 SEER2 unit can cut your cooling costs by 30–40%. Over 5 Texas summers, that's real money back in your pocket — and United National HVAC offers financing from $49/mo to make it happen without a financial shock.
The main culprit is your HVAC system running overtime in extreme heat. Common causes include a dirty air filter, low refrigerant, a failing compressor, poor attic insulation, and an aging unit that has lost efficiency.
In Texas, air conditioning typically accounts for 50–70% of your summer electric bill. An inefficient or aging HVAC system can push that even higher.
Change your air filter monthly, set your thermostat to 78°F when home, seal air leaks, schedule annual HVAC maintenance, and consider upgrading to a high-efficiency unit if yours is over 10 years old.
Yes. A clogged filter forces your AC to work harder, increasing energy consumption by up to 15% and putting extra strain on the system.
For the DFW climate, a minimum of 15 SEER2 is recommended. Units rated 18–20 SEER2 offer the best long-term energy savings given how many months per year your AC runs in North Texas.
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