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High Energy Bills From AC
in Lewisville, TX
Lewisville summers are long and expensive to cool. A system that's lost efficiency doesn't announce itself — it just runs longer and costs more each month. Homes built in the 1990s in neighborhoods like Vista Point or Orchard Hill often have original equipment that's well past its efficient years.
Quick Answer
If your AC seems to be working but your electric bill keeps going up in Lewisville, the system is probably running longer than it should to do the same job. Dirty coils, low refrigerant, and aging equipment are the main reasons. A system more than 12 years old loses efficiency every year. Call (361) 401-8806 to have a technician check whether the system is performing the way it should.
Telltale Signs
Warning Signs to Watch For
- Your electric bill is noticeably higher than the same month last year
- The AC runs for long stretches without shutting off
- The house cools eventually but takes longer than it used to
- The outdoor unit seems to run constantly even on mild days
- Rooms farthest from the air handler never quite get comfortable
Root Causes
What Causes High Energy Bills From AC?
Dirty Condenser Coils
The outdoor condenser unit releases heat from your home into the outside air. When the coils get coated in cottonwood, grass clippings, and the fine dust that blows through Lewisville in spring and summer, the unit can't release heat efficiently. It runs longer to do the same job, and your bill goes up. This happens to every outdoor unit that isn't cleaned annually.
The Fix
Condenser Coil Cleaning
A technician rinses the coils with a coil cleaner and a low-pressure rinse to remove buildup. Clean coils shed heat the way they're supposed to and the system doesn't have to work as hard.
Aging or Oversized Equipment
AC systems lose efficiency as they age — a unit that was rated for a certain efficiency when new won't hit those numbers after 12 or 15 years of use. Systems that are too large for the home short-cycle, meaning they turn on and off too fast to remove humidity properly, and the house never feels right. Both situations are common in older Lewisville homes where equipment hasn't been replaced since the house was built.
The Fix
System Efficiency Evaluation and Replacement Consultation
A technician measures what the system is actually putting out versus what it's using, and compares that to what a properly sized new system would do. This gives you real numbers to decide whether repair or replacement makes more sense.
Duct Leaks Losing Conditioned Air
Leaky ducts send cooled air into your attic instead of into your rooms. A duct system with even a 20 percent leak rate makes your AC work much harder than it should. In Lewisville homes with attics that hit 140 degrees in summer, any air leaking into the attic is just gone — you paid to cool it and it disappeared into the heat.
The Fix
Duct Sealing and Pressure Testing
A technician pressurizes the duct system to find where air is escaping, then seals those gaps with mastic or foil tape. Sealed ducts put conditioned air where it's supposed to go and usually make a noticeable difference on the next bill.
Self-Diagnosis
Which Cause Applies to You?
Check the signs you're observing to narrow down the likely root cause before your inspection.
| What You're Seeing | Dirty Condenser Coils | Aging or Oversized Equipment | Duct Leaks Losing Conditioned Air |
|---|---|---|---|
| Outdoor unit coils visibly dirty or clogged with debris | |||
| System is more than 12 years old and bills keep rising | |||
| Some rooms cool fine but others stay warm | |||
| AC runs constantly even on cooler days | |||
| Electric bill is high but house still doesn't feel comfortable |
Free Inspection
Get a Diagnosis in Lewisville
An on-site inspection is the only way to confirm which cause applies to your property. Free, no obligation.
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