Vegas Homeowner Guide
AC runs forever, blows air, but the house just doesn’t get cold like it did last summer? In Vegas, it’s almost always a cleaning problem — not a system problem, and a focused AC repair and coil cleaning restores the cooling you’re missing.
Evaporator coil coated with dust and biofilm
Condenser coil packed with desert debris
Blower wheel that's never been cleaned
Drain pan and condensate line clogged with slime (NEW)
Check any that match. Two or more, and it’s time for a diagnostic – not another guess.
These four causes account for most calls like this we run across the Las Vegas Valley – Summerlin, Henderson, Spring Valley, and everywhere in between.
The indoor coil pulls air through itself thousands of times per cooling season. Even with a clean filter, fine dust, pet dander, and skin cells slip through and bond to the wet aluminum fins. Over 3 to 5 years that layer becomes an insulating blanket. The coil stops absorbing heat from the air, and the system runs longer to do less work.
Vegas wind drives cottonwood seed, dust, palm pollen, and landscape debris straight into your outdoor condenser. When the coil gets packed, the system can’t reject heat to the outside air. The compressor runs hotter, longer, and at higher pressures. Most condensers we open haven’t been rinsed properly since the day they were installed.
The squirrel-cage blower wheel pulls air across the coil — but only if its blades are clean. After 5+ years of dirty filters or unsealed return ducts, the blades pick up a half-millimeter coating of dust. That coating changes the wheel’s airflow geometry. You can lose 20 to 30% of system airflow with no visible problem from the outside.
The drain pan under the evaporator coil sits in standing water for hours after every cycle. In Vegas humidity it grows algae and biological slime that eventually clogs the condensate line. When water backs up, it touches the coil, kills capacity, and triggers safety shutoffs. Most homeowners notice when the ceiling stains — not before.
From Summerlin to Henderson, here is how we’re keeping homes across the Las Vegas Valley cool and comfortable.
Bob’s Repair team performed a full summer tune-up for a homeowner in Las Vegas.
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We responded to a maintenance call in Henderson where the homeowner wanted to ensure their AC system was running efficiently.

As part of our seasonal maintenance service, Bob’s Repair performed a summer tune-up in Henderson to ensure this homeowner’s air conditioning system was operating safely and efficiently.
We diagnose on-site, photograph what we find, and walk you through it before we recommend a single repair.
Every part and labor line itemized before we start. If we find something extra mid-job, we stop and call you before adding a dollar.
We fix the part that's failing. If a $40 capacitor solves it, that's the job — not a $1,200 replacement you didn't need.
We run the system, take a reading, and confirm the symptom that brought us out is gone. If it isn't, we stay and keep working.
What's the simple AC fix that can lower your electric bill? A thorough coil cleaning. When your AC's coil is caked with dust and debris, the system has to work harder to move air, driving up energy bills, weakening airflow, and recirculating dirty air through your home. In this video, Bob's Repair shows the coil-cleaning process they use to get Las Vegas AC systems breathing (and cooling) like new again.
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Why is the house still hot when the A/C is running and the bill is high? Usually a clogged coil is choking the airflow — and while most companies just rinse it and call it a day, that surface-level clean leaves the buildup that's actually causing the problem. In this video, Bob's Repair shows their deep coil-cleaning process that breaks the buildup all the way down, restoring airflow, colder air, and less strain on your system — worth checking before you pay to replace the unit.
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What's really inside an old AC system — and are you breathing it? When Bob's Repair pulled this unit from a Las Vegas home, they found a buildup of dead skin, grease, and dust mites that the blower wheel was pushing back into the home's air supply with every cycle. In this video, they show why contamination at this level can't be fixed with a simple tune-up, and how they replaced the system with a high-efficiency Trane 16 SEER unit — keeping the job site spotless the whole time.
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What actually comes out of a commercial building's air ducts? Years of accumulated dust, debris, and contaminants that tenants and employees end up breathing every day. In this video, Bob's Repair runs its industrial Hypervac duct-cleaning system through a Las Vegas commercial building — equipment far more powerful than residential gear — pulling out buildup you'd never see and leaving cleaner, healthier air behind.
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