Air Duct Cleaning
J.C. Pauli, Air Duct Cleaning Manager
April 23, 2026
Open 7 Days a Week! Request An Appointment
Vegas Homeowner Guide
140°F attic ducts losing cooling before it reaches you
One thermostat trying to read two floors
Undersized or leaky return ducts
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.
Vegas attics bake. Ducts running through them lose cooling capacity before air ever reaches your second floor – exactly the kind of airflow fault our AC repair technicians in Las Vegas track down and correct.
A downstairs thermostat can’t feel what’s happening upstairs. So when the main floor hits the setpoint, the system shuts off — while the bedrooms are still 8° behind.
If the return path is too small or leaky, upstairs air keeps recirculating warm instead of getting cooled. You can run a perfectly sized AC and still not hit comfort if the return can’t keep up.
Afternoon sun loads the second floor with heat your system was never sized for. Common in Summerlin, Spring Valley, and Mountain’s Edge homes built before 2010.
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 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.
Why is the upstairs still 80° with a brand-new AC? In most cases the AC isn't the problem, the attic is. Poor ductwork and low insulation let cold air (and money) escape before it ever cools the second floor. In this video, a Bob's Repair technician climbs into a Las Vegas attic to show what's really going on and how rebuilding the attic the right way keeps your whole house cool.
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Why can't a brand-new AC cool the upstairs? Because new equipment can't fix a bad building envelope — in Las Vegas, attics hit 160°F+ and most townhomes were built with only the bare-minimum insulation to pass code, so your AC is fighting a losing battle against heat pouring in from above. In this video, Bob's Repair explains why the attic — not the AC — is the real culprit, and how upgrading insulation to proper levels keeps cool air where it belongs.
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What is the "forbidden ice cream" in your attic and how does it save you money? It's blown-in insulation, and most Las Vegas homes don't have nearly enough of it, which means the moment your heater kicks on, that expensive warm air rises straight through the ceiling and out of the house. In this video, Bob's Repair shows how topping off an attic to R-49 insulation works like a thick thermal blanket, keeping heat in your bedrooms instead of the sky.
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Why is my AC so loud and struggling, even though it's not broken? Often the unit is fine but can't breathe: an undersized return opening "chokes" the blower motor, like running a marathon while breathing through a straw. In this video, Bob's Repair demonstrates the fix — cutting, enlarging, and sealing the blower door opening to lower static pressure — a simple airflow correction that boosts efficiency and protects your compressor from an early death.
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