AC Installation
Frideric Prandecki, Co-Owner
March 5, 2025
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Vegas Homeowner Guide
The recovery machine shows up before your old AC leaves
The teardown is done like the new equipment is already in the house
The line work is where your new AC's lifespan is decided
Commissioning: the system is tested, not just turned on
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.
Before anyone unbolts anything, the refrigerant in your old system has to be pulled out with a recovery machine — it’s federal law, and it’s also the first honesty test of the day. Venting refrigerant to the sky is faster and free, which is exactly why corner-cutting crews do it. If you don’t see a recovery machine running before the old unit comes down, ask why.
Getting a full system out of a Vegas attic — and the new one in through the same small access hole — is careful, physical work. Done sloppily, it damages ductwork, platform framing, and drywall before the new system is even unboxed. Done right, the old equipment leaves as a neat pile of scrap and your attic is cleaner than the crew found it.
Copper refrigerant lines have to be cut clean, flushed of old oil and debris, and brazed while nitrogen flows through them. Brazing without nitrogen cooks black oxide scale onto the inside of the pipe — and that scale migrates straight into your brand-new compressor. It’s invisible the day of the install and fatal five to ten years later. This is the single most-skipped step in the Valley, because no homeowner ever thinks to ask about it.
“It blows cold” is not a test. A real commissioning includes weighing in the exact refrigerant charge, measuring static pressure and airflow, checking temperature split, and verifying the electrical draw against the manufacturer’s specs. You should get those numbers, in writing. A system that’s merely “running” on day one can be quietly overworking itself every day after.
From Summerlin to Henderson, here is how we’re keeping homes across the Las Vegas Valley cool and comfortable.
We installed a new 3-ton Trane 14S gas package unit on this residential rooftop.
View Project
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.
Where does the refrigerant in your old AC go on replacement day? Into a recovery tank, pumped out by a certified tech before the unit is moved — venting it is never allowed, and a crew that skips the step is cutting a corner you'd never see. In this video, Bob's Repair shows the recovery machine that arrives before the old system leaves.
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How does an entire HVAC system get out of an attic? Through the same small ceiling access it went in through, piece by piece down a ladder. In this video, Bob's Repair strips out a system rusted through after 17 Las Vegas summers and rebuilds it in place — which is where most of the real labor on an attic install day goes.
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The joints on your refrigerant lines decide how long a new AC lasts. In this video, Bob's Repair shows the brazing work behind the panel — clean joints, tight seals, no shortcuts — because this is what determines whether the refrigerant stays in for twenty years or leaks out in three, and whether your warranty holds when it matters.
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A five-second step at the start of an install decides whether the system leaks later. In this video, Bob's Repair shows why copper refrigerant lines get a clean, square cut before anything is joined: a rough cut makes a poor braze, and a poor braze is where refrigerant escapes months or years down the road.
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Want to check your own install in ten seconds? Put a level on the condenser pad. In this video, Bob's Repair explains why an out-of-level unit isn't a cosmetic problem — the oil inside can't return properly, and that wears the compressor out early. It's the fastest way to spot a crew that was in a hurry.
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How do you keep a busy Las Vegas restaurant cold when it's 115° outside? Not with off-the-shelf duct. In this video, Bob's Repair fabricates a commercial system from flat sheet metal, measuring every joint to that specific ceiling, for an exposed run that moves maximum air and looks right over the dining room.
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