Vegas Homeowner Guide
An AC replacement quote feels brutal — until you realize the furnace sitting next to it is the same age, and replacing them separately costs thousands more than doing them together.
Furnaces and ACs usually die within 2–3 years of each other in Vegas
A new AC running on a 20-year-old furnace works harder and dies faster
Two separate installs = two crane lifts, two permits, two days of disruption
Package units share one cabinet — replacing "just the AC" usually means replacing the whole unit anyway
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 heat punishes both sides. If your AC made it 12 years, your furnace probably has 1–2 more in it – at best. Replacing the AC alone means you’ll be calling us back for the furnace before the new AC’s warranty runs out.
A new high-efficiency AC paired with a 20-year-old furnace can’t reach its rated efficiency. The blower motor on an old furnace can’t move the airflow a new AC needs. You paid for a 16 SEER unit running at 12.
One crane lift, one permit, one day of disruption vs. two of each. Most Vegas homes save $4k–$6k by doing both at once instead of “we’ll replace the furnace in 2 years” math.
If you’re on a Vegas rooftop package unit (most ranch homes are), the AC and heater share one cabinet. “Just replacing the AC” usually means replacing the entire unit – at which point not replacing the heating side is leaving money on the floor.
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
At Bob’s Repair, we help homeowners in Henderson improve energy efficiency and indoor comfort by upgrading attic insulation.

Our team recently completed a full HVAC installation in Henderson, upgrading a residential system to a 4-ton RunTru by Trane split system.
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.