How Often Should You Service Your HVAC in Las Vegas? (The Desert Changes the Math)
Most national advice says to service your HVAC once a year. That advice was not written in the Mojave. Las Vegas systems run longer, hotter, and dustier than almost anywhere in the country — your AC might log more compressor hours in one July than a Midwest unit logs all summer.
The Vegas schedule
Cooling tune-up: every spring. March or April, before the first 100° week. A tech cleans the coils, checks refrigerant charge, tests capacitors and inspects electrical connections. The capacitor is the part that loves to die during the first heat wave — catching a weak one in April is the cheapest repair you'll ever approve.
Heating check: every fall. Yes, even in Vegas. Overnight winter lows in the 30s are normal, and a furnace that sat idle for eight months deserves a safety inspection before ignition — especially the heat exchanger, which is a carbon monoxide issue, not just a comfort issue.
Filters: every 1–2 months, not every 3. The box says 90 days. Desert dust says otherwise. If you have pets or live near construction (which in Vegas means everyone), check monthly.
What skipping it actually costs
- Dirty coils force the system to run longer for the same cooling — that's your power bill
- Low refrigerant slowly cooks the compressor — the most expensive part in the system
- Worn parts fail on the hottest days, when demand (and wait times) peak
The pattern we see every year: systems that get a spring tune-up sail through July. Systems that don't, fill our emergency board during the first 110° stretch — at emergency timing, on the worst possible week.
The honest version
No, a tune-up doesn't make a 16-year-old system young again, and any company that promises that is selling you something. What it does is catch the cheap failures before they become expensive ones, and give you an honest read on how much life your equipment has left — so replacement happens on your schedule, not the desert's.