(702) 333-8057 
Las Vegas winters do not last long, but they get cold enough to matter. Overnight lows drop into the 30s from December through February, and a furnace that sat untouched through eight months of desert summer is exactly the kind of system that refuses to start on the first cold night. Most of the heating calls we run in December are problems that were already there in October, waiting to be found.
This guide covers the failures we see most often on Las Vegas heating systems, what each one typically costs to fix, and how to tell the difference between something that can wait until morning and something that needs a technician now.
The Six Heating Problems We See Most in Las Vegas
Desert climates are hard on heating equipment in a way people do not expect. Systems sit idle for most of the year, dust works its way into everything, and then the unit is asked to run hard for a few weeks straight.
Furnace Will Not Ignite
The most common winter call. On older units it is usually a worn igniter or a dirty flame sensor, both inexpensive parts. The furnace tries to start, runs the blower briefly, then shuts down without producing heat.
Dirty Flame Sensor
After months of sitting idle, a thin layer of residue on the flame sensor tells the furnace no flame is present, so it shuts off for safety. Cleaning it is often a same-visit fix and one of the cheapest repairs in heating.
Blower Motor Failure
The furnace fires but little or no warm air reaches the vents. Desert dust coats the blower wheel and strains the motor, and on systems past ten years the motor eventually gives out under that load.
Thermostat Problems
A thermostat that never switched from cooling to heating, is miscalibrated, or has dying batteries will leave a perfectly healthy furnace sitting idle. We always confirm the thermostat before diagnosing anything expensive.
Clogged Filter and Airflow
A filter that went the whole summer without a change chokes the return air. The furnace overheats, trips its high-limit switch, and shuts down repeatedly. It is the single most preventable heating failure we see.
Heat Pump Not Switching Over
On heat pump systems, a failed reversing valve or a defrost control problem leaves the unit running in cooling mode or blowing air that never gets warm. This one needs a technician, not a reset.
What Heating Repair Costs in Las Vegas
Cost depends on the failed part and the age and type of your system. The ranges below reflect typical Las Vegas heating repairs including labor. The diagnostic fee is disclosed upfront before any work begins, and our 10% military, veteran and senior discount applies.
| Repair Type | Typical Cost | Notes |
|---|---|---|
| Flame sensor cleaning | $80–$180 | Most common no-heat fix; usually same-visit |
| Igniter replacement | $150–$350 | Frequent on furnaces past 8 to 10 years |
| Thermostat replacement | $75–$200 | Includes smart thermostat options; setup included |
| High-limit or safety switch | $150–$400 | Often paired with an airflow correction |
| Blower motor replacement | $300–$700 | Cost varies by motor type and furnace brand |
| Heat pump reversing valve | $600–$1,200 | Major repair; we weigh system age first |
| Heat exchanger replacement | $1,000–$2,500 | Safety issue; replacement often the better value |
If your furnace is more than 15 years old and facing a heat exchanger or major motor repair, we will walk you through the repair-versus-replace math honestly. For systems in that range a new high-efficiency install often makes better financial sense, and it is available with 36-month financing at 0% interest and 90 days of zero payments to start. Our full range of heating services covers both paths.
When Heating Repair Cannot Wait
Most no-heat calls can be scheduled for the next morning. Call immediately, at any hour, if any of these apply:
- You smell gas anywhere near the furnace, in which case leave the house first and call the gas company
- A burning or electrical smell coming from the furnace or vents
- Your carbon monoxide detector has gone off
- The furnace is short cycling and the breaker keeps tripping
- No heat at all with elderly residents, young children, or anyone medically vulnerable in the home
ACE runs 24/7 emergency service across Las Vegas, Henderson, Summerlin and the rest of the valley through the winter. Call (702) 333-8057 any time and we prioritize by safety risk.
The Repair You Avoid Is the Cheapest One
Nearly every emergency heating call we run in December traces back to something a pre-season tune-up would have caught in October. A heating tune-up cleans the flame sensor and burners, checks the igniter, tests the blower and safety switches, verifies the thermostat calls for heat correctly, and inspects the heat exchanger for cracks. It takes about an hour and it is the single best money you can spend on a system heading into winter.
ACE offers a $49 new-customer tune-up special and a $69 standard tune-up for existing customers, and both cover heating as well as cooling. If you have not had your system looked at since spring, that is the place to start. Questions before you book? Contact our team.
No Heat? We Can Usually Be There Today.
Same-day service for most Las Vegas heating calls, 24/7 emergency response through the winter, and free estimates on system replacement with 0% financing for 36 months.
(702) 333-8057 — Call NowSchedule OnlineFrequently Asked Questions
Why does my furnace start and then shut off after a minute?
That pattern almost always points to the flame sensor or the high-limit switch. The furnace ignites, fails to confirm a flame or detects that it is overheating, and shuts down for safety. A dirty flame sensor is the most common cause and is an inexpensive fix. Overheating usually traces back to a clogged filter restricting airflow, so change the filter before you call and see if it clears.
My heat has not been used since last winter. Should I have it checked before it gets cold?
Yes, and October is the right month for it. Systems that sit idle through a Las Vegas summer collect dust on the burners and flame sensor, and small problems only reveal themselves when the unit is asked to run. Getting it checked before the first cold snap means a scheduled visit instead of competing with the whole valley for an emergency slot.
Do you offer financing on heating repairs and replacements?
Yes. ACE offers 36-month financing at 0% interest with 90 days of zero payments to start, available on qualifying repairs and all new system installations. Ask about eligibility when you call, approval is quick and checking initial eligibility does not require a hard credit inquiry.