HVAC Repair in Las Vegas, NV
Homes here need heat from November through April and cooling from May through October. If your system quits, tell us what it's doing and a licensed contractor who covers Clark County will get in touch.
Tell us about the job
It takes about a minute.
A system that never gets a season off
Your air conditioner runs from May through October against afternoons that hit 98°F. Six months of that load falls hardest on the compressor, and the compressor is what tends to give out when a system finally quits in summer.
Then winter turns around and asks for heat on nights averaging 37°F, from November through April. That's a full year of one system or the other running, with no real break between them. Clark County has also logged 306 damaging wind events over the past ten years, and wind that strong works at ductwork and outdoor units until something loosens. If your heating or cooling is acting up, it's worth having someone look before the next swing in weather asks more of it.
- 6 months
- November through April, your system heats
- 6 months
- May through October, it cools
- 37°F
- the average winter night it heats against
- 98°F
- the average summer afternoon it cools against

NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $150 a year off heating and cooling for a typical Clark County home.
Estimates for a typical Clark County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Nevada fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
Nevada requires HVAC contractors to hold a state license.
The Nevada State Contractors Board issues that license, and it tests the contractor before handing one out. The board keeps a record of who holds a license, so it's tied to the contractor, not to the address where the work happens or to any single job.
For a repair on your heating and cooling system, that state license is what stands behind the person working in your house. The license covers the contractor as a whole, not this particular repair, but it means the board has already checked them out and keeps a record you can go back to if something goes wrong.
Sources: Nevada Legislature · Nevada State Contractors Board
- Why is my heat not working?
- Most of the time it comes down to the igniter, the thermostat, or airflow blocked by a dirty filter. If the furnace won't start at all, check that the thermostat is set to heat and above room temperature, and that the filter isn't choked with dust. If it starts and then shuts off, that's often a flame sensor or igniter losing its signal partway through the cycle. Nights here average 37°F from December through February, so a furnace that won't hold heat is worth getting looked at before a cold snap sets in.
- Why is my system running but not cooling the house?
- The blower is moving air, but something is stopping that air from actually carrying cold. A dirty filter or a frozen coil are the two most common reasons, and both cut off the airflow the system needs to cool. Low refrigerant from a leak will also do it, and that one needs a contractor to find and fix. With afternoons here reaching 98°F in summer, a system that runs but doesn't cool is losing ground fast, so it's worth checking the filter first before anything else.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it's set to the right mode and the temperature you want, and check the batteries if it has a screen that looks dim or blank. Next check the filter. A filter packed with dust chokes off airflow and can make a working system act like a broken one. Check the breaker too. If the system has no power at all, a tripped breaker is worth ruling out before anything else. If those all check out and the problem is still there, a contractor will need to look at the actual equipment.


