Heating and air conditioning repair in Las Vegas
Our guide to heating and air conditioning repair covers how the job works. Below: the Las Vegas numbers a HVAC contractor looks at, with sources.
Homes in Las Vegas
Half of the homes in Las Vegas were built in 1994 or earlier (median year built, Census ACS). By median year built, homes here are older than in 2 of the 56 other cities we cover. Older homes here often have ducts and venting that were sized for a different system.
Source: Census ACS
Source: Census ACS
In Las Vegas, owner-occupied homes make up about 57% of occupied housing. That is 140,325 of 247,741 households. Of the 56 other cities in this network, 45 have a lower share of owner-occupied homes. Owners usually decide on a replacement; renters should start with the landlord or property manager.
Source: Census ACS
Source: Census ACS
Utility gas is the leading heating fuel in Las Vegas, covering about 58% of occupied homes. Other fuels: electricity 39%, bottled or tank gas 1%, fuel oil or kerosene under 1%. Homes on that fuel need a contractor licensed and equipped for it.
Source: Census ACS
Source: Census ACS
Las Vegas climate, by the numbers
Air conditioners near Las Vegas face about 3,407 cooling degree days in a typical year, per NOAA's 1991-2020 normals. Measured at the Las Vegas Air Terminal (NV) station. The cooling load here is higher than in 52 of the 56 other cities we cover. Cooling demand at that level is why the outdoor unit's size and condition matter here.
Source: NOAA normals
Source: NOAA normals
Homes near Las Vegas face about 1,992 heating degree days in a typical year, per NOAA's 1991-2020 normals. Measured at the Las Vegas Air Terminal (NV) station. The heating load here is higher than in 13 of the 56 other cities we cover. Heating load like that decides whether a heat pump alone is enough or a furnace backup makes sense.
Source: NOAA normals
Source: NOAA normals
Las Vegas logs roughly 11 freezing nights in an average year. Of the 52 other cities in this network, 7 have a lower number of freezing days.
Source: NOAA normals
Source: NOAA normals
Highs of 90 F and up come on roughly 136 days a year around Las Vegas. Of the 54 other cities in this network, 53 have a lower number of 90 F days.
Source: NOAA normals
Source: NOAA normals
Seasons and risk in Las Vegas
On heat wave risk, FEMA's National Risk Index puts Clark County, NV at very high. The same heat wave rating applies in 7 of the 55 other cities in this network. Heat waves are when an older air conditioner is most likely to fail, so a pre-season check pays off.
Source: FEMA risk index
Source: FEMA risk index
Clark County, NV carries a very low cold wave risk rating in FEMA's National Risk Index. The same cold wave rating applies in 4 of the 53 other cities in this network. Frozen weather is when a furnace that limped through fall finally quits.
Source: FEMA risk index
Source: FEMA risk index
In Nevada, HVAC contractors are licensed by the Nevada State Contractors Board; status can be checked on the agency's official lookup page.
Source: Nevada State Contractors Board (Nevada) · Nevada State Contractors Board license information · Authority naming the Nevada State Contractors Board
Source: Nevada State Contractors Board (Nevada) · Nevada State Contractors Board license information · Authority naming the Nevada State Contractors Board
Sources, checked October 2026
- U.S. Census Bureau, ACS 2024 5-year, profile 16000US3240000
- NOAA NCEI U.S. Climate Normals 1991-2020, station USW00053123
- FEMA National Risk Index (December 2025), Clark County, NV
- Nevada State Contractors Board (Nevada)
- Nevada State Contractors Board license information
- Authority naming the Nevada State Contractors Board
Local offices and rules in Las Vegas
The City of Las Vegas adopted the 2024 IBC, 2024 IRC, 2024 Uniform Plumbing Code, 2024 Uniform Mechanical Code, 2024 IECC and 2023 NEC, effective January 2026; the 2019 CLV Administrative Code remains in effect.
Source: www.lasvegasnevada.gov. Checked October 2026.
Source: www.lasvegasnevada.gov. Checked October 2026.
Exact HVAC change-outs and repairs in the City of Las Vegas can be permitted online without plans, while any work not on the online list needs plans submitted for review.
Source: www.lasvegasnevada.gov. Checked October 2026.
Source: www.lasvegasnevada.gov. Checked October 2026.
The city's new-resident guide names NV Energy as the electric power provider for Las Vegas residents.
Source: www.lasvegasnevada.gov. Checked October 2026.
Source: www.lasvegasnevada.gov. Checked October 2026.
Southwest Gas provides natural gas service to City of Las Vegas residents, according to the city's new-resident page.
Source: www.lasvegasnevada.gov. Checked October 2026.
Source: www.lasvegasnevada.gov. Checked October 2026.
If you smell gas, leave the house and call your gas utility from outside. Keep a working carbon monoxide alarm near the bedrooms, and do not open a furnace cabinet that is running.
Common jobs
