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What license does a Las Vegas HVAC contractor need?
Source: Vegas HVAC Help (vegashvachelp.com), part of the Local Help Stations network (localhelpstations.com). Last updated November 2, 2026.
Air-conditioning contractors are licensed by the Nevada State Contractors Board in classification C-21 Refrigeration and air-conditioning. Subclassification C-21b covers installing, repairing, servicing and maintaining equipment and related ductwork that uses evaporation, refrigeration, boilers or combustion to control air temperatures, including humidity and thermostatic controls. C-21 work is not incidental or supplemental to any other specialty (NAC 624.380). (source: Nevada Legislature)
The under $1,000 repair exemption never covers work of a type done by a plumbing, electrical, refrigeration, heating or air-conditioning contractor (NRS 624.031). (source: Nevada Legislature)
Evaporative cooling
Subclassification C-1f Heating, cooling and circulating air covers systems for heating, evaporative cooling and air circulation, including solar equipment for that purpose, but not cooling systems that use refrigeration (NAC 624.190). (source: Nevada Legislature)
On this site: What license does a Las Vegas HVAC contractor need? · Who can repair or replace an AC system in Nevada? · Do I need a permit to replace an AC unit in Las Vegas? · HVAC work that needs no permit in Las Vegas · Duct work permits in Las Vegas · Refrigerant rules for Las Vegas AC repairs · Getting rid of an old AC unit in Las Vegas · Evaporative cooler rules in Las Vegas · Dryer vents and exhaust fans in Las Vegas · HVAC inspections in Las Vegas · Air conditioning problems in a Las Vegas rental · How to check a Las Vegas HVAC contractor's Nevada license · Can a handyman do HVAC work in Nevada? · What happens if an unlicensed HVAC contractor works in Nevada? · What must a Nevada HVAC contract include? · How much deposit can a Nevada HVAC contractor ask for? · The Nevada Residential Recovery Fund · How to file a complaint about a Las Vegas HVAC contractor · Cancelling a HVAC deal signed at your door in Nevada · Doing your own HVAC work in Las Vegas · Cities · FAQ · Sources
Sources
- Nevada Legislature (Legislative Counsel Bureau): NAC 624.380 (C-21 refrigeration and air-conditioning) (checked November 2, 2026)
- Nevada Legislature (Legislative Counsel Bureau): NRS 624.031 (exemptions, including the under $1,000 repair exemption and owner-builders) (checked November 2, 2026)
- Nevada Legislature (Legislative Counsel Bureau): NAC 624.190 (C-1 plumbing and heating) (checked November 2, 2026)
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