HVAC Contractor License in Nevada: Requirements, Qualifier, Bond and Exams

The requirement is statewide: the Nevada State Contractors Board licenses contracting businesses for this work, and an NSCB license is not a city or county credential.

Cities and counties are not entirely out of the picture, though.

State law lets the governing body of any county or incorporated city require an additional local contractor license on top of the NSCB license, so before you bid, check whether the city or county where the job sits adds one.

The Nevada State Contractors Board issues contractor licenses under NRS and NAC Chapter 624.

HVAC contracting sits in classification C-21 Refrigeration and Air-Conditioning, which the Board divides into seven subclassifications: C-21a Refrigeration, C-21b Air-conditioning, C-21c Sheet metal, C-21d Maintenance, C-21e Solar air-conditioning, C-21f Chilled and hot water systems and C-21g Industrial piping.

C-21b covers installation, repair, service and maintenance of air-conditioning equipment and related ductwork.

C-21d, the maintenance subclass, is narrower: it does not allow replacement of complete condenser assemblies on remote systems, air handlers, or work that alters the design of an existing system.

Heating, evaporative cooling and air-circulation work that does not involve refrigeration systems is covered separately by subclassification C-1f under classification C-1 Plumbing and Heating.

Every Nevada contractor license must name a qualifying individual, and the license belongs to the business rather than to that person.

The qualifier needs at least 4 full years of experience as a journeyman, supervising employee or contractor in the specific classification, within the 15 years before applying.

Education can carry part of it: training in a program at an accredited college or university, or other Board-accepted training such as apprenticeship certificates, counts toward up to 3 of the 4 years — so at least 1 of the 4 years has to be experience in the classification itself.

Two exams, and both belong to the qualifier: a Business and Law (CMS) exam and a trade exam for the classification, administered by PSI.

The Business and Law exam is open book — it is built on the Construction Business and Law Manual for Nevada — while trade exams are closed book except for certain code references listed in the content outline.

Candidates get three attempts per exam and must wait 2 weeks between attempts; after a third failure the application is void, and reapplying is possible after 30 days.

PSI charges its own exam fees, listed in PSI bulletins, which our research did not capture.

The Board sets each contractor's bond individually at license approval, between $1,000 and $500,000 based on the type of license, monetary limit, past, present or future financial responsibility, experience and character of the applicant — so there is no flat bond figure to budget from.

Each license also carries a monetary limit: the maximum contract the licensee may undertake on one or more construction contracts on a single construction site or subdivision site for a single client.

A financial statement is filed for every license, with CPA-prepared statements required above $25,000.

On insurance, all contractors must show proof of industrial insurance (workers' compensation) to be licensed or renewed, unless exempt with a signed affidavit; the NSCB pages we read state no general-liability minimum, so confirm any project-specific insurance demands with the Board and your clients.

As of September 29, 2026, the Board's application fee is $300 and the biennial license fee is $600.

A license is initially issued for a two-year period and renewed licenses run every two years after that.

Residential contractors also pay a Residential Recovery Fund assessment — $200 for monetary limits up to $1,000,000 — and PSI's exam fees sit outside these Board fees.

On keeping the license current, our research found no continuing-education requirement for Nevada contractor license renewal in NRS 624, NAC 624 or the Board's pages, but that is an absence we could not verify, so confirm renewal requirements with the Board rather than planning around it.

Nevada's route in for out-of-state contractors is licensure by endorsement.

A qualifier who has been actively licensed for 4 years in an equivalent classification in another state, with no discipline, can have the trade exam and the experience certification waived — but must still pass the Nevada Business and Law exam.

The Board's State Equivalency Chart matches Nevada C-21 to Arizona CR-79, California C-20 plus C-38, Connecticut S-1 and Louisiana Mechanical Work (Statewide), listing those states' exams as equivalent, while Florida CM Mechanical Contractor holders still take the Nevada trade exam.

Confirm your state's row on the Board's live chart before you rely on a match.

One boundary to know: the NASCLA exam waiver applies only to general building classifications in Nevada, not to C-1 or C-21 trade exams.

Nevada's deadlines are specific.

When the qualifier's association or employment ends, the licensee must notify the Board in writing within 10 days and replace the qualifier within 30 days, or the license may be suspended or revoked.

Start recruiting the next qualifier before the departure, then.

Sharing one qualifier across entities is also constrained: one person may qualify more than one Nevada license only if the same licensee owns at least 25% of each entity, or the qualifier owns at least 25% of each — a sole-proprietor qualifier may qualify one additional license without the ownership test.

No. Nevada's exemption for repair or maintenance work under $1,000 explicitly does not cover work of a type performed by plumbing, electrical, refrigeration, heating or air-conditioning contractors, so that work needs a licensed contractor whatever the job is worth.

The Board spells out the penalty for getting this wrong: unlicensed contracting is a misdemeanor on a first offense, with a fine of up to $1,000 and up to 6 months in jail, and a category E felony by the third offense.