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Frequently asked questions

Source: Vegas HVAC Help (vegashvachelp.com), part of the Local Help Stations network (localhelpstations.com). Last updated November 2, 2026.

What license does an AC contractor need in Nevada?

A Nevada State Contractors Board C-21 license, usually subclassification C-21b Air-conditioning (NAC 624.380).

Can a C-21d maintenance contractor replace my whole AC unit?

Not a complete condenser assembly on a remote system or an air handler. C-21d covers parts such as compressors, motors, relays and coils (NAC 624.380).

Do I need a permit to replace my AC with the same size unit in Clark County?

Yes. Clark County says all change outs need a permit and a final inspection, even a 4 ton unit for a 4 ton unit.

Do I need a permit to change a furnace filter in Las Vegas?

No. The City of Las Vegas homeowner guide lists changing furnace filters and replacing minor parts that do not alter the equipment approval as work without a permit.

Do I need a permit to move a duct in Clark County?

Yes. Clark County says all relocation of duct work must be permitted and inspected, with the work left open until inspection.

Can a technician release refrigerant from my AC?

No. EPA rules under Clean Air Act Section 608 prohibit intentionally venting refrigerants while servicing or disposing of AC equipment.

Will Republic Services pick up a window AC with bulk trash?

No. Items containing Freon are not bulk items. Republic accepts window units up to 2 by 3 feet for a fee at the South Las Vegas and North Las Vegas transfer stations and the Apex and Laughlin landfills.

Do I need a permit for a window swamp cooler in Las Vegas?

Not for a portable window unit in the City of Las Vegas. Installing one in a new wall opening needs a permit.

How long can a dryer vent be in Clark County?

14 feet with up to two 90 degree elbows, minus 2 feet for each extra elbow, unless the dryer model allows longer (Clark County).

What is a DP on a Clark County inspection?

Disapproved with Penalty, given when a recalled inspection finds earlier corrections not done. The fee is $105.00 before more inspections can be scheduled.

How long does a Nevada landlord have to restore an essential service?

After written notice, 48 hours not counting weekends and legal holidays before the tenant remedies in NRS 118A.380 apply.

How do I check a HVAC contractor's license in Nevada?

Use the Nevada State Contractors Board Contractor License Search, or call the Board at (702) 486-1100. Licensed contractors must show their license number in all advertising (NRS 624.720).

Can a handyman do HVAC work in Nevada?

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).

What is the handyman limit in Nevada?

Repair or maintenance work worth less than $1,000 including labor and materials, with no building permit needed and not part of a $500 or larger project (NRS 624.031).

Is a contract with an unlicensed contractor valid in Nevada?

No. A bid or contract made without a required license is void from the start (NRS 624.700).

Does Nevada require a written contract for home repairs?

For a licensed contractor working on the single-family home you live in, yes. Since October 1, 2023, NRS 624.970 sets what the written contract must contain.

How much can a HVAC contractor ask for up front in Nevada?

For an owner-occupied single-family home, no more than $1,000 or 10 percent of the contract price, whichever is less, unless the contractor has a $100,000 consumer protection bond or Board relief (NRS 624.970).

How long do I have to file a Recovery Fund claim in Nevada?

Within 4 years after the work was completed (NRS 624.480).

How long do I have to complain about a contractor in Nevada?

4 years from the act or omission (NRS 624.331).

Can I cancel a contract signed at my door in Nevada?

For most sales of $25 or more made at your home, yes, by written notice until midnight of the third business day (NRS 598.230).

Can I do my own HVAC work in Las Vegas?

A homeowner improving their own home for their own occupancy is exempt from contractor licensing (NRS 624.031), but permits and inspections still apply.

Do I need a permit to replace an AC unit in unincorporated Clark County?

Clark County says every equipment change out needs a permit and an inspection of the final installation, even swapping a 4 ton unit for a 4 ton unit. Relocating or adding duct work in a single-family home also needs a permit, with the work left open until it is inspected.

Do I need a permit to replace an AC unit in the City of Las Vegas?

The City of Las Vegas lists heating, ventilation and air-conditioning exact change outs and repairs as an online permit with no plans. Other HVAC work needs plans submitted and reviewed.

Can I pull my own building permit in Henderson?

Henderson says that if you are the registered owner of the home and it is your primary residence, you may pull your own building permits. There are certain stipulations you must agree to before the permits are issued. This does not apply to rental or commercial properties, which need a licensed contractor of record.

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

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