Henderson, Nevada
AC replacement and installation in Henderson, Nevada
A new central system is the largest HVAC decision most homeowners make. This page walks through what goes into it, so the conversation with a contractor is easier.
Signs the conversation is due
No single age decides it. These are the situations that most often lead a homeowner in Henderson to ask for replacement pricing next to a repair price:
- The compressor has failed and the system is well along in years.
- Refrigerant has leaked more than once and the coil or lines keep needing work.
- Rooms upstairs stay several degrees warmer than the ground floor no matter the setting.
- The outdoor unit and the indoor coil were replaced at different times and never quite matched.
- Summer bills keep rising while the thermostat setting stays the same.
What a proper replacement includes
Ask each bidder to describe these items in writing. Bids that skip them are hard to compare.
- 01
A load calculation
Sizing comes from the house: wall and attic insulation, window area and which way it faces, duct runs, and how many people live there. Matching the old unit's size repeats any mistake made the first time.
- 02
A matched outdoor unit and indoor coil
The condenser and the coil above the furnace are designed as a pair. Replacing only the outdoor half can leave efficiency and reliability on the table, and some manufacturers expect a matched set.
- 03
A look at the ducts
Leaky or undersized ducts in a hot attic waste cooling before it reaches a room. A contractor can test static pressure and say whether the duct system suits the new equipment.
- 04
New line set or a plan for the old one
The copper refrigerant lines may be reusable or may need replacing, depending on their size, condition and the refrigerant the new system uses.
- 05
Electrical and drain work
A new disconnect, a correctly sized breaker, a secured condensate line and, in an attic, a drain pan with a safety switch.
- 06
Permit and inspection
Arranged by the contractor with the local building office (more below).
- 07
Start-up and a walk-through
Charge verified, airflow measured, and the thermostat set up with you present.
The license class matters on this job
Nevada's contractor rules draw a line that applies directly to replacement. Subclassification C-21b (air-conditioning) covers installing and servicing complete systems and their ductwork. Subclassification C-21d (maintenance) covers replacing parts of an existing system but specifically excludes replacing a complete condenser assembly on a split system, an air handler, or anything that changes the design (NAC 624.380).
So a company that holds only a maintenance license should not be quoting a full changeout. The Nevada State Contractors Board license search shows each license's classification.
Permits in Henderson and next door
Inside city limits, permits and inspections come from the City of Henderson Building and Fire Safety department, with applications made through the city's DSC Online system (Building and Fire Safety). Mechanical work follows the 2024 Uniform Mechanical Code with Southern Nevada amendments (Henderson mechanical code page).
The same department keeps permit records by address and lets you check permit history online. Looking up your address before you collect bids can tell you when the last system went in.
Outside the city the office changes. Unincorporated Clark County, which includes Paradise, Whitney and Enterprise, issues residential A/C and furnace changeouts as simple online permits, one appliance per permit (Clark County simple permits). Boulder City treats HVAC replacement as an express permit that needs no plans (Boulder City permit submittals).
Let the contractor pull the permit
Nevada's Residential Recovery Fund can help an owner-occupant of a single-family home who suffers a loss on a job done by a licensed residential contractor. The board's own page says a claimant is not eligible if the claimant pulled a building permit for the project as an owner-builder, and the fund does not cover unlicensed contractors at all (Residential Recovery Fund).
In practice that means the permit should be in the contractor's name, on a job inside its license classification and limit.
What moves the price
- 01
Capacity
Tonnage set by the load calculation. Bigger is not better; an oversized unit short-cycles and leaves the house clammy.
- 02
Efficiency rating
Higher-rated equipment costs more up front and less to run during a long cooling season.
- 03
Single-stage or variable speed
Variable-speed compressors and blowers run longer at lower output, which evens out upstairs and downstairs temperatures.
- 04
Where the indoor unit sits
An attic air handler takes more labor and safety equipment than a garage closet.
- 05
Duct and electrical changes
Resizing returns, sealing ducts or upgrading the circuit add to the job.
- 06
Furnace at the same time
If the gas furnace is also near the end of its life, doing both at once means one permit visit and one matched system. See furnace replacement.
Heat pumps as the replacement
Some households replace an air conditioner and gas furnace with a ducted heat pump plus a backup heat strip or a furnace kept for the coldest nights. Winters here are mild for the most part: late-December normal lows at the Las Vegas station are around 39 degrees (NWS December data). Whether that trade fits your house and bills is a question to put to the contractor.
Utility programs worth a look
NV Energy runs a residential program called PowerShift that includes a smart thermostat offer (PowerShift). Its summer bill insert suggests a cooling setting of 78°F and estimates about 3 percent savings on energy costs for each degree higher (NV Energy summer tips). Ask the contractor whether a new system qualifies for anything the utility is offering at the time.
Replacement questions
How long does a changeout take?
A straightforward swap with the same location and ducts is often a one-day job. Duct changes, an attic unit or electrical upgrades can stretch it. The contractor sets the schedule.
Do I have to replace the furnace too?
No, if the furnace is sound and its blower suits the new coil. The contractor checks that match.
Can the new unit go in the same spot?
Usually. Clearances around the condenser and the condition of the pad decide it.
How do I compare two bids?
Line them up item by item against the list above: size and how it was calculated, matched coil, line set, ducts, permit, start-up.
Where these facts come from
Referral notice
This site is a free service to assist homeowners in connecting with local service contractors. All contractors are independent and this site does not warrant or guarantee any work performed. It is the responsibility of the homeowner to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All persons depicted in a photo or video are actors or models and not contractors listed on this site.
Talk it through with an HVAC contractor
Say what the equipment is doing and how old it is. An independent contractor who works in Henderson, Nevada takes it from there.