How much does AC replacement cost in Phoenix?

AC replacement cost in Phoenix averages $6,892, and most homeowners pay between $5,091 and $8,837, according to Angi’s Phoenix cost data. The full range Angi reports runs from $2,500 to $12,700. Where your quote lands depends mostly on the size of the unit, its efficiency rating, and how much work the job needs beyond swapping equipment.

What AC replacement costs in Phoenix by size

Air conditioners are sized in tons of cooling capacity, and larger homes need more of it. These are Angi’s Phoenix ranges by unit size. Angi lists labor separately, so confirm whether a quote you compare against these includes installation and both halves of the system:

• 2 tons: $3,000 to $6,000
• 3 tons: $3,500 to $7,000
• 4 tons: $4,000 to $8,000
• 5 tons: $4,500 to $9,000

By home size, Angi puts a 1,500-square-foot home at $3,000 to $7,000, a 2,000-square-foot home at $3,500 to $8,000, and a 3,000-square-foot home, which Angi pairs with 5 tons or more, at $9,000 to $12,700.

Square footage is only a starting point. ENERGY STAR advises that contractors size new equipment using the actual characteristics of your home, and warns that oversized equipment may cycle too often, leading to less comfort and a shorter lifespan. Bigger isn’t automatically better here; see what size AC a Phoenix home needs.

What pushes the price up or down

Efficiency is the second big lever. Angi’s Phoenix ranges by SEER rating:

• SEER 14 to 15: $2,500 to $7,000
• SEER 16 to 17: $3,000 to $8,000
• SEER 18 to 19: $3,500 to $9,000
• SEER 20 and up: $4,000 to $12,700

Angi’s tiers use the older SEER scale. A 14 SEER system can no longer be installed in Arizona; the minimum for most new split systems is 14.3 SEER2, about 15 SEER.

A more efficient unit costs more up front and saves more over time, so the payoff grows with the number of hours your system runs each year.

The rest of the bill comes from installation and the work around it. From Angi’s Phoenix data:

• Labor: $1,500 to $4,000 total. Pros commonly charge $80 to $150 an hour.
• Permit: Phoenix bases the fee on project value: $195 for the first $1,000, plus $12 for each additional $1,000, up to $10,000. On a $5,000 job, that works out to $243.
• Electrician: $164 to $567, if the new unit needs electrical work.
• Ductwork: Angi puts the average Phoenix duct replacement project at $893 (most between $447 and $1,587), but replacing the ducts in a whole small- to medium-sized home runs $2,000 to $5,000, and up to $9,000 for larger homes. Larger homes and ducts in hard-to-reach spots, such as attics, cost more.

Ducts are worth a look before you buy. ENERGY STAR notes that leaky ducts waste energy and can reduce airflow, and it recommends asking the contractor to inspect the ducts, run a leakage test, and make needed repairs.

Rebates that can lower the cost

SRP’s Cool Cash rebate applies to a new AC unit, heat pump, or mini-split. To qualify, the system needs a SEER2 rating of 15.2 or higher and must be installed by a contractor licensed in Arizona to install residential air conditioning. On split central systems, both the indoor air handler and the outdoor condensing unit must be replaced, and single-stage systems require a Manual J load calculation with the application. The rebate must be submitted within 6 months of installation. See SRP AC rebates for how the program works.

APS ended its AC rebate, and the duct sealing rebate that ran through it, so APS customers shouldn’t build a utility rebate into the price. The federal energy-efficiency tax credit (25C) also ended for equipment installed after December 31, 2025.

Before you sign a quote

A replacement is a large purchase, so get more than one written quote and compare them line by line. A gap between two quotes may come down to whether one includes ductwork or electrical work and the other doesn’t.

Ask each contractor for:

• The size (tonnage) and efficiency rating of the unit, and how they calculated the size
• Whether the quote replaces both the outdoor unit and the indoor coil or air handler
• Whether the permit, electrical work, and removal of the old unit are included
• Whether they will test the ducts for leaks and check refrigerant charge and airflow at startup
• The warranty on the equipment and on the labor
• Whether the system qualifies for your utility’s rebate, and who files the paperwork