Arizona HVAC Pros
Aerial view of a residential air conditioning condenser unit mounted on a concrete pad next to a house with vinyl siding and a sliding glass door.

AC Installation in Maricopa, AZ

A new air conditioner in Maricopa will run from April through October every year. Tell us about the house, and a licensed contractor who covers Pinal County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
Overhead view of an air conditioning condenser unit on a concrete pad next to a house with asphalt shingle roofing and vinyl siding.

Seven months of heat is hard on a new air conditioner

From April through October your air conditioner is working, and on summer afternoons it is doing that work against a 101°F average high. That is a long season and a high load, and the unit going in now needs to be sized and installed to carry it without running weak on the hottest days.

Any new central air conditioner installed today has to meet a federal minimum of 14.3 SEER2. That is the floor, not a guarantee of how it will hold up here. Pinal County has also logged 150 damaging wind events and 24 hail events over the past ten years, with hail up to 1.75 inches. The outdoor unit sits outside through all of that, so how it is installed and protected matters as much as the equipment itself.

7 months
April through October, your air conditioner is on duty
101°F
the average summer afternoon it cools against
24 hail events
in ten years, and hail bends the fins on outdoor coils
13.4 SEER2
the federal minimum any new unit must meet
Isometric line illustration of a cutaway single-story house showing interior rooms, ducted air handler, ceiling ductwork, and an outdoor condenser unit connected by refrigerant lines.
Your air conditioner works hardest from June through September.

NOAA nClimDiv, 1991–2020 normals

Overhead view of a gray outdoor AC condenser unit on a concrete pad beside a mulched garden bed and a house with vinyl siding.

A higher-efficiency unit would save about $40 a year to run in Pinal County compared with a new unit at the federal minimum.

  • A higher-efficiency unit$640 a year
  • A new unit at the federal minimum, 14.3 SEER2$680 a year

Estimates for a typical Pinal County home, from EIA household energy data, Arizona fuel prices and NOAA climate normals. Your home will differ.

Arizona requires HVAC contractors to hold a state license.

That license is issued by the Registrar of Contractors, and it belongs to the contractor rather than to any single job. It stays attached to them across every install they do, not just this one.

For an air conditioner install in Pinal County, that license is what stands behind the person doing the work. Most cities and counties here also require a permit for this kind of install, along with an inspection once the work is done, and that check is separate from the license, looking at the installation itself rather than the contractor's standing.

Sources: Arizona State Legislature · Arizona Registrar of Contractors

What size air conditioner does my house need?
There's no single answer without a load calculation on your actual house. A contractor works this out from your square footage, ceiling height, window placement and how much shade your walls get, not just square footage alone. Get this wrong and you either run short on a 101°F afternoon or the unit short cycles and never dries the air properly. Ask the contractor to show you the load calculation rather than just naming a tonnage.
Should I replace the whole system or just the outdoor unit?
In most cases both the outdoor unit and the indoor coil need to be replaced together. The coil and condenser are matched to work at a specific efficiency, and pairing a new condenser with an old coil usually means the system never reaches the rating it was built for. Since 2023, new central air conditioners have to meet a federal minimum of 14.3 SEER2, and an old coil often can't support that. A contractor can look at the age and condition of your indoor coil and tell you whether it's worth keeping.
Do HVAC contractors in Maricopa need a state license to work on my home?
Yes. Arizona requires HVAC contractors to hold a state license, issued by the Registrar of Contractors. Before hiring anyone, ask for their license number and check it against the Registrar's records. This matters here since homes need cooling from April through October, and a bad installation is not something you want to discover partway through those seven months.