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.
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

NOAA nClimDiv, 1991–2020 normals
A higher-efficiency unit would save about $40 a year to run in Pinal County compared with a new unit at the federal minimum.
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.


