Arizona HVAC Pros
Overhead view of an outdoor AC condenser unit on a concrete pad next to a house with a dark shingle roof.

HVAC Installation in Maricopa, AZ

A new system here will heat from November through March and cool 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
Aerial view of a gray central air conditioning condenser unit on a concrete pad next to a house with vinyl siding.

A new system runs almost year round here

Maricopa asks for cooling from April through October, seven months of afternoons that average 101°F. The other five months, November through March, the system switches over to heat, working against winter lows that average 40°F. That is all twelve months with a job to do.

A new system has to be sized for both ends of that, not just the summer heat most people think about first. And with 61.4% of homes here heating with electricity, the condition of that system matters on the cold nights too, not just the hot ones.

5 months
November through March, your system heats
7 months
April through October, it cools
40°F
the average winter night it heats against
101°F
the average summer afternoon it cools against
Isometric cutaway illustration of a small house showing interior rooms, ductwork, an indoor air handler, and an outdoor condenser unit connected by lines, on a plain white background.
Your system heats November through March and cools April through October.

NOAA nClimDiv, 1991–2020 normals

Arizona requires HVAC contractors to hold a state license.

The license comes from the Arizona Registrar of Contractors, and it belongs to the contractor, not to any single job. It does not get reissued or rechecked for your installation specifically. It is the credential the contractor carries into every job they do.

For a heating and cooling installation, that license covers the contractor. What checks the work itself is the permit and inspection from your local building office. In most cities and counties, putting in a new furnace, air conditioner or heat pump needs both, a permit before the work starts and an inspection once it is done. That inspection is what confirms the new system was installed correctly, separate from what the state license covers.

Sources: Arizona State Legislature · Arizona Registrar of Contractors

When should I replace my HVAC system?
Replace it when repairs start costing you comfort or coming too often, not on a fixed schedule. A unit past 12 years old that needs a major repair, like a compressor or a heat exchanger, is usually better replaced than fixed. Rising bills with no clear cause is another sign the system is losing efficiency for good. In Maricopa your air conditioner runs hard from April through October, so a system that's already struggling early in that stretch is only going to get worse as it goes.
Should I replace my furnace and air conditioner at the same time?
If they're close in age, yes, it usually makes sense to replace both together. A furnace and air conditioner installed at the same time share a blower and a coil sized for each other, and replacing one but not the other can leave the new unit paired with a match it wasn't designed for. If your furnace still has years left in it, a contractor can replace just the air conditioner and set it up to work with what you have. Age and condition of each unit should drive the decision, not just convenience.
What happens during an HVAC installation?
The old equipment comes out first, then the new furnace, air conditioner or both go in, and everything gets connected, tested and checked before the crew leaves. That includes running new electrical connections if needed, setting the thermostat, checking refrigerant charge on an air conditioner, and confirming the system reaches the right temperature and cycles correctly. A load calculation for the house should happen before installation day, since a system sized wrong for the home won't heat or cool it properly no matter how well it's installed. A contractor can walk you through what your specific installation will involve.