McCUTCHEON & SONS
PHOENIX HVAC & PLUMBING
in Arizona Heat?
(602) 837-3630
People hear the word “heat pump” and think of a machine built for cold places like Chicago or Boston. In Phoenix, the question runs the other way: will it actually keep a house cool when it’s 115 outside, and will it ever need to heat anything at all?
The answer surprises a lot of homeowners. In cooling mode, a heat pump is the same machine as a regular air conditioner. Same compressor, same refrigerant cycle, same SEER2 rating on the label. It cools a Phoenix summer exactly as well as a comparable AC, because it is one.
The only difference is that it can run the cycle in reverse. On the handful of nights Phoenix actually gets cold, it heats the house too. Whether that matters depends on your house, your rate plan, and how the rebates shake out this year.
A heat pump in cooling mode is just an air conditioner
Strip away the name and a heat pump is an AC unit with a reversing valve. For the six months of the year that Phoenix runs cooling, that valve stays in one position and the unit behaves exactly like the AC you already know. Modern units are rated to hold capacity at 110 to 115 degrees and beyond, the same as a high-efficiency central system.
That means the old fear, that a heat pump can’t handle an Arizona summer, is mostly outdated. What actually decides whether the house stays comfortable is the same thing that decides it for any AC: correct sizing, a clean condenser coil, and a correct refrigerant charge.
Where Phoenix is easier than most of the country
Heat pumps earn their reputation problems in cold climates, where they have to pull heat out of air that’s below freezing. Phoenix doesn’t have that problem. Our winter lows barely touch the 40s, which is a walk in the park for a heat pump.
The result is that a Phoenix heat pump rarely leans on its backup electric heat strips. It heats efficiently all winter, in the mildest heating season in the country. You get the full benefit of the technology without the northern caveats.
The efficiency is real, but read the fine print
A heat pump can move three to four units of heat for every unit of electricity it uses, which is where the “up to 400% efficient” numbers come from. Compared to old electric resistance heat, the savings are big. Some Phoenix homeowners report their combined gas and electric bill dropping from around $200 to $70 a month after a switch to a variable-speed heat pump.
The honest caveat: compared to a high-efficiency gas furnace, the heating savings in Phoenix are modest, because our heating season is short and mild. The real payoff comes from three places: efficient cooling, one system doing both jobs, and the incentives that are only on the table for a heat pump.
What a Phoenix heat pump costs in 2026
Installed prices run a wide range. A like-for-like swap lands around $8,000 to $12,000. A variable-speed system, or a full conversion, runs $16,000 to $22,000. Ductless versions start lower, in the mini-split range of $3,000 and up.
That spread is normal. The price moves on size, SEER2 rating, and whether the job is a straight swap or a full redesign of the ductwork and electrical. A straight answer with real numbers is the test of any quote, same as an AC replacement.
The rebates are the reason to do the math now
A heat pump is the one cooling choice that unlocks a stack of incentives a standard AC doesn’t qualify for:
- The federal 25C tax credit covers 30% of the installed cost, up to $2,000, for qualifying heat pumps, through 2032. A standard AC replacement gets nothing.
- Efficiency Arizona (HEAR) is the income-qualified state program, with rebates that can reach $14,000 depending on household income and project scope.
- SRP Cool Cash pays $250 to $1,125 on qualifying heat pumps through April 2027.
- APS equipment rebates ended January 1, 2026, so APS customers lean on the federal credit and any current offers.
Stack them and the premium a heat pump carries can disappear inside a season or two. The Department of Energy’s heat pump guide is the place to verify current numbers before you sign.
How to make sure it actually works at 115 degrees
A heat pump only performs as well as the install. Ask for a Manual J load calculation, not a guess based on your old unit. Look at the EER2 rating, which matters more than SEER2 in extreme heat. And pick a shop that services what it sells, because a heat pump in August is only as good as the person who shows up when it trips.
That’s where a family-owned shop has an edge. We’ve been sizing and installing cooling in the east valley since 1999, and we’ll tell you straight whether a heat pump or a conventional AC is the better buy for your house and your rate plan.
If that sounds like the company you’ve been searching for, we’re one call away.
McCutcheon & Sons is a family-owned and operated HVAC and plumbing company serving Phoenix and the east valley: Gilbert, Chandler, Mesa, Queen Creek, San Tan, Tempe, Maricopa, Scottsdale, and Fountain Hills. Since 1999, one name on the truck, the quote, and the door. Licensed #339149. No commissions, no hidden costs, guaranteed work.
McCutcheon & Sons Air Conditioning and Plumbing · (602) 837-3630 · mccutcheonandsons.com · AZ ROC License #339149