Arizona garages turn into ovens. A ductless mini split takes yours from unusable to a workable room during peak heat, without adding load to your home's central AC. SolarFIX sizes it, installs it, and can pair it with garage insulation so it actually delivers.
See how it works, step by step ↓The process
Size it right, keep the cool air in, install it cleanly, then test it. That's what makes a garage mini split efficient instead of a unit fighting a losing battle.
1. Indoor unit2. Compressor
3. Insulation
4. Install01 · Size
A quick consultation gets you the right BTU rating instead of a guess.
One-car, two-car or a bigger shop space all need different capacity.
An uninsulated garage needs more cooling than a sealed one.
Taller ceilings mean more air to cool.
A west-facing garage door in direct sun adds a lot of heat.
02 · Insulate
Without insulation, cool air leaks through the door and thin walls faster than the AC can replace it.
Tailored insulation for garage doors traps cool air inside.
Leaks around the door let hot air pour back in.
A sealed garage lets the unit cycle less and use less energy.
We often do insulation and the mini split together.
03 · Install
One outdoor compressor pairs with a wall-mounted indoor unit. No ductwork, no HVAC retrofit.
Mounted on the wall where it cools the space you actually use.
Set outside and connected by refrigerant lines and wiring.
High-voltage wiring done by trained technicians with the right tools.
When we handle the install, we take care of permitting where required.
04 · Cool
We run the system and confirm it's cooling before we leave.
Set the temperature for the garage on its own.
The same unit heats the garage in Arizona's cooler months.
Your central AC stops fighting heat from the shared wall.
Want it to run on sunshine? The Peak Cool solar mini split is $6,999 for a one-room system, installed with panels.
Homeowner guide
Why garages get so hot, how a mini split fixes it, and how to make it run on sunshine.
Garages in Arizona usually have no cooling. When Phoenix hits 120 degrees or more, an exhaust fan becomes a heat blower. That makes a workshop or project space almost impossible to use.
Benefits of garage air conditioning
Signs you need one
“The price was in budget and they were able to accommodate our roofer's schedule.”
Suzette L. · Google Review
“I highly recommend Solar Fix for their caring approach and top-notch service!”
Melissa D. · Google Review
“Very refined process in place here with lots of communication.”
Brian G. · Google Review
What we can help with
Garage air conditioning is more than comfort in the summer. It turns wasted square footage into a room you use all year.
Heating and cooling in one unit makes a garage workshop usable year-round, for car projects, woodworking or DIY.
Work out or work on your hobbies without fighting the summer heat.
Insulating the garage door traps cool air inside and cuts energy use. It makes the mini split pay off.
A mini split heat pump heats and cools in one compact unit, without adding to your home's existing HVAC.
Cooling the garage cuts the heat radiating through the shared wall, so the house AC works less.
The Peak Cool solar mini split runs on solar during the day. $6,999 for a one-room system, installed with panels.
See Peak CoolQuestions
A mini split is an HVAC system with an outdoor compressor and one or more indoor air handlers connected by refrigerant lines. It's ideal for a garage because it delivers efficient heating and cooling without ductwork. It's easy to install and cost-effective to run.
Yes, but insulation matters. Uninsulated or poorly sealed garages cause efficiency problems and higher run costs. We often pair mini split installs with garage insulation upgrades so the system actually delivers on its efficiency.
It depends on square footage, insulation level, ceiling height, and whether the garage gets direct afternoon sun. A quick consultation with our technicians gets you the right BTU rating instead of a guess.
Cost varies with unit size, install complexity, and any electrical or insulation work needed. Schedule a consultation and we'll give you an accurate estimate. If you want it to run on solar, the Peak Cool solar mini split is $6,999 for a one-room system, installed with panels.
Yes. A mini split heat pump heats as well as cools, in one compact, efficient unit. It's a cost-effective way to keep the garage comfortable through Arizona's cooler months without adding to your home's existing HVAC system.
More efficient. They allow zone control and skip the ductwork losses that hurt central systems. You cool the space you're using, not the empty attic above the ducts.
In our experience, the EG4 Series offers the best balance of performance, efficiency and reliability for typical 2-car garages in Arizona.
Usually a permit is needed, so check with your local building department. When we handle the install, we take care of permitting where required. We recommend against doing it yourself: mini splits involve high-voltage electrical work and refrigerant handling, both jobs that need trained technicians and proper tools.
The Peak Cool solar mini split runs on solar power during the day and switches to the grid on its own at night. It's $6,999 for a one-room system, installed with panels.
See the Peak Cool system →Call SolarFIX AZ at (602) 960-2091 or send a request. We install across Phoenix, Mesa, Tempe, Gilbert, Chandler, Peoria, Surprise and Glendale, and we'll size the right unit for your garage's square footage, insulation and sun exposure.
