Ductless mini-split
Quiet and efficient, with heating too. The usual pick for garages used for more than storage. More →
Through-wall / window-style
Needs a wall opening. Simpler equipment, but often louder, and the wall opening leaks heat.
Portable units
No install, but limited capacity for a hot two-car garage. Best for spot cooling.
Evaporative coolers
Can work in dry weather with good ventilation, but they lose punch during monsoon humidity.
Picking the right one
- How many hours a day you'll be in there
- Whether the garage is insulated
- Noise (gyms and workshops differ)
- Whether you also want winter heat
FAQ
Can I just use a portable AC in the garage?
For a small, well-sealed space and short sessions, a portable unit can help. In a two-car garage at 115°F, most portable units struggle. Single-hose models also pull hot air in from outside.
Is a through-wall unit cheaper than a mini-split?
Equipment costs vary, and we don't quote prices. Ask local installers to price both options for your garage.
Can my house AC just be extended to the garage?
Extending house ductwork into a garage is generally discouraged, and it can raise code and air-quality concerns (garages hold car exhaust and fumes). Ask a licensed HVAC contractor what's allowed for your home.