Options for Cooling Your Garage

Your garage is one of the most important part of your home especially when you use it as a workspace, event space, or a space to keep some valuable things, therefore, keeping it cool and comfortable is essential. A garage that is excessively hot is never pleasant whether you live in a hot climate all year round or you only experience high temperatures for a few months. That’s why installing a cooling system in your garage would be beneficial.

Benefits of Cooling Systems

There are several options to choose from when it comes to cooling a hot garage and the choice will depend on your local conditions. One of the benefits of using some type of cooling system in your garage is that it can maintain a moderate ambient temperature which will help you to get work done while avoiding being too hot. Also, if your garage has a constant temperature, it will help keep the materials stored there such as paint supplies, stable.

Check out the best ways to cool a garage with no windows at garagedeed.com.

Challenges with Garage Cooling

Though installing a cooling system in your garage is a good idea, there are some challenges you might face which can make it difficult to get an effective cooling system. Here are some of those challenges.

  • Lack of Insulation: Most of our garages are not insulated, therefore, the energy that will be used to cool the air will escape through the walls and garage door. Your cooling system might need to work harder in this case to achieve a cool temperature.
  • Lack of Ventilation Option: Air cooling systems such as portable air conditioning units are needed to be placed where they can vent the hot air cycles through the compressor such as a sliding glass window. However, most garages are built without windows, therefore, if you choose to install an air conditioning unit, it will require some drilling through the wall which is not a smart choice.
  • Open Spaces: Most of the garages today are often built with a lot of spaces. If this is the case, larger air cooling systems are needed to be able to keep the garage cool.
Where to Buy
SmartGARAGE- Reflective Garage Door Insulation Kit 2 car
AOD Retail Certified Insulation Kit-Residential Garage Door
One Way Window Film Non Adhesive Window Tint Privacy Mirror
Deconovo Room Darkening Thermal Insulated Blackout Grommet Window Curtain
BTU Check
NASA TECH White Reflective Foam Core 1 Car Garage Door Insulation Kit


Garage Cooling Options

There are many ways in which you can keep your garage at a cool and comfortable temperature. Here are some of the best options you can choose from.

1. Insulation

To keep your garage cool, it’s important to have proper insulation. The part of your garage that will require the most attention when it comes to insulation is the garage door. Here are some of the garage door types and the kind of insulation that fits them.

  • Steel Garage Doors: Any kind of insulation will fit steel garage doors. You can install rigid insulation on the door’s frame or place batting insulation around the corners.
  • Flat Garage Doors: If your garage door does not have panels, you can use reflective insulation or foam boards.
  • Wood Garage Doors: For wooden garage doors, the best type to use is rigid insulation.

Aside from garage doors, you can also put insulation to your garage windows. You can use window films, as well as blackout curtains for added insulation. Investing in energy efficient windows is a great idea, but if it’s out of your budget, the insulations mentioned above will work well for you.

2. Air Conditioning

Aside from a properly insulated garage, another way to keep the space cool is to install air conditioning units. There are many types of air conditioning units you can use in your garage and here are some of the best types.

  • Window AC: If your garage has windows, the window air conditioner with work best for you.
  • Mini Split Unit: If you want to go for a more energy efficient unit, choose a mini split unit.
  • Through-The-Wall Unit: If you want to install a permanent air conditioning unit in your garage, choose through-the-wall unit. This type of air conditioner is also energy efficient.

One of the challenges when choosing an air conditioning unit is what size to pick. To be able to determine the size of AC unit you need, using a BTU Calculator tool is helpful. You just need to enter the dimensions of your garage and it will automatically tell you the size of AC you need. 

Once you determine the size of AC you need, you’re now ready to shop for the unit. There are just three things you need to consider when buying an AC unit – the temperature range, the filters, and consider purchasing a commercial air conditioning unit. To help you, here are some of the best air conditioning units we found which you might like.

Where to Buy
Home Labs Window Mounted Air Conditioner
Pioneer Mini Split Air Conditioner
LG Through the Wall Air Conditioner
Maxx Air Wall Mount Fan, Commercial Grade for Garage
Air King 9718 18-Inch Industrial Grade Ceiling Mount Fan,Black
MaxxAir HVFF 20S REDUPS Shroud Floor Fan, 20-Inch, Red
hOmeLabs 4,500 Sq. Ft Energy Star Dehumidifier


This air conditioner is built for small hot rooms up to 150 square feet. It will be able to cool small garages within 10 minutes. It also uses reusable eco filter. It comes with AC kit that includes, filter, support bracket, side panel leaf covers, and window seal foam.

This mini split air conditioner features an ultra-high efficiency inverter and a ductless mini split heat pump system. Aside from cooling your garage, you can also use it to heat your garage during the winter season. 

This air conditioner features 3 cooling speeds and 3 fan speeds for more cooling flexibility. It can easily cool a room up to 530 square feet. It has a mesh filter that is easy to clean. This requires through the wall installation and it’s not suitable to be installed on windows.

3. Fans

Installing insulations and air conditioning units can be expensive. If you’re on a budget, the cheapest cooling solution for your garage you can go for is using fans. You can use two to three fans that you can place in different corners of your garage like by the window or on the wall, on the ceiling, and on the floor. However, fans will not be able to make the temperature cooler. They can only generate the air flow to provide relief from the heat.

4. Dehumidifier

If your area has high humidity, placing a dehumidifier in your garage will help remove moisture from the air. It will be able to make the temperature in your garage a bit lower.

We hope these options will be able to help you find the best cooling system for you to be able to work efficiently and comfortably in your garage.