How to Heat an Uninsulated Garage

Like most homeowners, your garage is an unfinished space you use to store tools and equipment or park your car. But if you’re using your garage as a workshop or live in a cold climate, you may need to heat it to make it comfortable. This blog post will show you how to heat an uninsulated garage without spending much money. Keep reading to learn more.

How to Heat an Uninsulated Garage

Summary: Heating an uninsulated garage can be a challenge, but there are several options available that can provide reliable warmth. One effective approach is to utilize an electric space heater, which is both affordable and easy to use. Another option is to invest in a propane or natural gas heater, which offers more powerful and consistent heat output. Also, insulating the garage can help reduce heat loss and improve efficiency.

What Causes a Garage to Be Cold?

Several factors can contribute to a cold garage. If your garage is attached to your house, the main culprit is likely to be poor insulation. Heat rises, so if there’s no insulation between your garage and your living space, the warm air will escape into the garage, making it cold. Another common cause of a cold garage is drafted.

Cracks and gaps in the door or walls can let cold air in, making it difficult to keep the space warm. If your garage is detached from your house, the problem is likely to be poor orientation. If the garage is situated so that it doesn’t get much sun, it will be harder to keep warm. The other main cause of a cold garage is air leaks.

If there are gaps and cracks in the door or walls, cold air can enter, making it difficult to keep the space warm. Additionally, if your garage has windows, they may not be properly sealed, allowing cold air to enter. Lastly, if you have a concrete floor, the cold can seep up through the cracks, making the space feel colder than it is.

Why Is It Important to Heat an Uninsulated Garage?

There are a few reasons why you may want to heat an uninsulated garage. First, if you use your garage as a workshop, you’ll need to be comfortable while you work. Additionally, if you live in a cold climate, your car will be more likely to start in the winter if it’s kept in a warm garage. Another reason to heat an uninsulated garage is to prevent pipes from freezing.

Prevent Pipes From Freezing

If the temperature in your garage gets too cold, the water in the pipes could freeze, causing them to burst. By keeping the garage warm, you can prevent this from happening. Finally, if you have any pets that spend time in the garage, they will be more comfortable if the space is heated.

Some Easy Ways How to Heat an Uninsulated Garage

1. Use a Space Heater

One of the simplest and most effective ways to heat an uninsulated garage is to use a space heater. Space heaters are designed to heat a small area, making them perfect for use in a garage.

There are a variety of space heaters to choose from, so be sure to select one that’s appropriate for the size of your garage. First, decide whether you want an electric or gas-powered space heater.

Electric space heaters are more expensive to operate but are also easier to use and maintain. Gas-powered space heaters are cheaper to operate, but they require more upkeep. If you choose a gas-powered space heater, be sure to have it serviced by a professional before using it. You’ll need a more powerful space heater if you have a large garage.

2. Insulate the Walls and Ceiling

If you want a more permanent solution to your cold garage, you’ll need to insulate the walls and ceiling. This will help to keep the heat in and the cold out.

Insulate the Walls and Ceiling

Insulating your garage will also make it more comfortable to work in and prevent your car from getting too cold in the winter. There are a few different ways to insulate your garage, so be sure to choose the one that’s right for you. Of course, you can always hire a professional if you’re unsure how to insulate your garage.

3. Install Weather-Stripping

Weather-stripping is a simple and effective way to keep your garage warmer. It works by creating a barrier between the outside air and the inside of your garage. You can purchase weather-stripping at most hardware stores. Be sure to measure the door or window before you buy the weather-stripping to ensure you get the right size.

To install weather-stripping, clean the surface where you’ll be attaching it. Next, apply a bead of adhesive to the weather-stripping and press it into place. Finally, use a utility knife to trim off any excess weather-stripping. If you have a door leading from your house to your garage, be sure to install weather-stripping around it as well.

4. Seal Cracks and Gaps

As we mentioned before, one of the main causes of a cold garage is air leaks. If there are cracks or gaps in the walls or doors, cold air can enter, making it difficult to keep the space warm. You’ll need to use caulk or expanding foam to seal cracks and gaps. First, use a putty knife to remove any old caulk or foam from the surface.

Next, apply a bead of caulk or foam to the crack or gap. Use your finger to smooth it out, and then allow it to dry. If you’re using expanding foam, be sure to wear gloves and a mask to protect yourself from the fumes. Once the caulk or foam is dry, you can paint over it if you’d like.

5. Park Your Car in the Garage

One of the easiest ways to keep your garage warm is to park your car in it. Your car’s engine will give off heat and help warm up the space. Consider parking your car in the driveway if you don’t have a garage or only use it for storage.

Try to park as close to the door leading into your house as possible. This will help to keep the heat in and the cold out. Avoid parking on grass or dirt, as this can cause your car to get cold.

 Avoid Parking on Grass or Dirt

6. Add a Rug

Another simple way to make your garage more comfortable is to add a rug. Rugs can help to warm up a cold floor and make it more comfortable to walk on. You can purchase rugs at most home goods stores. Be sure to choose a rug that’s durable and easy to clean, as it will probably get dirty quickly.

You can use double-sided tape or Velcro to keep your rug in place. First, clean the floor where you’ll be attaching the rug. Next, apply the tape or Velcro to the back of the rug. Finally, press the rug into place. You can also use a welcome mat or an old towel to help warm up your garage floor.

7. Bring in a Portable Heater

If you don’t have a garage or can’t park your car in it, you may need to bring in a portable heater. You can buy these at most hardware stores. They typically run on either propane or kerosene.

To use one of these, fill it up with the appropriate fuel and light it according to the instructions. Then aim the heater at your car. You may need to park it close to the heater so that the heat will reach your car. These heaters can get very hot, so be careful not to burn yourself.

8. Use a Fan

If you have a fan, you can use it to circulate warm air around your garage. This is especially helpful if you have a small space. Aim the fan towards the door or window to help push the warm air out. You can also use a box fan to create an air draft. To do this, place the fan in the window and point it outwards. This will help pull the warm air from the garage into your house.

You Can Also Use a Box Fan

Tips and Warnings on How to Heat an Uninsulated Garage


  1. Make sure to get your garage insulated. This will help keep the heat in and save you money on energy bills.
  2. If you have electric heat, make sure to use space heaters that are specifically designed for garages.
  3. Make sure to ventilate your garage properly to avoid dangerous fumes from building up.
  4. If you are using a gas heater, make sure it is vented to the outside to avoid Carbon Monoxide poisoning.
  5. Invest in a good quality thermostat to help regulate the temperature in your garage.


  1. Carbon Monoxide poisoning is dangerous when heating an uninsulated garage. Make sure to ventilate properly.
  2. Always follow the manufacturer’s instructions when using space heaters.
  3. Never leave a space heater unattended.
  4. Keep flammable materials away from your space heater.
  5. Make sure your garage is well-ventilated to avoid dangerous fumes from building up.
  6. Do not use a kitchen stove to heat your garage. This is a fire hazard.

You Can Check It Out Winterize Garage Door


So there you have it, some tips on how to heat an uninsulated garage. By following these tips, you can make your garage more comfortable and save money on energy bills. With a little effort, you can make your garage a warm and enjoyable place. If you have any other tips, feel free to share them in the comments below. Thanks for reading!

You Can Check It Out To How to Build a Carport Out of Steel Pipe

Photo of author

Rick Kelly

I am Rick. I grew up helping my dad with his handyman service. I learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, I'm still into fixing things- only now, I'm doing it for a living. I'm always looking for new ways to help people grow and develop. That's why I have created this blog to share all my experience and knowledge so that I can help people who are interested in DIY repair.

Leave a Comment