Thinking about Insulating Your Garage?

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Depending on where you live, your garage may be too hot, too cold, or just never the right temperature for you. Insulating your garage is the solution to this problem, as it will help regulate the temperature and allow you to use your garage for a variety of new activities. Your garage can be used for so much more than storing your cars. 

Insulating your garage will not cost that much, if done correctly. There are some tools that you will need and several steps you need to take to get the job done. Some people think they need a professional to come and insulate their garage, but it is totally possible to get the job done on your own. Let’s take a look at the specifics. 

How Much Does It Cost to Insulate a Garage? 

Garage insulation varies due to the size of the garage and the cost of the insulation itself. Typically, this project will cost between 50 cents and $1.25 per square foot. This means that it will cost between $338 and $845 to insulate the average two-car garage. It is a relatively inexpensive project that has the potential to save you time and money in the long run. 

Tools and Material You Will Need 

To insulate your garage, you will need:

Mr. Pen- Hammer, 8oz, Small Hammer, Camping Hammer, Claw Hammer, Stubby Hammer, Tack Hammer, Hammers Tools, Small Hammer for Women, Nail Hammer, Magnetic Hammer, Handy Hammer, Teal Hammer, Kids Hammer


CRAFTSMAN Screwdriver Set, Assorted, 12-Piece (CMHT65044)

Screwdriver set

Titan 17005 2-Piece Stainless Steel Pry Bar Scraper Set, 7-1/4 x 9/16" and 9-1/4 x 9/16"

Pry bar 

Red Devil 0646 Masonry and Concrete Acrylic Sealant, Pack of 1, Gray

Masonry sealant

Newborn 930-GTD Drip-Free Smooth Hex Rod Cradle Caulking Gun with Gator Trigger Comfort Grip, 1/10 Gallon Cartridge, 10:1 Thrust Ratio

Caulking gun

Owens Corning 512 SQFT of R-38 Kraft Faced 24 by 48 Fiberglass Batt Fits 2X12's

Fiberglass batts

Silverlake Craft Foam Block - 7 Pack of 11x17x1 EPS Polystyrene Sheet for Crafting, Modeling, Art Projects and Floral Arrangements - Sculpting Panels for DIY School & Home Art Projects (7)

Rigid panel insulation 

beyond by BLACK+DECKER Utility Knife, Retractable, Quick Change Blade, 2-Pack (BDHT1039495APB)

Utility knife

1000sqft NASATECH (6 Mil Reinforced Scrim) White/Foil (Waterproof) Vapor Barrier 4ft x 250ft Encapsulation Pier Wrap Crawlspace (White/Foil) Solid Super Strong Reinforced Scrim

Vapor barrier 

Upholstery Staple Gun Heavy Duty, 4 in 1 Stapler Gun with 6000 Staples, Remover, Gloves, Manual Brad Nailer Power Adjustment Stapler Gun for Wood, Upholstery, Carpentry, Decoration DIY Staple Gun

Staple gun

#8 Self Drilling Drywall Plastic Anchors with Screws - No Pre Drill Hole Preparation Required - 75 Lbs

Drywall screws

These tools can be found at your local hardware store or online. They are all essential for completing an insulation project. The tools are relatively inexpensive, and it is the insulation itself that can be costly. When purchasing the actual insulation, you should look for fiberglass material. Fiberglass insulation is the best quality and will last the longest. Ask someone at your local hardware store to help you out if you have questions. 

Benefits Of Insulating a Garage

Reach Barrier 3009 Garage Door Insulation Kit

There are several benefits of insulating a garage. Some of them include: 

  1. Preventing air leakage
  2. Stopping heat transfer
  3. Saving energy costs
  4. Temperature regulation

If you live in a warm climate, then you understand how hot it can get in a garage. And when summertime comes, the heat gets even worse. Insulating your garage will help minimize this issue. The insulation will prevent the garage from overheating and will make the warm weather more bearable. While the insulation will not prevent all the heat from coming in, it will certainly give you some relief. 

Insulating any room in your home can help you save money on energy costs. This is especially true for garages because when this room gets hot, heat can seep into your home through the garage and affect the temperature inside your home. Typically, garages are right up against one side of a home, and that’s why it is so easy for heat to come through that wall. This can make your AC unit run even harder than it has to and spike your electricity bill. Insulation can minimize this issue altogether. 

Also Read: Best Ways to Keep Your Garage Cool

You Can Add Insulation Anywhere in Your Garage

Owens Corning R-13 Faced Insulation Roll

Insulation isn’t just for walls – you can install insulation to ceilings and doors as well. Of course, this depends on your garage setup and if you need heavy duty installation in these areas. If you are concerned about heat or cold getting through into your home, then insulating ceilings and doors isn’t a bad idea. If this insulation project is more for a cosmetic fix, you may not need to spend the extra time. It is totally up to you. 

Insulation Steps

Every insulation project is relatively the same. The steps of an insulation include:

  • Clearing the walls for the insulation
  • Sealing any cracks or gaps along the exterior wall
  • Install the insulation
  • Installing the drywall

It is vital that you seal cracks and crevices along the wall before installing the insulation. If you don’t complete this step in the process, installing the insulation and drywall overtop is almost pointless, because air and debris will still get through. While this may be a tedious part of the project, it is very important to complete. 

Also Read: How to soundproof a garage

Good Luck Insulating!

As you can see, you do not need a professional to complete your insulation project. You can absolutely tackle this project yourself and do a great job. Once you get the tools, you are all set to begin. Depending on the size of your garage, this project may only take a few hours to complete. If you have a bigger garage, it may take a day or two. Either way, after you finish this project, you will love your garage even more than you do now. 

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