Download Best Insulation for a Garage | Garage Insulation in CA
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What Is the Best Garage Insulation?

As we approach summer, cooling off in the pool and cooking out in the backyard are probably on your mind. But what about staying comfortable inside? After spending a fun day outdoors in the sun, you undoubtedly cherish the cool comfort of your air conditioned home—but not if your bills keep rising for seemingly no reason!

If this sounds familiar, you may need more insulation. The attic is a good place to start—but don’t overlook other areas of your house that could benefit from insulation, including the garage.

How to Insulate a Garage

According to the U.S. Department of Energy, all exterior walls, including unheated garages, should be insulated—and so should floors above cold spaces, such as unheated garages. When insulating floors above unconditioned garages, all possible sources of air leakage should be sealed. This also helps prevent contaminants (from car exhaust, paint, solvents, gardening supplies, etc.) in the garage from going into the conditioned living spaces. An air barrier should be installed as well to help prevent cold air in the garage from short circuiting the insulation under the subfloor.

What Is the Best Insulation for Garages?

Two materials often used for garage door insulation (ceilings, doors and floors) include:

  • Batt insulation: Batt insulation comes in pre-cut panels and is typically made of fiberglass. It’s one of the most common forms of insulation available.
  • Foam board: Frequently used in new construction projects, rigid foam insulation is an effective insulator and can help maximize energy efficiency.

These aren’t the only materials used to insulate garages and may not necessarily be the best solution for your home and garage space. Talk to a Gold Star Insulation professional about your specific project. We offer batt and blown-in insulation to meet a variety of needs.

Schedule Garage Insulation Installation in Sacramento, CA

Whether you want to transform the seldom-used garage into a studio or other space, insulate a newly built addition with a garage or it’s just drafty and uncomfortable in your house, insulation is vital. Insulating the garage help:

  • Lower home heating and cooling bills
  • Improve comfort in the garage
  • Allow for heating and cooling
  • Reduce outside noises
  • Enhance the interior space

Contact us today to start living more comfortably and saving money all year round!

Where should you insulate in your home? Check out our interactive infographic:

Products We Install
Energy Audits

Our team can help you save money with a home energy audit and air sealing services.


Our insulation team installs batt and blown-in fiberglass insulation.


Environmentally friendly and effective, cellulose works well in homes and buildings.

Spray Foam

Gold Star Insulation is a leading installer of spray foam insulation in the Sacramento area.

Radiant Barrier

An attic radiant barrier can help keep your home cooler and more comfortable.

Insulation Removal

Gold Star Insulation provides home insulation removal services.

Air Sealing

We are committed to saving you money by sealing your attic—which is the main source of air leaks in the home.

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