Beyond Parking. Your Guide to Garage Insulation.

spray foam insulation air sealing garage insulation wall insulation

Homeowners would do well to insulate their garages. Doing so adds comfort and value to your home. It can also help with your energy savings.

There are no building requirements requiring you to insulate your garage. But even if you have a detached garage, insulating the walls and ceiling helps reduce any rapid temperature swings in the structure—and it can help protect your property.

HomeRx is a trusted name for providing premium residential insulation services. Are you looking for a company that specializes in retrofit insulation? Call us today for a free consultation.

Why Should I Insulate My Garage?

Cold weather can take its toll on any items with batteries, along with paints and other chemical-based products you might store in your garage. Insulation helps protect your valuables. Adding insulation that has a vapor barrier will help keep everything dry and mildew-free.

Here are some other benefits to consider:

Create a Comfortable Workspace

You may want to convert your garage into a rec room, workshop, or workout space. Insulating first will make the area much more comfortable.

Filter Out the Noise

Adding insulation in your garage blocks noise coming into your home—and gives you a quiet space if you want to escape a noisy household!

Increase Your Property Values

Insulating your attached garage can lower your heating and cooling bills. That’s an attractive selling point if you ever plan to put your home on the market.

What is the Best Garage Insulation?

When it comes to garage insulation, choosing the right type is crucial for comfort, energy efficiency, and protecting your belongings. At HomeRx, we offer a variety of garage insulation options tailored to meet your specific needs, whether your garage walls are finished or unfinished.

Insulating Unfinished Garage Walls

For garages with unfinished walls, you have several excellent insulation options:

  1. Spray Foam Insulation: Spray foam provides superior air sealing and the highest R-value per inch, making it an excellent choice for maximum energy efficiency. It expands to fill every nook and cranny, ensuring there are no gaps where air can escape or enter.

  2. Blow-In-Blanket System (BIBS): BIBS uses loose-fill fiberglass blown into netting, creating a dense and effective insulating layer. This method is particularly beneficial for garages, offering great thermal performance and sound control.

  3. Fiberglass Batt Insulation: Traditional fiberglass batts are a cost-effective and efficient option. They are easy to install and provide good thermal resistance, making them a popular choice for unfinished garage walls.

Insulating Finished Garage Walls

If your garage walls are already finished, HomeRx can still improve your insulation without the need for major renovations. The Drill-and-Fill Insulation method involves drilling small holes into the finished walls and filling the cavities with either fiberglass or cellulose insulation. This technique effectively enhances the insulation of your garage without compromising the existing wall structure.

  • Fiberglass Insulation: Blown-in fiberglass insulation provides a lightweight and effective solution for adding insulation to finished walls. It improves thermal performance and helps in soundproofing.

  • Cellulose Insulation: Made from recycled materials, cellulose insulation is an eco-friendly option that offers excellent thermal performance and fire resistance. It is densely packed into wall cavities, providing an effective barrier against heat loss and gain.

What Are the Best Areas to Insulate?

You can insulate all the walls, ceiling, and garage doors for the best results. Or, if you prefer, save money and time by only insulating the internal wall of your garage. Doing so will reduce any drafts from your garage into your living space—plus, it keeps heat from escaping your home in the winter months.

Our home energy audit can help you determine which areas of your garage are best suited for insulation. We can then work together to choose the best materials that fit your budget and accomplish your goals.

Why HomeRx for Your Garage Insulation Needs?

At HomeRx, we understand the unique insulation challenges that garages present. Our experienced team can assess your specific situation and recommend the best insulation solution for your garage. We prioritize quality and efficiency, ensuring that your garage insulation project is completed to the highest standards. Whether you need spray foam, BIBS, fiberglass, or cellulose, HomeRx has you covered.

Improve your garage’s comfort and energy efficiency with HomeRx’s expert garage insulation services. Contact us today for a consultation and take the first step towards a better-insulated garage.

Customer Reviews

In 2020, I bought small home in SW Portland, built in 1980. I did an extensive interior remodel at the time, but didn't do much structurally, as the building inspection had no big red flags. The attached garage had no insulation of any kind, and would get very cold in winer, and VERY hot in summer (southern exposure). This really mattered to me, as my garage doubles as my laundry room and work out room! I contacted HomeRx (after seeing tons of favorable reviews). Aaron came out to give me an estimate. There were some tricky things to work around in the garage. While he was there, he offered to take a look in my attic as well. Of course, he was trying to get additional business, but as it turns out, my attic insulation was far from ideal. He came back with a proposal for the garage that worked around all the quirkiness, and a proposal for the attic that included energy incentives to take a big chunk off the estimate. I decided to go ahead with both projects. Scheduling was about 2 weeks out. Christian and Edwin showed up on time and got started right away. The attic took about a day, and the garage another. The crew was professional, polite and competent. They did a great job cleaning up after what is very messy work. The first night with my new attic insulation, my heat never kicked on, even though the outside temperature got down to 48 degrees. Same thing the second night. And despite a chilly night, and a warm sunny day today, my garage is basically "room temperature." Of course I'm pleased to be saving energy and saving money, but I'm also thrilled with the new level of "livability" for my garage. I definitely recommend HomeRx for your insulation needs!

BARB KARLIN May 21, 2026

The guys did a very thorough job on insulting our garage attic. We noticed the difference in the temperature inside immediately!

william coulombe August 24, 2024

Our new home builder did not insulate an entire wall and both corners in our garage. This company was able to insulate all those areas making a significant difference in temperature. Very pleased with the results, the two workers professional and polite. They cleaned up the entire area also.

Paul McIntyre March 3, 2024

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