Rim Joist Spray Foam Insulation

Because Sealing Up This One Little Area is a No Brainer for the Added Comfort and Energy Savings it Provides

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Increase Comfort and Energy Efficiency in Your Home and Basement with Spray Foam in the Rim Joist

Most homes in Michigan have insufficient or no insulation in their rim joist causing cold outside air to easily enter the home around the foundation area.

Open cell spray foam expands 100 times to fill all the cracks and crevices in the rim joist. With a total air seal that other insulation materials can’t hold a stick to, spray foam in the rim joist is one of the most cost-efficient ways for homeowners to take control of the comfort and energy efficiency in their home and basement.


Four-minute video explaining all you need to know about foam insulation for your rim joist.

Updating a Rim Joist with Spray Foam Insulation is a Major Home Improvement for the Investment

Improving Your Home’s Performance Doesn’t Have to Be Difficult

The process of insulating a rim joist is quick and simple for homeowners who want to get started with comfort and energy-efficient updates or for the homeowner ready to retrofit the entire house with foam insulation.


Insulating Your Rim Joist with RetroFoam of Michigan

For over 17 years RetroFoam of Michigan has been insulating existing homes across Michigan’s lower peninsula.

Our consultative project managers, highly skilled crews, and helpful office staff have a mission to guide you through the whole process with ease, and we also offer a lifetime warranty on our product and workmanship.

If there is currently old fiberglass insulation in the rim joist, a crew will remove the old insulation and dispose of it so you don’t have to mess with it. They will then ensure any furniture or storage bins are cleared away from the basement walls. If necessary, the crew will then place plastic over the windows and any shelves and storage to make sure they don’t get overspray on them.

If we are also insulating your crawl space, the rim joist is included in that scope of work as well.

Our Start to Finish Process

  • Scheduling a Free Estimate
  • Creating a Personalized Plan for Your Project
  • Schedule, Prep, and Install your Insulation
  • Follow Up and Warranty

Learn More About Our Process


"Had the roof deck in my attic and rim joists done on my house by Bill and his crew. From start to finish these guys were nothing but the best/friendliest/most professional company out there. I was sold from the minute I got my initial estimate, and ultimately, in the end, everything was delivered as promised. Not sure what these guys are making, but whatever they are, they deserve a raise because they 100% deserve it."

Thomas Oleksiak

“I had RetroFoam do all my walls and rim joist Highly recommend them. The crew was prompt, professional, and cleaned up afterward. The customer service staff followed up with a call to make sure I was satisfied with the work. Thank you for the outstanding service."

Scott A.

Learn More About Spray Foam Insulation for Your Rim Joist

Frequently Asked Questions

Can spray foam in the rim joist help with moisture problems?

Will insulating the rim joist help with drafts around my floorboards?

Take the first step towards a more comfortable and energy efficient home.

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