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don't let your home leak

Protect Your Rim Joists with Foam

Cold floors and high energy bills? Your rim joists could be the culprit—seal them with spray foam insulation for a warmer, more efficient home!

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Lock In Comfort, Keep Out Cold

Just below your floors lies an often-overlooked but critical part of your home—the rim joists. These small gaps may not seem like a big deal, but they’re a major source of heat loss, drafts, and cold floors. Without proper insulation, air leaks through, driving up energy costs and making your home less comfortable. The good news? Spray foam insulation is the perfect solution to seal and protect this space, keeping your home warmer and more energy-efficient year-round.

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Signs That Your Rim Joists Need Protection

There are a few telltale signs that signal the absence of proper rim joist protection:

• Heat Loss & Higher Energy Bills: Unsealed rim joists let in cold air, making your heating system work harder.
• Drafts & Cold Floors: Air infiltration from rim joists can create noticeable drafts and chilly floors.
• Pathway for Pests & Moisture: Gaps around rim joists can allow insects, rodents, and moisture into your home.

If any of these signs apply to you, then your home can benefit greatly from spray foam protection!

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Our 3-Step Rim Joist Protection Process

1

Schedule an Estimate

When you contact our team, we will send an estimator out to your home to review your rim joists and deliver you a quote.
2

Installation

On the day of our installation, we'll come in and apply high quality polyurethane spray foam to every nook and cranny of your rim joists.
3

Enjoy Proper Protection

After we leave you will be able to experience more even temperatures on your floors and proper protection throughout your basement and home.
Schedule an Estimate

Our Most Common Rim Joist Questions

There are a lot of questions about applying spray foam to rim joists, so we collected the most common questions we have for you to learn more about the process.

How does spray foam insulation compare to fiberglass for rim joists?

How long does it take to insulate rim joists with spray foam?

How much does it cost to insulate rim joists with spray foam?

Can I insulate my rim joists myself, or should I hire a professional?

Can insulating my rim joists help keep pests out?

What Our Customers Say

"We had both open cell and close cell installations. Rex, our salesman, was great and super easy to work with. Tara (in the office) also was really good at scheduling the appointment. The open cell crew (Joel, Chris, Alex and Manny) worked continuously to finish the job in one day. We are looking to have the walls of our 1920 home injected next year, now that we attic, rim joists in the basement and our pole barn finished. I won't need to shop around or get additional quotes. I'll just call Indiana Spray Foam. Their service, work and prices can't be beat!! Thank you!!"

- Todd C.