Transform Your Basement with Spray Foam Insulation

Your basement plays a major role in your home’s comfort, air quality, and energy efficiency. Without proper insulation, it can become a source of drafts, moisture, and temperature imbalance. At Sealtite Insulation & Slabjacking, we specialize in spray foam insulation for basements, creating a sealed, comfortable, and energy-efficient environment that lasts.

Spray foam is ideal for basements because it expands to fill gaps and cracks, forming a continuous air and moisture barrier that prevents drafts, condensation, and mold growth—problems that are common in below-grade spaces.

Areas of the Basement We Insulate

Rim Joists

The rim joist (or band joist) is a common source of air leaks and energy loss. Spray foam seals these areas completely, stopping cold drafts and reducing energy waste.

Basement Walls

Insulating basement walls with spray foam creates a thermal and moisture barrier that helps regulate temperature, prevents condensation, and keeps your basement dry.

Ceilings and Floor Joists

Sound insulation applied to the basement ceiling or between floor joists helps reduce sound transfer to the living space above.

Benefits

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Improved comfort

Insulation reduces drafts and the chill often associated with basements.

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Moisture & Mold control

Proper insulation reduces condensation that leads to mold and mildew.

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Structural protection

Basement Insulation keeps pipes from freezing and stabilizes humidity levels.

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Sound Reduction

Damps noise between floors and from mechanical systems.

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Noise reduction

Helps block sound in other areas of the basement.

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Expanded living space

Even if your basement is unfinished, adding insulation makes the space much more inviting and usable.

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Increased home value

A well-insulated and finished basement can increase the market value of your home.

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Energy Efficiency

Reduces heat loss and lowers energy bills year-round.

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Better Air Quality

Stops drafts, allergens, mold spores and outdoor pollutants from entering your home.

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Frequently Asked Questions

What areas of the basement should be insulated?

Basement walls (interior or exterior), Rim joists (where the floor meets the wall), Basement floors (optional, for comfort or soundproofing)

Is it worth insulating an already partially finished basement?

Yes, especially around rim joists and exterior walls. Even a partially finished basement can benefit from improved insulation and air sealing.

Why is spray foam better than fiberglass in basements?

Spray foam provides an airtight and moisture-resistant seal—essential in basements where humidity and air leaks are common. Fiberglass can trap moisture and lose performance over time.

Should I insulate both the basement walls and rim joists?

Yes. Insulating both creates a continuous thermal envelope, improving comfort and preventing air and moisture intrusion from multiple points.

Can spray foam be applied directly to concrete walls?

Absolutely. Closed cell spray foam adheres directly to concrete or block walls, sealing and insulating in one step.

Does insulating my basement help the rest of the home?

Yes. A properly insulated basement reduces heat loss through the foundation, helping maintain more consistent temperatures throughout your home and eliminates the “chimney” or “stack” effect.

Is spray foam safe for finished basements?

Yes. Once cured, spray foam is inert and can be safely covered with drywall or other finishing materials.

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Why Choose Us?
The Sealtite Difference

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LIFETIME warranty on spray foam products.

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We use premium polyurethane products manufactured in the USA and offer a variety of products because every project and budget is unique.

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Over 20 years of experience and customer satisfaction; trained crews.

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Our high employee retention gives you installation crews with decades of experience.

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Integrity. Don’t take our word for it, check out our customer reviews.

Customer Reviews

Jayson Kessinger

Top quality product

“I had Sealtite do some spray foam on my basement walls. It turned out great. They also painted it white so it wouldn’t turn color. Whenever I need to have spray foam done again it will be Sealtite.”

Benton Kaeb

They care about the details

“I have worked with Sealtite for years both as a personal customer and as a project manager. And at every job Sealtite is the go to choice. I just had them spray foam closed cell foam on my basement remodel project where they carefully covered the floor, windows, pipes, sink, and electrical panels. They sprayed everything without missing spots, even the hard to reach frustrating spots that would have been easier to leave alone and hope a customer never saw. The thing about Sealtite is that they care: about the customer, the job site, cleanliness, and communication. The biggest of all when working with insulation: they care about the DETAILS. When insulating anything, the details matter: miss a tiny spot, now you have condensation. Forgot to put a vent chute in the right spot, now you have lower air flow. Forgot to tape or cover something, now you have a mess to cleanup. They are always watching out for the little things that other companies just simply miss and that is what sets them apart. So when their competitors bid seems like a better deal… It might be, but you will for sure get what you pay for and I would choose Sealtite every time.”

Mark Steffen

Highly recommend

“Our basement used to be cold and damp. Today, it is warm and dry. Sealtite Insulation did an outstanding job. We also had some sidewalk and driveway work done and are very happy with that job, too! Would highly recommend these guys.”