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We’re Great Stuff Insulating, Foam Sealant Manufacturer

We provide innovative insulating foam solutions that seal gaps, enhance energy efficiency, and protect homes from air, moisture, and pests with ease and precision.

Our Sealants

Our Great Stuff products offer versatile, high-performance foam solutions designed to tackle various sealing, insulating, and protective applications with ease and efficiency.

Great Stuff Spray Foam

Provides an all-purpose solution for filling and sealing gaps of varying sizes to improve energy efficiency and structural integrity.

Great Stuff Window and Door

Designed for use around window and door frames, it provides a flexible seal that expands and contracts with temperature changes to prevent leaks.

Great Stuff Pond and Stone

Specially formulated to create durable, watertight seals around landscaping features like ponds, waterfalls, and stone structures.

Great Stuff Pestblock

Features pest-resistant properties to seal entry points, helping to keep rodents and insects at bay without the use of pesticides.

Great Stuff Wide Spray

Offers fast and efficient coverage for larger areas with an innovative shake-and-spray design, ideal for big projects.

Great Stuff Gaps and Cracks

Expands to seal gaps up to 1 inch, effectively reducing air infiltration and enhancing insulation around your home.

Great Stuff Insulating Bestsellers

Great Stuff Smart Dispenser Gaps & Cracks

The Great Stuff Smart Dispenser Gaps & Cracks sealant provides a versatile solution for sealing indoor and outdoor openings, offering easy application, quick curing, and up to 1-inch expansion to improve insulation.

Great Stuff Big Gap Filler Insulating Foam

The Great Stuff Big Gap Filler Insulating Foam delivers exceptional adhesion for sealing large interior or exterior gaps, offering quick curing, easy finishing, and the efficiency of up to 30 tubes of caulk in a single 20 oz. can.

Great Stuff Window and Door Insulating Foam

The Great Stuff Window and Door Insulating Foam Sealant quickly expands to seal gaps around windows and doors, enhancing energy efficiency and reducing air leaks to help lower energy bills by up to 30%.

Perfect Insulation

Why Customers Choose Great Stuff Insulating

Customers trust Great Stuff for reliable, innovative, and efficient solutions that improve energy efficiency and protect their homes.

Versatility Across Applications

Our foam sealants are designed to handle a variety of sealing needs, from small gaps to larger cracks, indoors or outdoors.

Energy Savings

By sealing gaps effectively, our products can help reduce energy costs by up to 30%, making homes more energy-efficient.

Easy to Use

With quick curing times and compatibility with various surfaces, our foam sealants are simple enough for DIYers yet effective for professionals.

Great Stuff Foam Company Values

We are committed to delivering quality and innovation while staying true to our core principles of sustainability and customer satisfaction.

Our Customers' Images

Great Stuff Insulating Foam Sealant

Great Stuff Insulating Spray Foam Sealant

Great Stuff Insulating Foam Sealant Fire Block

Great Stuff Outdoor Insulating Foam Sealant

Great Stuff Company Insights

We combine decades of expertise with a commitment to innovation, delivering trusted foam solutions that enhance energy efficiency and home protection.

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Great Stuff Insulating Reviews

Discover how Great Stuff has transformed homes and simplified sealing tasks for homeowners and professionals alike.

As an HVAC technician with over 15 years of experience, I’ve worked with countless sealants and insulating products, but Great Stuff Big Gap Filler is by far the best I’ve ever used for larger gaps. One recent job took me to an older home that had significant drafts coming from the basement. The rim joists were poorly insulated, and the gaps were letting in cold air, making the space almost uninhabitable. I grabbed a can of Great Stuff Big Gap Filler, and within minutes, it expanded perfectly to fill even the trickiest spaces. The adhesion was incredible—sticking solidly to both wood and concrete without any sagging. What amazed me the most was how fast it cured; in less than an hour, I was trimming it and moving on to the next area. I also appreciate that one 20 oz. can replaces what would have been multiple tubes of caulk, saving me time, effort, and money. My clients noticed an immediate difference, and I’ve since started recommending this product to fellow contractors. It’s reliable, efficient, and now a permanent part of my toolkit!
Jason McAllister
HVAC Technician
As a landscape designer specializing in custom outdoor water features, I rely on products that are both durable and aesthetically pleasing, and Great Stuff Pond and Stone exceeded my expectations on both fronts. I recently worked on a project involving a backyard waterfall feature, where creating watertight seals between the stones was a critical part of the design. This foam made the process effortless. It adhered perfectly to the uneven surfaces of the stones and quickly expanded to fill the gaps, creating a durable, watertight bond. What I love most is its natural, cream-colored finish—it blends seamlessly with the stones, so it doesn’t detract from the beauty of the feature. Over the weeks following the project, I was thrilled to see how well the foam held up against constant water exposure, fluctuating temperatures, and even some accidental scrapes during maintenance. My clients couldn’t stop raving about how professional and polished the waterfall looked. The precise control of the dispenser also allowed me to use the foam sparingly and effectively, which is a huge plus for larger projects. It’s now my go-to product for any outdoor sealing work.
Robert Ellsworth
Landscape Designer
I recently decided to tackle some long-overdue insulation projects in our 1950s home, and Great Stuff Window and Door Foam Sealant became my new best friend. I started with the gaps around our old window frames, which had been letting in drafts for years. I was a little intimidated at first since I’m not a professional, but the foam’s Smart Dispenser made application surprisingly easy. The foam expanded just enough to fill the cracks perfectly without bowing the window frames—a common issue I had worried about. Within minutes, the foam was tack-free, and by the end of the day, I could paint it to match our window trim. The results were incredible: not only did our living room feel warmer almost immediately, but after a month, we noticed a significant drop in our heating bills. My favorite part is how versatile this foam is—I ended up using it around our door frames and even in a few small cracks in the basement. It’s an affordable solution that delivers professional results, and I feel so much more confident in my DIY skills thanks to this product!
Linda Perkins
Homeowner and DIY Enthusiast

Do you need quality sealant?

Reach out to us today for a free consultation and personalized guidance on choosing the perfect Great Stuff product for your needs.