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If you’re tired of battling ants, spiders, or mice sneaking into your home through hidden cracks, Great Stuff Pestblock Insulating Foam Sealant is your quick, reliable, and affordable solution.

If you’re tired of battling ants, spiders, or mice sneaking into your home through hidden cracks, Great Stuff Pestblock Insulating Foam Sealant is your quick, reliable, and affordable solution. This expanding foam sealant blocks bugs and small rodents from entering while also insulating your home against air leaks.

👉 Buy Great Stuff Pestblock for $10.97 on Amazon: https://amzn.to/475AYZc

Why Sealing Entry Points Matters

Even the smallest gaps—around pipes, vents, or siding—can serve as open doors for pests. When left unsealed, these tiny spaces can cause infestations, drafts, and moisture problems. Using a spray foam like Pestblock not only keeps insects and mice out but also helps maintain indoor temperature and reduce energy costs.

What Makes Great Stuff Pestblock So Effective

Special pest-resistant formula: Contains ingredients that naturally deter pests without toxic chemicals.
Expanding closed-cell foam: Fills cracks and gaps up to 1 inch wide, forming a tight, weather-resistant seal.
Long-lasting barrier: Once cured, it resists moisture, air infiltration, and pest intrusion year-round.
Easy DIY application: Comes with a straw applicator—no professional tools required.
Multi-surface adhesion: Bonds to wood, masonry, metal, glass, and most plastics.

For just $10.97, it’s one of the most cost-effective ways to protect your home from unwanted guests.

How to Use Great Stuff Pestblock (Step by Step)

Clean the area—remove dust, debris, or loose materials.
Shake the can well for at least 30 seconds.
Attach the straw applicator and point the nozzle toward the gap or crack.
Apply foam slowly—it expands as it cures, so a little goes a long way.
Allow to cure for 8–24 hours before trimming excess.
Paint or cover for a clean, finished look.

That’s it—no professional experience needed! You can seal multiple gaps around your foundation, attic, basement, and windows in just one afternoon.

Where to Use It

Around utility penetrations (pipes, cables, HVAC lines)
Basement wall gaps and sill plates
Attic openings and roof joints
Under sinks or behind appliances
Garage walls and door frames

Each can covers dozens of small cracks, making it ideal for seasonal pest-proofing.

Pro Tips for Best Results

Apply on dry surfaces for best adhesion.
Avoid overfilling—foam expands up to 3×.
Store upright at room temperature.
Trim and paint after full curing for a seamless finish.

The Smart Way to Keep Pests Out

Great Stuff Pestblock gives you professional-grade results in a simple, one-can system. It’s perfect for homeowners who want to tackle pest problems without hiring an exterminator or contractor.

Protect your home, save money, and enjoy peace of mind knowing your walls and gaps are completely sealed.