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Model # 11034540

Internet # 203282346

Store SKU # 650855

16 oz. Pestblock Insulating Foam Sealant

This item has been discontinued.
The Home Depot no longer carries this specific product.

$6.98 /each
  • Block bugs, critters, and pests; reduces air leaks in your home
  • Protects your home from "unwanted guests"
  • Air-sealing and insulating saves up to 20% on home energy costs


Model # 11034540

Internet # 203282346

Store SKU # 650855

GREAT STUFF Pestblock Insulating Foam Sealant blocks insects and pests from entering the home by sealing gaps, cracks and holes where they commonly enter. It expands to fill, seal and insulate gaps up to 1 in. (25mm), forming a long-lasting, airtight and water-resistant barrier. Pestblock Insulating Foam Sealant blocks the entry of pests that can damage the house and its contents while helping improve the home's energy efficiency by reducing air leaks.

  • Long lasting barrier seals out pests
  • Blocks ants, roaches, spiders, bees and mice
  • Seals entry points airtight, keeping pests outside the home, where they belong
  • Seal and save
  • Seal and save:

    great stuff insulating foam

  • Air Seal Checklist
  • How much do you need? Let our calculator help:

    Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Insulation Type 
Spray Foam 
Paintable / Stainable 
Product Weight (oz.) 
16 oz 
R Value 
Two Part 
Warranty / Certifications
ENERGY STAR Certified 
Fire Block Rated 
Warranty Information 


Rated 4.0 out of 5 by 70 reviewers.
Rated 5.0 out of 5.0 by Pestblock foam sealant Purchased Pestblock foam sealant to fill deep gaps between brick face and window tops, fascia boards, and edging. I recommend wearing gloves of some sort because the product is sticky; we wore disposable vinyl gloves and changed them out as we needed. Follow directions exactly. The foam expands when applied but also continues to expand for a good few minutes more as you fill other gaps. If you don't want the rounded front of the expanded foam, it can be gently pushed down after it has time to set. Foam is yellow-gold color when dry. We intend to paint the dried foam white to match the boards. Photo shows approximately a 1.5 inch high by 2.5 inch wide by 1.5 inch deep gap filled with Pestblock, patted down flush with brick and before painting. Has been installed over a month with no degradation or change in look. April 30, 2015
Rated 5.0 out of 5.0 by The Trick Is... This is an Excellent product.. Use it with a Wire mesh to keep Mice and Rats away!=D I used it and found a partially chewed Foam..seems like the rats unable to chew through the heavy gauge mesh, It was semi sealed in with the foam. Update-1year Later Sealant & Wire are still holding strong. Best Combo if you have heavy Big Vermin Trying to get In. December 20, 2014
Rated 5.0 out of 5.0 by great stuff for sure I have read the people who have had trouble with this or low expansion. This is not the largest expansion but I have had great luck with as it expands alot. I have filled holes way over the 1" that is recommended. If it comes out like silly string you either had it outside and it froze, or more likely you did not shake it enough. You have to very vigerously shake the can for about a minute to get best results. This also spreads the pest block material around more in the can to be more even. If you want a product that you can reuse the can get the pro stuff. You will be able to reuse the can and the nozzel if you clean it out after each use. October 14, 2013
Rated 5.0 out of 5.0 by Great for sealing in gaps behind kitchen cabinets This was very simple and easy to use. Very effective at filling in gaps. September 1, 2015
Rated 4.0 out of 5.0 by Works Great for Stopping Mice. My house has been invaded by mice. The exterminators (two different companies) came and laid down some traps. Zero captures for theme. I have exterminated 7. As for the foam, mice won't touch it. They get angry and move. The price is high. If you buy a case, a little discount would be nice. The foam is easy to remove from the floor or wall aft it drys but don't get it on your clothes or hands. It's a struggle to remove. Biggest complaint, the foam doesn't always stick to a vertical hole so I suggest checking all vertical cracks you fill. The application tube could also be longer. June 6, 2013
Rated 4.0 out of 5.0 by Great Concept This is a great concept that eliminates the need for stuffing holes with steel wool. However, there is a learning curve. I first watched videos on You Tube but still made a mess with my first pass. But at least the holes are closed. I have to re-watch the videos on how to clean up the mess and to use it again for the rest of the holes/gaps. I will definitely be purchasing more of the Foam Sealants to address all the gaps as I have a rodent problem and using this gets to even the tiniest hole that the critters can squeeze through. October 21, 2014
Rated 4.0 out of 5.0 by Great Stuff used it for a pesky woodpecker drilling 1 1/2 inch holes in the siding making a home. he moved on to another window so now i just keep filling the holes till he gets tired or dies. woodpeckers do not like this stuff August 17, 2015
Rated 4.0 out of 5.0 by PESTBLOCK FOAM SEALANT The product was ow I used to seal cracks on the wall and floor to stop ants from coming in the house. August 11, 2015
  • 2015-09-02T11:21:19.678-05:00
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