Ratings & Reviews for GREAT STUFF Pestblock 12-oz Smart dispenser Indoor Spray Foam Insulation Canister
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this pest-blocking foam for effectively sealing gaps and preventing insects and rodents, with many reporting dramatic reductions in ants, cockroaches, spiders, and mice. The reusable dispenser and precision nozzle are frequently highlighted as standout features, with users appreciating the ease of application and ability to trim and paint the cured foam. Most find it successfully fills cracks between one-eighth and one-quarter inch wide, creating airtight seals that eliminate drafts. A small number report dispenser clogging or inconsistent spray patterns, and a few note the foam appears cream-colored rather than gray. Despite minor drawbacks, most customers consider it highly effective and worth the investment.
Customer review summary generated by AI, including incentivized reviews.OK
Was a bit difficult to dispense, but seems to work OK
Verified Purchaser
Works as advertised!
Would RecommendHad used another brands “pest block” spray before. Found this one to be much better (and cheaper in price). Used in conjunction with steel wool to keep mice out. Beware: it’s super hard to get off bare skin once cured so WEAR GLOVES.
Verified Purchaser
Pretty good product
Very easy to use and dried pretty quick. It expands to act as a gap filler as well as bug stopper. I would use it again for sure. Make sure the temperature is right and shake it a lot.
Verified Purchaser
Seems fine, aside from the applicator breaking
Would RecommendAs described, don't know if it's effective for pests yet. Applicator broke during use.
Verified Purchaser
Ease of use
Would RecommendNozzle stops product from flowing when trigger is released
Verified Purchaser
Nice product
Would RecommendNice product, can be messy
Verified Purchaser
NOT GRAY color
Would Not RecommendIt is not grey at all. I can barely tell the difference between the normal straw color and this “gray”. Totally false description by the manufacturer.
Verified Purchaser
Does what it's supposed to do
Would RecommendEasy to use
Verified Purchaser
Works as it should
I like the spray tube that's included
Verified Purchaser
Great product
Would RecommendEasy to use. Make sure you wear gloves. So far no pests
Verified Purchaser
I dont have a crack anymore
Would RecommendI no longer have a crack in my foundation. Easy application.
Verified Purchaser
Make sure the bottle is upside down when using.
Would RecommendIt’s good because it doesn’t over expand.
Verified Purchaser
I LOVE THE GRAY FOAM
Would RecommendIt does what it is supposed to do…I like the gray foam…I liked that I was able to use it, and then days later, use it again - the applicator didn’t clog…
Verified Purchaser
Good expanding foam
Would RecommendEasy to use. Filled hole well
Verified Purchaser
I hate the whole line up
Would Not RecommendWhen the product can get out of the can, it's fine. That's the problem, it's an annoying game of ROULETTE every time. 1 in 4 cans usually works for me, and I waste 3 cans, can't return them, either. Also these don't last a summer. I have wood siding on my house and paved porch. There's about an inch gap, the foam I sprayed lasted 4 months until it was destroyed by the elements and local fauna.
Hello Abeyer, we apologize that our products did not meet your expectations. If you would like to reach out to us. Please do so at 866-583-2583 to di... Read More
06APR2026 MT1: We are sorry that our product didn't meet your expectations. Please reach out to us at 833-338-7668 so we can discuss your experie... Read More