We were called to go out on a job in Grafton, MA. Someone listened to the commercial that said Flexseal could fix a leaking foundation. You remember that Flexseal advertises by putting a screen door on the bottom of a boat and spraying the product on it! Flexseal may solve that problem, but it certainly doesn't fix a leaking foundation.
We saw the can, and the homeowners said "yup, my dad came over and sprayed Flexseal on it, but it is leaking again."
We fixed the leaking foundation for them, but we have been seeing this more and more often with this advertisement. Flexseal is a liquid rubber supposedly, but it is not a polymer resin or a weave carbon fiber blanket that stops water from coming through.
sometimes DIY does not work the way we want it to. If you have a leaking foundation, contact A1 Foundation Crack Repair.