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Your cart is empty.FlashSeal is a quick effective and profitable flashing repair system that stops leaks from faulty or deteriorated flashing around chimneys, stacks and vents. Paint on .125in of FlashSeal, then place the reinforcement fabric over the base coat. Apply an .125in top coat and then you are finished. One gallon of FlashSeal covers 28-linear feet. This FlashSeal is available in black.
JHaen
Reviewed in the United States on January 19, 2025
I used this to patch up a chimney that had been leaking. I used this with the fiberglass tape. Overall, I think this looks better and cleaner than tar which had been previously used. It had been a couple of months in the sun and the color has stayed a deep black which I like. There was enough to do multiple coats on around the chimney. I'll update in spring/summer with how it lasted in a cold Wisconsin winter.
Don Siddle
Reviewed in Canada on March 30, 2024
Easy to install and creates a great seal.
Gina R.
Reviewed in the United States on October 26, 2024
Arrived fast and as shown. Used FlashSeal to seal flashing on new addition. It has fibers in it to help with adhesion. No issues and worked as needed!
k-dog
Reviewed in the United States on June 12, 2023
We had three leaks where our chimney met the roof line. Applied as directed and all three cracks/leaks are sealed. Using the fiberglass mesh tape is the way to go. Really makes the product stronger and I think will last for years. Oh yes, working from top to bottom helps seal everything and it bonded to both flashing and the brick.
Doc
Reviewed in the United States on May 16, 2022
This stuff worked as advertised. I had a leak on the inside of my chimney that no roofer wanted to touch. So I finally purchased this product(with the fabric tape) and applied it to the base of my chimney around the flashing. It worked great and no more leaks. Worth every penny and easy to use.
Nathan c.
Reviewed in Canada on April 23, 2022
the product came already hard in packaging and could not use this... was ready to fix roof then had to run and find a different product
Mark Lewellen
Reviewed in the United States on June 8, 2019
I ordered this product to repair a nagging chimney leak that I could not seem to remedy with roofing caulk. After the 3rd failure to fix the leak I ordered the Chimney Saver. After the first rain I didn’t encounter a single leak. Although time will tell the whole story I am so far impressed with this product. It was easy enough to apply and very easy to clean up. I bought the Flash Seal reinforcement mesh that is recommended with this product which also helped to create a nice thick layer around the bottom of the chimney. I used duct tape to make a clean application line around the base which worked like a champ. I had some left over so I sealed the top part of the chimney where the mortar was starting to crack. This stuff is a little pricey but it does the job. Saving the expense of calling a roofer was well worth it.Update: The Dallas area that I live in just got hit with a terrible storm that produced extremely high winds and copious amounts of rain. I am happy to report that the repair job on my chimney held up beautifully. Not one drop of water made it through. I now have to say that this product is battle tested, tried and true. This storm was one of the worst that I can remember in several decades so I would gladly tack on some more stars if I could.
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