RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!

RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!
RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!

Key features

  • NO DRILLING REQUIRED – The low-pressure injection method eliminates the need for drilling.
  • HAIRLINE CRACKS – Low viscosity urethane is suitable even for the repair of hairline cracks.
  • NO NEED TO EXCAVATE – Save serious money by repairing the crack from the inside.
  • NO SPECIAL TOOLS REQUIRED – Use a standard caulking gun to inject.
  • PERMANENT - Prevents water seepage permanently!

RadonSeal DIY Concrete Foundation Crack Repair Kit (20-ft) - The Homeowner's Solution to Fixing Basement Wall Cracks Like The Pros!

List Price: $405.95$365.36DEALYou Save: $40.59 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection

Customer Reviews

Reviews sourced from verified Amazon purchasers
4.5
out of 5
Based on 10 reviews
5
60%
4
40%
3
0%
2
0%
1
0%
Did the job well.
Jim✓ Verified PurchaseAugust 10, 2023
A great way to fix the cracks in the poured basement walls. Have not had any of them leak in over a year and you can't even see there was a crack.
Awesome Stuff!
Tom✓ Verified PurchaseJuly 26, 2023
This product works amazing and the materials are very high end. I do have to say I am a pretty handy do it yourselfer and this was a time consuming moderately difficult task. I learned why the pros charge so much!
My project was a big task however so I bought (1) 20 ft kit and (1) 10ft kit. I had 30 feet of crack to cover with vertical and horizontal cracks on an old foundation with previous old attempts to repair. Watch the youtube video and read the instructions carefully. The mixed epoxy sets up in like 5 "“ 10 minutes so mix small amounts. Also the epoxy stinks. One of the jars smelled like sulfur so if you are sensitive you will want to wear a p100 or better mask. I had a window open with a fan blowing out so I had fresh air flowing. The kit does come with safety glasses and 2 pairs of gloves but I wore a more comfortable pair of safety glasses and working with the product I did get splash on them. Also have extra pairs of gloves and mixing trays ready and take the time to make sure your epoxy is spread perfect. I had everything on a covered table ready to go in sequence so I could be efficient. When filling the ports with foam - Pin holes would make the foam come out and it made it more time consuming to make sure I got the crack filled. The foam tube does seem to stop about 3/4 of the way in so it doesn't finish a tube like a caulking tube normally would. I still had enough for my project though. Clean up was easy but the epoxy breaks into sharp shards when removing the ports so have a vacuum ready and wear your safety equipment!
Really good with a few minor 'buts'
Michael Dunn✓ Verified PurchaseJuly 3, 2023
Product appears to be doing what it is supposed to despite some obvious user issues during my 'install'. Suggestions: use the gloves, it can get messy fast; take your time; press the gun slowly; double and triple check your fitting seals.

My order was missing a few things but I made it work. Order comes as two boxes. One box had 15 fittings, the other only 12. One box had a wire brush the other did not. One had gloves and the drop cloth the other did not. And no, not all missing items were the same box. I made it work but it might be an issue for some.

The two-part dries way fast so do what the videos say and only mix a small part. And the gloves, well, despite thinking I could do a clean job I have grey epoxy residue distributed across both hands post mineral spirit rub down.

I'll see if it works soon enough. Have had 4 inches of rain overnight so ...

17 Aug Update: Have had a number of really, REALLY heavy rains that have saturated the entire area and the walls are dry. Perfectly dry. Have to admit I am surprised. Happily!
This is a great product!
Amazon Customer✓ Verified PurchaseJune 30, 2023
I have repaired about 35' of crack in different areas of my basement. Some was great, worked just as designed. When I started the injection, took a couple minutes and would come out the port above, just worked my way up. On the last one, I didn't have that experience. It was a tight crack that the water didn't really work to test the ports. I know the ports weren't plugged. I put the pressure on and waited 5 minutes at each port before moving up.

We live in a River bottom area, so it doesn't take much water to cause an issue. Usually with about .3" of rain, I would get water through the crack. We had a good rain today. So far 1.2", not a drop through the repaired crack. The expansion really pushed its way to seal the crack. Take your time, follow the instructions, and I always let the tube of poly sit in hot tap water for 20-30 mins before using.
Just Not enough
MichaelM✓ Verified PurchaseJune 29, 2023
This is my second order out of necessity. The first four tubes were not enough for the single first 8-foot crack I had to seal. Crack was the thickness of a penny, I followed instructions to install the filler tubes and seal the cracks between them with no problems. The big issue is there is not enough sealant in the tubes to finish the job with four tubes. Four tubes are actually just two tubes in volume. Looking on the sides of the tubes through the "window" you can see they are about half full. A plunger/pusher takes up the rest of the tube. Each kit box comes with two pint-size stir sticks and four gloves. I had my own stock of them because for some reason, my messy mixing and one of the plastic tubes came loose during the application caused a leaking spill on the gloves. What did go into the cracks worked like it was supposed to. Just not enough to finish the job.
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