DIY Leaky Basement Wall Crack Repair Kit (20 ft.) with Removable Surface Seal-n-Peel for Homeowners - Repair Poured Concrete Foundation Wall Cracks, the Waterproofing Contractor&rsquo;s Preferred Solution Permanent solution. User friendly foundation crack repair application for DIY Homeowners. Surface Seal-n-Peel allows for easy removal of paste and ports from wall for a cleaner finish. Effectively stops water seepage from leaking foundation cracks. Prevents water from entering cracks. Inject into hairline cracks or up to 3/16 wide via a standard caulk gun from inside the basement. We are a pioneer of low pressure concrete crack repair dating back to 1987.