Before revision: Methods Several measures exist to prevent water from penetrating a basement foundation or to divert water that has penetrated a foundation: alt=French Drain|French drainInterior wall and floor sealers Interior water drainage Exterior drainage Exterior waterproofing coatings Box type waterproofing Foundation crack injections French drains Sump Pump Interior sealants In poured concrete foundations, cracks and pipe penetrations are the most common entry points for seepage.
After revision: Methods Several measures exist to prevent water from penetrating a basement foundation or to divert water that has penetrated a foundation: alt=French Drain|French drainInterior wall and floor sealersWaterproof Basement From the Inside Interior water drainage Exterior drainage Exterior waterproofing coatings Box type waterproofing Foundation crack injections French drains Sump Pump Interior sealants In poured concrete foundations, cracks and pipe penetrations are the most common entry points for seepage.