Exterior waterproofing is a more extensive approach, often recommended for severe water intrusion issues. This process involves excavating around the foundation to apply waterproof membranes and drainage systems. In 2025, exterior waterproofing costs range from $100 to $300 per linear foot. Depending on the size and accessibility of your basement, the total cost can vary significantly.
Additional Services and Costs
Foundation Crack Repair: Addressing foundation cracks is essential to prevent water infiltration. Repair costs typically involve a 6-foot section of exterior waterproofing and range between $1,600 and $2,600 per crack. Crack injection services are also available, costing between $750 and $1,400 per crack.
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Sump Pump Installation: Installing a sump pump helps in managing water accumulation in the basement. Basic sump pump replacement starts at $650, while a full system, including a new sump pit and battery backup, can cost up to $3,600.
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