Waterproofing basement walls typically involves applying a waterproof coating or sealant to the interior surface. Exterior waterproofing methods include installing drainage systems and waterproof membranes. Properly addressing wall cracks and ensuring effective drainage are also key factors.

To waterproof basement walls, apply a high-quality waterproof coating or sealant on the interior surface. For more robust protection, consider exterior waterproofing methods like drainage systems and membranes. Address any cracks in the walls and ensure proper drainage around the foundation to prevent water ingress.