Look for warning signs like musty odors, visible water stains on walls or floors, efflorescence (white chalky residue), peeling paint, mold or mildew growth, or water pooling after heavy rain. If you notice any of these, it's worth getting an inspection before the problem worsens.

Exterior waterproofing addresses the problem at its source by sealing the outside of the foundation walls and creating drainage away from the house. Interior waterproofing manages water that's already made it through, typically using drainage systems and sump pumps to redirect it. Many homes benefit from a combination of both, depending on the severity and cause of the leak.

Most residential jobs take anywhere from 1 to 5 days, depending on the size of the basement, the scope of work (interior vs exterior), and whether additional repairs like crack injections or sump pump installation are needed. Your contractor should give you a specific timeline after an on-site assessment.

Yes, a dry, usable basement is a strong selling point. It reduces the risk of mold and structural damage, which are red flags for buyers and inspectors, and it can open up the space for finished living areas, storage, or a home office.

Costs vary widely based on the method used, the size of the basement, and the extent of the damage, ranging from a few hundred dollars for minor crack sealing to several thousand for a full exterior excavation and drainage system. Most companies offer a free inspection and quote so you know exactly what you're working with before committing.