A basement waterproofing quote should address the actual source of water, not just the symptom of a wet wall or floor.
What to look for
- Interior versus exterior waterproofing — interior drainage systems are cheaper but manage water rather than stopping it from entering; exterior excavation and sealing is more expensive but addresses the source directly.
- Sump pump included, if an interior drainage system is being installed — it's often a separate line item.
- Root cause identified — grading, gutter drainage, or hydrostatic pressure — rather than just "waterproofing coating applied."
- Warranty terms, since some waterproofing warranties are transferable at resale and some aren't.