What basement waterproofing involves
Basement waterproofing stops water from entering below-grade space, or moves it out before it does damage. In Cortland, where snowmelt and spring rain can saturate soil quickly, the usual fixes are interior perimeter drains with a sump pump, exterior excavation with membrane coating, crack injection, and better surface grading and gutter discharge.
What to look for
Start with a written diagnosis that names the source of the water: wall cracks, floor-wall joint seepage, hydrostatic pressure, or a drainage problem outside. Ask for a clear scope, the pump make and capacity, a battery backup option, and warranty terms, including whether it transfers to a new owner. Get at least two quotes and be wary of any bid that skips an inspection.
How our scoring helps
We list 6 basement waterproofing businesses in Cortland and score them on public review feedback and service details. See the ranked guide to waterproofing companies for the full order, and read the methodology to see how scores are built. Use the ranking to shortlist, then compare quotes yourself.