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Foundation Waterproofing Cost
Typical average cost to waterproof a foundation in Gaithersburg is about $6,400 (1,500 sq.ft. foundation)
Basement Waterproofing Cost
Average cost to waterproof a basement in Gaithersburg is around $3,840 - $6,400 (1,200 sq.ft. basement waterprofing using polyurethane sealant, interior sump pump, gutters and epoxy injection)