A whole-house dehumidifier costs $1,100 to $3,500. The cost to install a dehumidifier in a basement or crawl space is $1,000 to $3,000.| HomeGuide
Sump pumps cost $600 to $2,500 with installation on average, depending on the type, size, and installation difficulty.| HomeGuide
Mold remediation costs $15 to $30 per square foot or $1,500 to $6,000 on average, depending on the location, size of the area, mold type, and extent of damage.| HomeGuide
Gutter installation costs $5 to $15 per linear foot on average, including the downspouts. The average cost to replace gutters is $750 to $2,300.| HomeGuide
A French drain costs $10 to $35 per linear foot or $500 to $8,800 on average for a yard or curtain drain. An interior basement French drain costs $4,000 to $17,000.| HomeGuide
A drainage system in a yard costs $1,000 to $4,000. Interior perimeter drain tile costs $4,000 to $12,000. French drain installation costs $10 to $25 per foot.| HomeGuide
Regrading a yard costs $500 – $1,000 for small lawns or $1,000 – $5,000 for a full backyard. Land leveling costs $0.40 – $2.00 per square foot to flatten a yard.| HomeGuide
Crawl space encapsulation costs $1,500 – $15,000. A vapor barrier costs $2 – $4 per square foot. Costs include a drainage system, insulation, repairs, and sealing.| HomeGuide