Most basement waterproofing projects cost between $2,500 and $15,000 per job, with a typical price near $6,000. Prices vary by state and city, so the range below is a planning guide rather than a quote.
Typical basement waterproofing cost
$2,500 – $15,000
per job · typical $6,000
A general planning range, not a quotation.
Basement waterproofing cost breakdown
- Interior sealant & paint$500 – $2,000typical $1,200
- Exterior excavation & drain$5,000 – $15,000typical $10,000
- Sump pump installation$1,500 – $4,000typical $2,500
What Basement Waterproofing costs
Covers sealing, drainage, sump pump installation, and foundation crack repairs. Pricing depends on the size of the basement, severity of the water issue, and whether you need interior or exterior work.
Costs by state
- Alabama
- Alaska
- Alberta
- Arizona
- Arkansas
- British Columbia
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Manitoba
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Brunswick
- New Hampshire
- New Jersey
- New Mexico
- New York
- Newfoundland and Labrador
- North Carolina
- North Dakota
- Northwest Territories
- Nova Scotia
- Nunavut
- Ohio
- Oklahoma
- Ontario
- Oregon
- Pennsylvania
- Prince Edward Island
- Quebec
- Rhode Island
- Saskatchewan
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
- Yukon
Frequently asked questions
How much does it cost to waterproof a basement?
Most homeowners spend $2,500–$15,000. Interior work is cheaper, exterior excavation is pricier. Get multiple quotes.
What factors affect the price?
Square footage, water source (groundwater vs. surface), existing damage, and whether you need excavation or just interior sealing.
Can I do it myself?
Basic sealing with waterproof paint costs under $500, but serious water issues need professional help to avoid future damage.