How Much Does Basement Waterproofing Cost?
Updated for 2024 — national average costs with state-by-state breakdowns
What Does Basement Waterproofing Include?
Basement waterproofing prevents water intrusion through foundation walls and floors. Methods include interior drainage systems, exterior excavation, sump pumps, and sealants.
The national average cost for basement waterproofing is $5,000 per project. Most homeowners pay between $2,000 and $10,000, though costs can vary significantly based on your location, the scope of work, and other factors outlined below.
What Affects the Price?
Method
Interior sealant: $500-$2,000. Interior drainage + sump: $3,000-$8,000. Exterior excavation: $8,000-$15,000
Sump Pump
New sump pump installation: $500-$1,200
Key Cost Factors
- ✓Waterproofing method
- ✓Severity of water issue
- ✓Basement size
- ✓Foundation type
- ✓Landscaping impact
💡 Tips to Save Money
- 1.Interior waterproofing is cheaper than exterior excavation
- 2.Fix grading and gutters first — many moisture issues are solved by directing water away from the foundation
- 3.Get a professional assessment before committing to expensive solutions
Basement Waterproofing Cost by State
Costs vary significantly by state due to labor rates, cost of living, and local market conditions. Click any state for a detailed breakdown.
| State | Low | Average | High |
|---|---|---|---|
| Alabama | $1,640 | $4,100 | $8,200 |
| Alaska | $2,560 | $6,400 | $12,800 |
| Arizona | $1,900 | $4,750 | $9,500 |
| Arkansas | $1,600 | $4,000 | $8,000 |
| California | $2,700 | $6,750 | $13,500 |
| Colorado | $2,160 | $5,400 | $10,800 |
| Connecticut | $2,440 | $6,100 | $12,200 |
| Delaware | $2,100 | $5,250 | $10,500 |
| Florida | $1,960 | $4,900 | $9,800 |
| Georgia | $1,800 | $4,500 | $9,000 |
| Hawaii | $2,840 | $7,100 | $14,200 |
| Idaho | $1,840 | $4,600 | $9,200 |
| Illinois | $2,100 | $5,250 | $10,500 |
| Indiana | $1,760 | $4,400 | $8,800 |
| Iowa | $1,720 | $4,300 | $8,600 |
| Kansas | $1,700 | $4,250 | $8,500 |
| Kentucky | $1,680 | $4,200 | $8,400 |
| Louisiana | $1,740 | $4,350 | $8,700 |
| Maine | $2,040 | $5,100 | $10,200 |
| Maryland | $2,300 | $5,750 | $11,500 |
| Massachusetts | $2,600 | $6,500 | $13,000 |
| Michigan | $1,840 | $4,600 | $9,200 |
| Minnesota | $2,040 | $5,100 | $10,200 |
| Mississippi | $1,560 | $3,900 | $7,800 |
| Missouri | $1,740 | $4,350 | $8,700 |
| Montana | $1,900 | $4,750 | $9,500 |
| Nebraska | $1,760 | $4,400 | $8,800 |
| Nevada | $2,040 | $5,100 | $10,200 |
| New Hampshire | $2,240 | $5,600 | $11,200 |
| New Jersey | $2,500 | $6,250 | $12,500 |
| New Mexico | $1,800 | $4,500 | $9,000 |
| New York | $2,640 | $6,600 | $13,200 |
| North Carolina | $1,800 | $4,500 | $9,000 |
| North Dakota | $1,800 | $4,500 | $9,000 |
| Ohio | $1,800 | $4,500 | $9,000 |
| Oklahoma | $1,660 | $4,150 | $8,300 |
| Oregon | $2,200 | $5,500 | $11,000 |
| Pennsylvania | $2,040 | $5,100 | $10,200 |
| Rhode Island | $2,300 | $5,750 | $11,500 |
| South Carolina | $1,740 | $4,350 | $8,700 |
| South Dakota | $1,700 | $4,250 | $8,500 |
| Tennessee | $1,720 | $4,300 | $8,600 |
| Texas | $1,860 | $4,650 | $9,300 |
| Utah | $1,900 | $4,750 | $9,500 |
| Vermont | $2,160 | $5,400 | $10,800 |
| Virginia | $2,100 | $5,250 | $10,500 |
| Washington | $2,300 | $5,750 | $11,500 |
| West Virginia | $1,600 | $4,000 | $8,000 |
| Wisconsin | $1,880 | $4,700 | $9,400 |
| Wyoming | $1,840 | $4,600 | $9,200 |
Frequently Asked Questions
Does basement waterproofing increase home value?
Yes. A dry basement protects the foundation and adds usable space, both of which increase value. It also prevents mold, which is a major health concern for buyers.