Home / Basement Waterproofing
Water in the basement, damp walls, or a musty smell. We'll match you with a local waterproofing contractor.
Are you a waterproofing contractor? Join our network →French drains and channels that move water to a sump.
New pumps, replacements, and battery backups.
Sealing damp or seeping basement walls.
Excavation and membranes outside the foundation.
Vapor barriers and moisture control.
Keeping basements dry year-round.
Describe it in the form above. Chances are we know someone.
We match homeowners with basement waterproofing pros throughout Camden and Gloucester counties. See all the towns we serve.
Typical ranges for common basement waterproofing jobs in South Jersey, so you know what to expect before you get a quote.
| Job | Typical range |
|---|---|
| Interior drainage system (typical basement) | $5,000 – $15,000 |
| Sump pump installation | $700 – $2,500 |
| Wall crack sealing | $400 – $1,500 per crack |
| Exterior waterproofing (excavation) | $10,000 – $30,000+ |
| Crawl space encapsulation | $5,000 – $15,000 |
| Basement dehumidifier installation | $1,000 – $2,800 |
What affects the price: The size of the basement, where the water is coming in, the method (interior drainage costs much less than digging outside), and whether there's existing damage.
Typical ranges for South Jersey as of 2026, based on published cost data for New Jersey and our area. A general guide, not a quote, and not from the contractors in our network. The details of your job, like its size, materials, and the condition of your home, can put your price above or below these ranges. Your contractor will give you an exact quote after seeing the job.
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Common causes are gutters dumping water next to the foundation, ground that slopes toward the house, cracks in the walls or floor, and water pressure in saturated soil. Fixing gutters and grading sometimes solves it; other times a drainage system is needed.
Interior drainage with a sump pump is the most common fix and costs much less, since no digging around the house is needed. Exterior waterproofing stops water at the wall but requires excavation.
If your basement gets water regularly or your area has a high water table, a sump pump is often part of the solution. A battery backup keeps it running during power outages, which is often when storms hit.
No. A dehumidifier controls dampness and musty smells, but it doesn't stop water coming in. If you see actual water, the source needs to be fixed.
It takes about a minute, and it's free.
We connect you with a licensed waterproofing contractor established in South Jersey.
Expect to hear back within 24 hours. You work out the details and pricing directly.
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