Basement Waterproofing in Trenton, Princeton & Mercer County, NJ
Trenton, Hamilton, Lawrence Township, Princeton, Pennington, Hopewell, Robbinsville, Bordentown and Hightstown: central Delaware Valley homes with old foundations and plenty of groundwater.
- Local, independent contractors
- Free referral service
- No obligation
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Enter your ZIP code or city in Trenton, Princeton & Mercer County.
Local know-how
Why basements leak in Trenton, Princeton & Mercer County
Trenton sits on the Delaware River at the edge of two very different landscapes: heavier clay and rock to the north and west, sandy Coastal Plain soils to the south and east. That change shows up in basements – clay areas push water through walls under pressure, while sandy areas see water rise from below.
Trenton’s rowhomes and older neighborhoods date to the city’s industrial peak around 1900, with brick and stone basements that were never truly watertight. The Assunpink Creek and the Delaware River have both caused serious flooding over the years.
Princeton, Lawrence and Hopewell have many older stone and early-20th-century homes near Stony Brook, the Millstone River and Carnegie Lake, while Robbinsville, Plainsboro and Hamilton’s newer neighborhoods typically deal with wall cracks and seepage in poured-concrete basements.
How it works
Get help in three simple steps
Just call and talk to a real person – no forms, no waiting.
- Call usTell a waterproofing specialist what is happening in your basement. It takes about two minutes.
- Get matchedYou are connected with an independent, local contractor who serves your ZIP code.
- Get your basement fixedThe contractor looks at your basement, explains your options and gives you a price. You decide – no obligation.
Services
Waterproofing services in Trenton, Princeton & Mercer County
Basement Waterproofing
Stop basement leaks for good.
Learn more →Sump Pump Installation
New sump pumps, replacements and battery backups installed by local contractors.
Learn more →Foundation Crack Repair
Leaking wall cracks, horizontal cracks and bowing basement walls: what they mean, how they are repaired and what it costs.
Learn more →Crawl Space Encapsulation
Damp, moldy or smelly crawl space? How crawl space encapsulation, drainage and dehumidifiers work and what they cost.
Learn more →French Drains & Yard Drainage
French drains, downspout extensions and grading keep water away from your foundation.
Learn more →Basement Mold & Humidity
Musty basement? Mold on walls or belongings? How moisture control, dehumidifiers and waterproofing stop basement mold from coming back.
Learn more →Service area
Communities we serve in Trenton, Princeton & Mercer County
Partner contractors take calls from throughout the Trenton and Princeton area, including:
- Allentown
- Belle Mead
- Bordentown
- Chesterfield
- Cookstown
- Cranbury
- Cream Ridge
- Florence
- Hightstown
- Hopewell
- Jackson
- Joint Base Mdl
- Kingston
- Lambertville
- Lawrence Township
- Millstone Township
- New Egypt
- Pennington
- Plainsboro
- Princeton
- Princeton Junction
- Ringoes
- Robbinsville
- Rocky Hill
- Roebling
- Roosevelt
- Skillman
- Stockton
- Titusville
- Trenton
- Windsor
- Wrightstown
Show all 67 ZIP codes served
08501, 08502, 08504, 08505, 08510, 08511, 08512, 08514, 08515, 08518, 08520, 08525, 08526, 08527, 08528, 08530, 08533, 08534, 08535, 08536, 08540, 08541, 08542, 08543, 08544, 08550, 08551, 08553, 08554, 08555, 08556, 08557, 08558, 08559, 08560, 08561, 08562, 08601, 08602, 08603, 08604, 08605, 08606, 08607, 08608, 08609, 08610, 08611, 08618, 08619, 08620, 08625, 08628, 08629, 08638, 08640, 08641, 08644, 08645, 08646, 08647, 08648, 08650, 08666, 08690, 08691, 08695
FAQ
Basement Waterproofing in Trenton, Princeton & Mercer County
Nearby service areas:
What does basement waterproofing cost in Mercer County?
Crack repairs start at a few hundred dollars, and a full interior drainage system with a sump pump typically costs $4,500–$11,000 depending on the home.
Can old Trenton rowhome basements be waterproofed?
Yes. Interior drainage, sump pumps and wall membranes are the most common solution for brick and stone rowhome basements.
How soon can someone come out?
Usually within a few days, often sooner for active leaks. Call and tell the specialist what you are seeing.
Wet basement in Trenton, Princeton & Mercer County?
Get connected with a local waterproofing contractor who knows homes in your area.
- Local, independent contractors
- Free referral service for homeowners
- No obligation to hire
One call connects you with a contractor who serves your area.