Request a Free Waterproofing or Foundation Repair Estimate
Free homeowner estimates for basement waterproofing, foundation repair, crawl spaces, masonry, stucco, restoration, retaining walls & drainage repairs in NJ and Eastern PA
“Professional, responsive, and solved our basement water issue the right way.”
Tell Down Under Waterproofing what is happening at your property, and our team will help you schedule the right next step. We provide estimates for water intrusion, foundation cracks, crawl space moisture, masonry damage, stucco leaks, retaining wall concerns, Bilco doors, above-grade waterproofing, and construction restoration.
Since 2006, homeowners throughout New Jersey and Eastern Pennsylvania have trusted us for diagnosis-based recommendations, clear repair plans, and professional waterproofing and structural repair work.
Get a Job Estimate and Quote
Use the form below to request help from Down Under Waterproofing. The more detail you provide, the easier it is for our team to understand the issue and schedule the appropriate inspection or estimate.
Free Estimates for Homeowners
Estimates are provided to homeowners free of charge. We do not send high-pressure salesmen. Estimates are performed by experienced professionals, and when appropriate, may include drawings or input from structural engineers.
- NJ License #13VH03267600
- PA License #PA175894
- Serving New Jersey and Eastern Pennsylvania since 2006
- Open Monday through Saturday, 7:00 AM to 7:00 PM
- Free written estimates with clear recommendations
Prospective Buyer & Real Estate Transaction Policy
We cannot provide free estimates to prospective home buyers or participants in real estate transactions. These inspections are charged a fee of $1,000, refundable as a credit toward the contract if the prospective buyer purchases the home and has the work performed by Down Under Waterproofing.
For general questions that are not estimate requests, please use our general contact page.
Free Estimate Form
Complete the form below and our team will contact you to discuss your project and schedule the next step.
If the form does not load, call (908) 812-5040 or email support@duwaterproofing.com.
What to Include in Your Estimate Request
You do not need to know the exact cause of the problem before contacting us. A clear description of what you are seeing helps us understand whether the issue is related to water intrusion, foundation movement, drainage, crawl space moisture, masonry deterioration, exterior wall leaks, or structural damage.
Where the Problem Is Happening
Basement, crawl space, foundation wall, garage, exterior wall, retaining wall, steps, chimney, stucco area, Bilco door, or masonry section.
What You Are Seeing
Water, dampness, cracks, bowing, seepage, moldy odors, rotted wood, sagging floors, failed caulking, loose mortar, or drainage problems.
When It Happens
After heavy rain, during spring thaw, during every storm, only in one corner, when the sump pump runs, or all year long.
Helpful Details
Your town, photos if available through the form, best contact information, and whether this is your home or part of a real estate transaction.
What Happens After You Request an Estimate?
Our process is designed to help homeowners understand the cause of the problem before choosing a repair. The right solution depends on how water is entering, whether structural movement is involved, and what conditions around the home are contributing to the issue.
Submit the Form
Tell us what you are seeing and where the problem is happening.
We Contact You
Our team follows up to gather details and help schedule the next step.
Inspection or Evaluation
We evaluate the moisture, structural, drainage, or repair condition.
Clear Recommendation
You receive a written estimate with repair recommendations when appropriate.
Estimate Requests We Commonly Handle
Many properties need more than one type of repair. A wet basement may involve foundation cracks. Crawl space moisture may contribute to wood rot or sagging floors. Masonry or stucco damage may be tied to water intrusion, settlement, or exterior drainage.
Basement Waterproofing
French drains, sump pumps, wall seepage, floor leaks, hydrostatic pressure, drainage, and recurring basement water.
Explore Basement Waterproofing →Foundation Repair
Foundation cracks, bowed walls, settlement concerns, structural movement, and moisture-related foundation damage.
View Foundation Repair Services →Crawl Space Encapsulation
Moisture control, vapor barriers, odors, humidity, drainage support, and crawl space protection.
Learn About Crawl Space Encapsulation →Masonry Repair
Brick, block, mortar, steps, chimneys, walls, retaining walls, and masonry damage caused by water or movement.
View Masonry Repair Services →Stucco Repair
Cracked stucco, failed EIFS, exterior wall leaks, moisture entry, failed caulking, and wall system problems.
Review Stucco Repair Options →Above-Grade Waterproofing
Water entry through exterior walls, windows, doors, penetrations, coatings, caulking joints, and building envelope weak points.
See Above-Grade Waterproofing →Construction Restoration
Water damage, rotted wood, sagging floors, joists, sill plates, beams, columns, and damaged building components.
Explore Construction Restoration →Bilco Doors & Basement Entryways
Basement doors, thresholds, entryways, exterior access points, and water entry around basement openings.
View Basement Door Services →Retaining Walls
Retaining wall movement, drainage concerns, soil pressure, grading issues, and exterior structural water management.
View Retaining Wall Services →Why a Diagnosis-Based Estimate Matters
Waterproofing, foundation repair, crawl space work, masonry repair, stucco repair, and restoration all depend on the cause of the problem. A quote should not be based only on the visible symptom. The same basement leak may require a different solution depending on whether the water is coming from groundwater pressure, surface drainage, wall cracks, floor joints, exterior openings, or structural movement.
Water Source
We look at where water is entering and whether pressure, drainage, grading, or exterior conditions are contributing.
Structural Condition
We consider whether cracks, bowing, settlement, rotted framing, masonry damage, or support issues are part of the problem.
Long-Term Repair Plan
We recommend repairs designed to address the source, protect the property, and reduce the likelihood of recurring damage.
Helpful Resources Before You Request an Estimate
Ultimate Guide to Basement Waterproofing
Learn why basements leak, how water pressure develops, and what long-term waterproofing systems are designed to solve.
Read the Waterproofing Guide →French Drain vs. Sump Pump
Compare two common waterproofing solutions and learn why some basements need both drainage and pumping support.
Compare French Drains & Sump Pumps →10 Common Signs Your Home Needs Foundation Repair
Review warning signs that may point to cracks, settlement, movement, structural pressure, or moisture-related damage.
Review Foundation Warning Signs →Why Spring Is Dangerous for NJ & PA Basements
See how rain, thawing soil, and seasonal groundwater changes can reveal hidden basement and foundation problems.
Learn About Seasonal Water Risks →Frequently Asked Questions About Free Estimates
If you are dealing with basement water, foundation cracks, crawl space moisture, masonry damage, stucco leaks, retaining wall movement, rotted wood, sagging floors, or exterior water intrusion, Down Under Waterproofing can help you understand the cause and choose the right repair plan.
Request Your Free Homeowner Estimate
Use the form above or call Down Under Waterproofing to request help with basement waterproofing, foundation repair, crawl space encapsulation, masonry repair, stucco repair, above-grade waterproofing, restoration, retaining walls, or drainage-related repairs.
Licensed & Insured | NJ #13VH03267600 | PA #PA175894 | Monday through Saturday, 7:00 AM to 7:00 PM