Serving Homeowners Since 2006
Local experience solving waterproofing, foundation, drainage and structural problems throughout New Jersey and Eastern Pennsylvania.
Request a Free Waterproofing or Foundation Repair Estimate
Protect your home with an experienced local team serving New Jersey and Eastern Pennsylvania since 2006.
Water in your basement or crawl space? Foundation crack? Bowing or settling wall? Drainage or structural problem?
Tell us what you're experiencing and a member of the Down Under Waterproofing team will contact you about the next step.
✓ Free Estimates for Homeowners
✓ Licensed, Insured & Bonded
✓ Serving New Jersey & Eastern Pennsylvania
✓ Waterproofing, Foundation & Structural Specialists
Tell Us About Your Project
Problems We Can Help With
Not sure exactly what’s causing the problem? That’s okay. Tell us what you’re seeing and we’ll help determine the appropriate next step.
Basement Waterproofing
Water intrusion, French drains, sump pump systems and basement moisture problems.
Crawl Space Waterproofing
Waterproofing, encapsulation and moisture-control solutions.
Foundation Repair
Foundation cracks, bowing walls, settlement and stabilization.
Structural Repair
Underpinning, beams, joists and other structural support repairs.
Drainage Solutions
Exterior drainage, drywells and water-management solutions.
Masonry & Exterior Repairs
Masonry, stucco, Bilco doors and related exterior repairs.
Why Choose Down Under Waterproofing?
Honest, Straightforward Recommendations
We identify the source of the problem and recommend the appropriate long-term solution based on what your home actually needs.
Experienced With Complex Repairs
From basement water and foundation cracks to underpinning and structural repairs, our team handles challenging projects.
Licensed, Insured & Bonded
Fully licensed, insured and bonded for homeowner protection and peace of mind. NJ HIC #13VH03267600
PA HIC #PA175894
Trusted by Homeowners Across New Jersey and Eastern Pennsylvania
★★★★★ 5-Star Google Reviews
Crawl Space
★★★★★
“Looking forward to many years of a worry free crawlspace. Walt and his crew did a full waterproofing system and encapsulation. All aspects of the services were professionally done and communication was great. Cleaned things up so well you couldn’t even tell they were here.”
Kimberly Canzanella DeBaun
Google Review
Basement Waterproofing
★★★★★
“10/10 recommendation for Walt & his team. Walt arrived at my house shortly after I called him and gave me a thorough and fair plan of action on waterproofing my basement. Our project manager Max was highly professional and helpful; their crew kept the house clean and worked efficiently. Overall, an outstanding job.”
Brad Oldham
Google Review
Foundation & Exterior Project
★★★★★
“We hired Down Under Waterproofing for a large project in our basement and in our yard, which included everything from encapsulating the basement, repairing some foundation, adding a window well and moving our cellar door. Everyone was very communicative, helpful, and respectful. Prices were fair and the work is great & neat. I even overheard a town inspector complimenting their work.”
Alexandria Fazzari
Google Review
Flexible Financing Options Available
Larger waterproofing, foundation and structural projects can be unexpected. Financing options are available for qualified homeowners who would prefer to spread project costs over time.
Ready to Get Started?
Tell us about your waterproofing, foundation, crawl space, drainage or structural project and request your free homeowner estimate today.