Down Under Waterproofing | Honest Waterproofing Assessment
Down Under Waterproofing
🛡 Honest Assessment Guaranteed
🛡 Honest Waterproofing Experts

Water in Your Basement?
Get Honest Answers.

We’ll tell you exactly what’s going on — even if it’s not a waterproofing issue. No upsells. No unnecessary work. Just the truth.

Our Promise: If it’s not a waterproofing problem, we’ll tell you what it actually is and point you in the right direction — free of charge.

★ 4.9 Rating
77 Reviews
Local Central New Jersey & Eastern Pennsylvania
Assessments Available This Week

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We serve Central New Jersey & Eastern Pennsylvania

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We currently serve Central New Jersey & Eastern Pennsylvania. We’re expanding soon — check back or try another ZIP.

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🛡 You Qualify

Tell us about your situation

Step 1 of 714%

How urgent is your situation?

What type of property do you own?

Where are you noticing the water or moisture?

Waterproofing issues typically involve water coming up through the floor or in through walls. Ceiling leaks are usually a plumbing or roofing issue — but we’ll help you figure that out either way.

Did this appear after heavy rain?

This helps us narrow down the likely cause. Rain-related moisture often points to exterior drainage, while constant moisture may indicate groundwater or plumbing.

How long have you been dealing with this?

What is the property address?

So we can prepare for your on-site assessment

Almost done! Your contact info

So we can reach you to schedule your free assessment
100%
Honest Assessments
77+
5-Star Reviews
$0
For Your Assessment
0
Unnecessary Upsells
🛡 Why We’re Different

The Honest Difference

Most waterproofing companies sell you what makes them the most money. We tell you what you actually need.

The Typical Approach

  • Scare you into buying the most expensive system
  • Recommend work you don’t actually need
  • Won’t tell you if it’s NOT a waterproofing issue
  • High-pressure sales tactics
  • Commission-driven recommendations
VS
🛡

The Down Under Waterproofing Way

  • Diagnose the actual problem first
  • Only recommend work you truly need
  • Tell you if it’s plumbing, roofing, or grading — not waterproofing
  • Zero pressure — your decision, your timeline
  • Integrity-driven — we’d rather lose a sale than do unnecessary work
🔍 Common Issues

Not Sure What You’re Dealing With?

Here are the most common scenarios we see — and how we handle each one honestly.

💧

Water After Heavy Rain

Often caused by poor exterior drainage, clogged gutters, or grading issues. Sometimes it’s a simple fix that doesn’t require waterproofing at all.

We’ll tell you the truth
💨

Persistent Dampness

Constant moisture regardless of weather usually indicates groundwater pressure, foundation cracks, or failed vapor barriers. This is often a real waterproofing issue.

Likely waterproofing
🧸

Musty Smell / Mold

That musty basement smell means excess moisture is present. We’ll find the source — whether it’s a waterproofing issue, ventilation problem, or something else entirely.

Full diagnosis included
★ What You Get

Why Homeowners Trust Us

We’ve built our reputation on doing right by people — not doing the most work possible.

🛡

Honest Assessment

We’ll tell you the truth about your situation, even if it means we don’t get the job.

💰

No Unnecessary Work

We only recommend solutions you actually need. No padding, no extras, no upsells.

🏆

Highest Quality Work

When waterproofing IS the answer, we do it right the first time with the best materials.

🤝

Zero Pressure

Take your time. Get other quotes. We’re confident in our work and our pricing.

★ Reviews

What Homeowners Are Saying

Real reviews from real homeowners in Central New Jersey & Eastern Pennsylvania

★★★★★

“Walt and his foundation waterproofing and repair team did a wonderful job. They were able to complete the basement repair work, and the preventive measures were implemented to both areas. The work was done quickly, professionally, and with quality and great communication.”

J

Joe C.

Trenton

★★★★★

“One of the best experiences I’ve had with any contractor. They assessed the damage, provided me with multiple options, and executed the repair in a seamless fashion. They also appreciated that they kept everything tidy. I cannot recommend them enough!”

M

Monica M.

Freehold

★★★★★

“Walt is quick to respond and in a timely fashion provided a quote for foundation work that we needed. The crew was prompt, courteous and cleaned up as much as possible. This is the second time we’ve worked with them.”

R

Rebecca G.

Toms River

Our
100%
Guarantee

The Honest Assessment Guarantee

If we inspect your home and it’s not a waterproofing issue, we’ll tell you exactly what it is and what you should do about it — completely free. No strings. No catch. That’s our promise.

Free Assessment
Honest Diagnosis
No Obligation

Frequently Asked Questions

Yes, 100%. We’ll come to your home, inspect the situation, and give you an honest diagnosis — all at no cost and no obligation. Even if it turns out to not be a waterproofing issue, you won’t owe us a thing.
We’ll tell you exactly what we think it is — whether that’s a plumbing issue, a grading problem, gutter drainage, or something else. We’ll point you in the right direction so you don’t waste money solving the wrong problem.
Our reputation is built on honesty. We’d rather turn away a job than do unnecessary work. Check our reviews — you’ll see dozens of homeowners we’ve helped without ever doing waterproofing work.
We serve Central New Jersey & Eastern Pennsylvania and surrounding areas. Enter your ZIP code in the form above to check if we cover your area.
For emergencies, we prioritize same-day or next-day visits. For non-emergency assessments, we can usually schedule within a few days. After you submit the form, you’ll be able to pick a time that works for you.

Not Sure What’s Going On?
Let Us Find Out.

Whether it’s waterproofing or something else entirely, we’ll give you an honest answer — free of charge.

Serving Central New Jersey & Eastern Pennsylvania — limited assessment slots available

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