Water damage is one of the leading causes of structural deterioration in New Jersey homes. Heavy rainfall, rising groundwater, freeze–thaw cycles, and high humidity levels make waterproofing a necessity — not a luxury. At On Top Masonry & Construction, we provide complete interior and exterior waterproofing solutions designed to keep your home dry, safe, and structurally protected year-round.
Whether you’re experiencing basement leaks, foundation cracks, mold growth, damp walls, or water pooling around your home, our team offers professional waterproofing services backed by 20+ years of experience. We serve homeowners across all of New Jersey, delivering long-lasting solutions that prevent future water intrusion and safeguard your property.
New Jersey’s climate creates perfect conditions for water intrusion
Waterproofing isn’t optional — it’s the best way to protect your home’s structure, air quality, and value.
We tailor every waterproofing solution to your property’s unique needs, soil conditions, and level of water exposure.
Interior waterproofing stops water from entering your basement and diverts it away from your home. Our services include: Interior French drain installation, Sump pump systems, Moisture barriers, Wall sealants & epoxy coatings, Vapor barriers, and Water drainage channels. Ideal for homes experiencing basement leaks, dampness, or groundwater pressure.
Exterior waterproofing provides the strongest long-term protection by stopping water before it reaches your home. We install: Waterproof membranes, Drainage boards, Exterior French drains, Foundation crack sealing, Soil grading corrections. This solution protects your home at the source.
Cracks are the #1 entry point for water in New Jersey foundations. We use: Urethane injection for waterproofing. Epoxy injection for structural reinforcement. This permanently seals cracks and prevents water intrusion.
French drains are one of the most effective waterproofing systems for homes dealing with constant water intrusion or high groundwater levels. Benefits: Relieves hydrostatic pressure. Prevents water buildup. Directs water away from foundation walls. Available for both interior and exterior installations.
A sump pump is essential for basements in flood-prone areas or homes with rising groundwater. We offer: New sump pump installation, Battery backup systems, Sump pit installation, Pump replacement & maintenance. This system provides continuous protection during storms and heavy rain.
Crawl spaces often trap moisture, leading to mold, wood rot, and foul odors. We install: Vapor barriers, Dehumidification systems, Insulation upgrades, Moisture control solutions. A dry crawl space improves indoor air quality and energy efficiency.
We provide waterproofing services across the entire state, including
Wherever you are in New Jersey, we’re ready to help.
We don’t just stop water — we solve the root of the problem.
20+ years of waterproofing & structural repair experience
Interior & exterior waterproofing specialists
High-performance systems built for New Jersey homes
Honest inspections & transparent pricing
Licensed & insured professionals
Emergency service available
Call us immediately if you notice
These issues only get worse with time — early intervention saves thousands.
If your basement or foundation is showing signs of water damage, don’t wait — the problem will only grow.
