Interior Waterproofing
Exterior Waterproofing
Masonry
Other servicesExterior Waterproofing Membrane in Levittown, NY
Stop Water Before It Reaches Your Foundation
Hear from Our Customers
Foundation Waterproofing Membrane Levittown NY
You’ll never worry about water damage again. Our exterior waterproofing membranes create an impenetrable barrier that stops moisture before it reaches your foundation walls, giving you the peace of mind that comes with a truly dry basement.
No more musty odors. No more anxiety during storms. No more watching puddles form on your basement floor.
The right exterior membrane system transforms your basement from a liability into usable space you can actually count on, protecting your home’s value and your family’s health for decades to come.
Levittown NY Exterior Membrane Waterproofing
We understand exactly what Levittown homes need. We’ve been solving water problems across Nassau and Suffolk Counties for over 25 years, and we know how your neighborhood’s post-war construction and Long Island’s high water table create unique challenges.
Most Levittown homes were built quickly in the 1940s and 50s using foundation techniques that weren’t designed for today’s moisture challenges. The sandy soil drains well but shifts over time, creating gaps where water finds its way through.
We’ve completed over 500 projects and earned more than 150 customer reviews because we understand these local conditions and use materials specifically rated for below-grade applications in high water table areas like yours.
Exterior Waterproofing Membrane Installation Process
First, we excavate around your foundation to expose the exterior walls completely. This lets us see exactly what we’re working with and identify any existing damage that needs attention before waterproofing.
Next, we clean and prepare the foundation surface, sealing any cracks with professional-grade materials designed for Long Island’s freeze-thaw cycles. Surface preparation is critical—shortcuts here lead to failures later.
Then we apply the exterior waterproofing membrane system. We use rubberized asphalt membranes that offer superior elongation and recovery, allowing your foundation to move with seasonal temperature changes without compromising the seal. The membrane creates a monolithic barrier with no seams or weak points where water can penetrate.
Finally, we install drainage systems and backfill with proper grading to direct water away from your foundation permanently.
Ready to get started?
Liquid Waterproofing Membrane Exterior Walls
Your exterior waterproofing membrane system includes professional-grade materials specifically chosen for Long Island conditions. We use rubberized asphalt membranes with less than 1% water absorption—well below industry standards—and resistance to the chemicals, fertilizers, and salt exposure common in our area.
The membrane system we install offers 1,000+ percent elongation and recovery, meaning it stretches and contracts with your foundation through seasonal changes without cracking or failing. It’s puncture-resistant with self-healing properties, so minor damage repairs itself.
For Levittown homes, this matters because your foundation faces unique stresses from shifting sandy soil and high water tables that overwhelm natural drainage during heavy rains. Our membrane systems are designed to handle ponded water for unlimited duration and can be applied even over damp surfaces—critical advantages for homes in your area where moisture is always a factor.
How long does exterior waterproofing membrane last in Levittown NY?
Professional-grade exterior waterproofing membranes installed correctly last for decades in Levittown conditions. The rubberized asphalt systems we use are designed for 20-30 years of performance, but many installations exceed that when properly maintained.
The key is using materials rated for below-grade applications and high water table conditions like we have on Long Island. Cheap spray-on solutions might last 2-3 years, while our professional systems protect your foundation for the long term.
Your membrane’s lifespan depends on proper installation and the quality of materials used. That’s why we use only professional-grade products specifically designed for Long Island’s challenging soil and moisture conditions.
What makes exterior membrane better than interior waterproofing?
Exterior waterproofing stops water before it reaches your foundation walls, while interior systems manage water that’s already gotten through. For Levittown homes dealing with high water tables and shifting soil, exterior protection is generally more effective long-term.
Think of it this way: exterior waterproofing prevents the problem, while interior waterproofing manages the problem. When you stop water at the source, you eliminate hydrostatic pressure against your foundation walls and prevent the moisture issues that lead to mold, structural damage, and indoor air quality problems.
Many Levittown homes benefit from a combination approach—exterior work on the worst areas and interior systems to handle any remaining moisture. We’ll assess your specific situation and recommend the most effective approach for your foundation and budget.
How much does exterior waterproofing membrane cost in Levittown?
Exterior waterproofing membrane installation in Levittown typically ranges from $5,000 to $15,000 depending on your foundation size, soil conditions, and the extent of work needed. For typical Long Island homes, 40 linear feet of foundation work costs $5,100 to $7,200.
The wide range depends on factors like basement size, severity of existing water problems, excavation requirements, and whether drainage systems need installation. Simple membrane application costs less, while comprehensive exterior work with drainage and grading adjustments costs more.
Remember that exterior waterproofing is an investment in preventing much more expensive foundation repairs and water damage down the road. We provide detailed estimates after inspecting your specific situation, so you know exactly what you’re getting and why it’s necessary.
Can exterior waterproofing membrane be installed in winter?
Yes, professional exterior waterproofing membranes can be installed during Long Island winters, but weather conditions affect the process. Hot-applied rubberized asphalt systems work in temperatures as low as 0°F, while liquid-applied membranes typically require temperatures above 20°F.
Winter installation requires careful temperature monitoring and may take longer due to curing times, but it’s definitely possible when done by experienced contractors with proper equipment. Some homeowners prefer winter installation because it addresses water problems before spring rains and snowmelt.
The key is working with contractors who understand how to handle materials and installation procedures in cold weather conditions. We’ve successfully completed exterior waterproofing projects throughout Long Island winters using proven techniques that ensure proper adhesion and long-term performance.
Will exterior membrane work with Levittown's sandy soil conditions?
Absolutely. Exterior waterproofing membranes are specifically designed to work with Long Island’s sandy soil conditions, and in many ways, sandy soil makes installation easier than heavy clay areas. The challenge with Levittown’s soil isn’t the sand itself—it’s how the soil shifts over time and how quickly heavy rains can overwhelm natural drainage.
Sandy soil drains well but can create gaps around foundations as it shifts with freeze-thaw cycles and moisture changes. Our membrane systems account for this movement with superior elongation properties that stretch and recover without breaking the seal.
We also install proper drainage systems and backfill techniques that work specifically with sandy soil conditions. The gravel backfill we use improves drainage around your foundation while providing stable support for the waterproofing system. This combination addresses both the immediate water intrusion problem and the long-term soil movement issues common in your neighborhood.
How do I know if my foundation needs exterior membrane?
Signs that your Levittown foundation needs exterior waterproofing include visible water intrusion, musty odors, foundation cracks wider than a quarter-inch, or white mineral deposits around cracks indicating ongoing water infiltration. If you see water stains on basement walls or notice moisture problems that get worse during heavy rains, exterior membrane installation is likely needed.
For homes built in the 1940s-50s like most Levittown houses, age is also a factor. Even good waterproofing from 50+ years ago has likely deteriorated and needs professional attention. The combination of older construction methods and local soil conditions means many foundations in your area require exterior protection.
The best way to know for sure is a professional inspection. We’ll assess your foundation’s condition, identify water sources, and explain exactly what’s needed to solve your moisture problems permanently. This inspection helps you understand whether exterior membrane work is necessary and what specific approach will work best for your home’s unique situation.
Local Resources
Useful Links
Other Services we provide in Levittown