Hear from Our Customers
You’re tired of moving boxes every time rain’s in the forecast. That musty smell isn’t going away on its own, and the anxiety that comes with every storm shouldn’t be part of homeownership.
When your basement stays dry, you get your space back. No more ruined storage. No more mold concerns affecting your family’s health. No more wondering if this is the storm that finally floods your finished basement.
A proper waterproofing system handles what Pennsylvania weather throws at it—spring flooding from snowmelt, summer downpours, rising groundwater that sits below your foundation year-round. You shouldn’t have to think about your basement during every weather event. With the right system in place, you won’t.
We’re a family-run waterproofing contractor serving Harleysville, PA and the greater Montgomery County area for over 15 years. We’re not a national franchise that doesn’t understand your soil conditions or local water table issues.
Harleysville sits in an area where clay-heavy soil absorbs water slowly and groundwater levels fluctuate with every season. We’ve worked in enough basements around here to know that cookie-cutter solutions don’t work. Your home’s specific drainage issues require someone who’s seen them before.
We back our work with a lifetime transferable warranty because we install systems that last. Structural engineers recommend us, and we’ve completed thousands of installations across the Philadelphia region. You’re not getting a sales pitch from us—you’re getting an honest assessment and a solution that actually works.
First, we come out and look at your basement. Not a salesperson—someone who actually does the work. We’re checking for water entry points, evaluating your foundation walls, looking at grading around your home, and figuring out if you’re dealing with surface water or subsurface groundwater pressure.
Then we explain what’s happening and why. If you’ve got hydrostatic pressure pushing water through your foundation, we’ll tell you. If your problem is simpler—poor grading or clogged gutters—we’ll tell you that too. You’ll get a free estimate that breaks down exactly what we’re doing and why.
The installation itself depends on whether you need interior waterproofing, exterior waterproofing, or both. Interior systems involve installing a sub-floor drainage system and sump pump—it’s less invasive and you can stay in your house while we work. Exterior work means excavating around your foundation to apply waterproof membrane and install proper drainage. Most jobs take a few days, and we clean up when we’re done.
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Our interior waterproofing systems use sub-floor pressure relief technology—not outdated French drains that clog with sediment. Water gets channeled to a sump pump system that removes it before it ever reaches your basement floor. This handles the hydrostatic pressure that’s common in Harleysville because of how our groundwater behaves below the frost line.
For exterior waterproofing, we excavate down to your footer, apply waterproof membrane to your foundation walls, and install drainage systems that direct water away from your home. It’s more thorough than interior-only solutions, but it’s also more expensive. Sometimes you need both approaches depending on how severe your water intrusion is.
We also handle foundation crack repair, crawl space waterproofing, and sump pump installation or replacement. Pennsylvania’s freeze-thaw cycles cause foundation cracks that let water in—we seal those permanently. If you’re dealing with basement moisture problems from humidity rather than active leaks, we address that too with proper ventilation and dehumidification recommendations.
Every system comes with our lifetime transferable warranty. If you sell your house, the warranty goes with it—that’s valuable when buyers see you’ve had professional waterproofing done.
Most homeowners in Harleysville spend between $3,000 and $10,000 on basement waterproofing, but your actual cost depends on your specific situation. Interior waterproofing with a sump pump system typically runs on the lower end of that range. Exterior excavation and waterproofing costs more because of the labor involved in digging around your foundation.
If you’ve got multiple foundation cracks, poor drainage on several sides of your house, or you need both interior and exterior solutions, you’ll be toward the higher end. A straightforward interior drainage system for a modest basement might come in under $5,000.
We give you a free estimate after we’ve actually looked at your basement. You’ll know exactly what you’re paying for and why each component matters. There’s no point in guessing at a number before we understand what’s causing your water problems.
No. Interior waterproofing is non-invasive enough that you can stay in your house the entire time. We’re working in your basement, and while there’s noise and disruption, it’s not the kind of project that forces you out.
Most interior installations take two to four days depending on your basement size and the scope of work. You’ll want to clear out the areas where we’re working, but your daily routine stays mostly intact. We clean up at the end of each day.
Exterior waterproofing involves excavation equipment and more disruption to your yard, but you still don’t need to leave. The work happens outside, and while it’s louder and messier, it doesn’t make your home unlivable. We restore your landscaping when we’re finished.
Groundwater pressure is the most common cause around here. Harleysville sits in an area where the water table fluctuates seasonally—spring snowmelt and heavy rains raise groundwater levels, and that water pushes against your foundation from below. If your basement extends below the frost line (about three and a half feet in Pennsylvania), you’re dealing with groundwater that never freezes and constantly exerts pressure.
Clay-heavy soil makes it worse. Clay absorbs large amounts of water but releases it slowly, so the ground around your foundation stays saturated longer after storms. That sustained pressure finds any weakness in your foundation—cracks, gaps around pipes, porous concrete—and forces water through.
Surface water problems happen too. Poor grading that slopes toward your house, clogged gutters, or downspouts that dump water right next to your foundation all contribute. Often you’re dealing with both surface and subsurface issues at the same time, which is why a proper assessment matters before you start fixing things.
A properly installed interior drainage system can last decades without major maintenance. The sump pump itself might need replacement every 7-10 years depending on how hard it works, but the drainage channels and sub-floor system are built to last for the life of your home.
Exterior waterproofing membranes and drainage systems are similarly long-lasting when installed correctly. You’re looking at 20-30 years or more before you’d need to think about major work again. The key is proper installation—shortcuts during installation lead to premature failure.
That’s why we offer a lifetime transferable warranty on our work. We’re confident the systems we install will perform for as long as you own your home. Regular maintenance like checking your sump pump and keeping gutters clear helps, but the waterproofing system itself shouldn’t need replacement.
It depends on where your water is coming from and how severe the problem is. Interior waterproofing handles water that’s already made it to your foundation by channeling it away before it floods your basement. It’s less expensive, less invasive, and effective for managing groundwater pressure and minor seepage.
Exterior waterproofing stops water before it ever reaches your foundation walls. If you’ve got significant foundation cracks, deteriorating exterior waterproofing from when your house was built, or severe water intrusion, exterior work might be necessary. It’s more thorough but costs more because of excavation.
Sometimes you need both. If you’ve got active leaks through foundation cracks and groundwater pressure from below, an interior system alone won’t solve everything. We’ll tell you honestly what your situation requires after we’ve assessed your basement and foundation. There’s no point in overselling you on exterior work if interior will handle your problem.
Start with the simple stuff. If your gutters are clogged, your downspouts dump water next to your foundation, and your yard slopes toward your house, fix those first. Sometimes better surface drainage solves minor basement moisture problems without needing a full waterproofing system.
But if you’re getting water in your basement even with good gutters and proper grading, you’ve got a subsurface problem. That musty smell that won’t go away, water seeping through foundation cracks, or puddles that appear during heavy rain regardless of your drainage—those indicate you need professional waterproofing.
Call us for a free estimate if you’re not sure. We’ll look at your entire situation—gutters, grading, foundation condition, where water’s entering—and tell you what actually needs to be done. If you can solve it with better surface drainage, we’ll tell you that. If you need a waterproofing system, we’ll explain why and what it involves.
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