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You stop worrying every time rain hits the forecast. Your shop-vac stays in the garage where it belongs. That musty smell disappears because moisture isn’t creeping through your foundation anymore.
Your basement becomes usable space again. Not just technically dry, but actually comfortable enough that you’d put furniture down there without second-guessing it.
The cracks stop spreading. Your foundation stops shifting. You’re not dealing with emergency water removal at 11 PM during a storm, and you’re not wondering if this is the year you’ll need to rip everything out and start over.
A proper waterproofing system does more than move water. It protects your home’s structural integrity, keeps mold from taking over your air quality, and stops small problems from becoming catastrophic ones. You get to stop reacting to water damage and start living in a home that handles Pennsylvania weather the way it should.
We’re a family-owned waterproofing contractor serving Lower Gwynedd and Montgomery County for over 15 years. We know what Pennsylvania groundwater does to foundations because we’ve seen it in hundreds of homes just like yours.
Lower Gwynedd sits in an area where seasonal flooding, snow melt, and clay-heavy soil create constant pressure on basement walls. We’ve worked in every neighborhood here, and we understand how water moves through this region.
You’re not getting a national franchise that trains crews in a week and moves on. You’re working with people who live here, who’ve built a reputation here, and who’ll still be here when you need us five years from now. We back our work with a lifetime transferable warranty because we’re confident in what we install and how we install it.
You call us. We schedule a free inspection at your home in Lower Gwynedd. No pressure, no gimmicks. We look at your basement, your foundation, your drainage situation, and we figure out where the water’s coming from.
Then we explain what’s actually happening and what it’ll take to fix it. You get options: interior systems, exterior waterproofing, or both depending on your situation and budget. We walk through pricing, timelines, and what the work involves so you can make an informed decision.
If you move forward, we schedule the installation. Most jobs take one to three days depending on scope. We install your system, test it, clean up the work area, and make sure you understand how everything operates.
After that, you’ve got a basement that handles water the right way. And if anything ever goes wrong with our work, the lifetime warranty covers it. You’re not managing this problem anymore because the system we installed is managing it for you.
Ready to get started?
Interior waterproofing means we install a sub-floor pressure relief system along your foundation walls. This isn’t an old-school French drain that clogs with sediment. It’s an engineered system that structural engineers recommend because it relieves hydrostatic pressure and channels water to a sump pump before it ever reaches your living space.
Exterior waterproofing involves excavating around your foundation, applying waterproof membrane, installing drainage board, and regrading to direct water away from your home. It’s more invasive and costs more, but it stops water at the source instead of managing it after it’s already pushing against your walls.
For Lower Gwynedd homes built in the 1960s through 1980s, we often see foundation walls that were never properly waterproofed during construction. The builders back then didn’t account for how much water this area gets or how the water table fluctuates. That’s why so many basements here leak during heavy rain or spring thaw.
We also handle crawl space encapsulation, foundation crack repair, and drainage system upgrades. Every home is different, and cookie-cutter solutions don’t work when you’re dealing with groundwater, soil composition, and decades-old construction methods. We assess your specific situation and recommend what’ll actually solve your problem long-term.
Interior waterproofing typically runs between $3,000 and $8,000 depending on your basement size and how much perimeter needs coverage. Exterior waterproofing costs more, usually $8,000 to $15,000 or higher, because it involves excavation, membrane application, and drainage installation around your foundation.
The price varies based on how accessible your foundation is, whether you need a sump pump installed, how many walls need treatment, and what kind of drainage improvements are necessary. A 1,200 square foot basement with one problem wall costs less than a full perimeter job on a 2,000 square foot basement with multiple entry points.
We give you transparent pricing after the inspection. No bait-and-switch, no hidden fees. You’ll know exactly what you’re paying for and why it costs what it costs. Some homeowners choose interior systems because they’re more affordable and less disruptive. Others invest in exterior waterproofing because they want to address the problem at the source and never think about it again.
Interior waterproofing manages water after it’s already reached your foundation. We install a drainage system along the inside perimeter of your basement that captures water and directs it to a sump pump, which then pumps it away from your home. It’s less expensive, less invasive, and highly effective for most basement water problems.
Exterior waterproofing stops water before it ever touches your foundation walls. We excavate around your home, apply waterproof coating to the exterior foundation, install drainage board, and add perimeter drains that redirect groundwater away from your house. It’s the most thorough approach, but it costs more and requires digging up your landscaping.
For most Lower Gwynedd homeowners dealing with typical basement seepage, interior systems work great. If you’ve got serious foundation cracks, bowing walls, or constant hydrostatic pressure, exterior waterproofing might be the better long-term investment. We’ll tell you honestly which approach makes sense for your situation and your budget.
Interior waterproofing usually takes one to two days for an average-sized basement. We’re breaking up a section of your basement floor along the perimeter, installing the drainage system and sump pump, then pouring new concrete. You can stay in your home during the work, though it’s loud and dusty while we’re cutting concrete.
Exterior waterproofing takes longer, typically three to five days depending on how much foundation perimeter needs treatment and how accessible your property is. We’re excavating around your home, which means heavy equipment, exposed foundation walls, and disrupted landscaping. Weather can delay exterior work since we can’t excavate in heavy rain.
Most jobs in Lower Gwynedd happen between April and November when ground conditions are workable. We schedule around your timeline and keep you updated throughout the process. Once we’re done, your system is operational immediately. You don’t need to wait weeks to see if it works—the next rainstorm will prove it.
Waterproofing prevents water intrusion, but foundation cracks need separate repair depending on what’s causing them. Small hairline cracks from normal settling can be sealed with epoxy or polyurethane injection as part of the waterproofing process. Larger cracks or horizontal cracks that indicate structural movement require more extensive foundation repair.
If your cracks are actively leaking, waterproofing addresses the water problem but doesn’t necessarily fix the structural issue. We assess every crack during the inspection to determine if it’s cosmetic, water-related, or structural. Sometimes installing a proper drainage system relieves enough hydrostatic pressure that cracks stop spreading. Other times you need foundation reinforcement before waterproofing makes sense.
Lower Gwynedd’s soil conditions create a lot of pressure on foundation walls, especially older homes where the original construction didn’t include proper drainage. We’ll tell you if your cracks are something to worry about or just normal aging. And if you need foundation work beyond waterproofing, we’ll explain what that involves and why it matters.
Yes. Every waterproofing system we install comes with a lifetime transferable warranty. That means if our system fails, we come back and fix it at no cost to you. And if you sell your home, the warranty transfers to the new owner, which adds value and peace of mind during the sale.
The warranty covers our workmanship and the performance of the system. If water gets through where it shouldn’t, we make it right. This isn’t a prorated warranty that loses value over time or a limited warranty with a dozen exclusions. It’s straightforward protection that lasts as long as you own the home.
We can offer this because we’re confident in what we install and how we install it. We’ve been doing this in the Delaware Valley for over 15 years, and we’re not going anywhere. You’re not dealing with a fly-by-night contractor who’ll be gone in two years. We’re local, we’re established, and we stand behind our work because our reputation depends on it.
Lower Gwynedd gets hit with heavy spring rains, snow melt, and seasonal storms that saturate the ground and raise the water table. When soil around your foundation becomes waterlogged, hydrostatic pressure builds up and pushes water through any weak point—cracks, mortar joints, floor-wall seams, or porous concrete.
Many homes here were built in the 60s, 70s, and 80s when builders didn’t waterproof foundations the way they do now. Add in clay-heavy soil that doesn’t drain well, gutters that dump water too close to the foundation, and aging sump pumps that can’t keep up, and you’ve got the perfect recipe for a wet basement.
Poor grading is another major factor. If your yard slopes toward your house instead of away from it, every rainstorm sends water straight to your foundation. We see this constantly in older Lower Gwynedd neighborhoods where landscaping has settled over the years. Fixing basement water problems usually means addressing multiple issues at once: drainage, waterproofing, grading, and sometimes sump pump upgrades. That’s why a proper inspection matters—you need to know what’s actually causing the problem before you can fix it permanently.
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