Hear from Our Customers
You get your basement back. Not as a storage area for things you’re afraid to ruin, but as actual usable space.
You stop worrying every time the forecast calls for rain. You stop dealing with that musty smell that never quite goes away. You stop wondering if mold is growing behind your walls and what that’s doing to your family’s health.
The reality is this: Whitemarsh, PA gets its share of weather. Spring downpours, winter snowmelt, summer storms. All that water has to go somewhere, and if your basement isn’t properly protected, it’s coming inside. Once we install a basement waterproofing system that actually addresses the problem, you’re done fighting it. The water gets redirected before it ever becomes your problem. Your basement stays dry, your foundation stays protected, and you stop losing sleep over something that should’ve been handled years ago.
Del Val Basement Waterproofing is a family-run company that’s been handling basement water problems across Montgomery County for over 15 years. We’re not the biggest operation, and we’re not trying to be. We’re the team that shows up, figures out what’s actually causing your water issue, and fixes it right the first time.
We’re based in Plymouth Meeting, which means we know exactly what Whitemarsh homeowners deal with. The soil conditions, the older home construction, the way water moves through this area. That knowledge matters when you’re trying to keep a basement dry for the long haul. We back our work with a lifetime transferable warranty because we’re not interested in coming back to redo the same job. We’d rather do it right and move on to helping the next homeowner who’s tired of dealing with water where it doesn’t belong.
First, we come out and actually look at your basement. Not a sales pitch, just an assessment. We figure out where the water’s coming from, why it’s getting in, and what it’s going to take to stop it. You get a free estimate that breaks down exactly what we’re recommending and why.
If you decide to move forward, we schedule the work at a time that makes sense for you. Most jobs don’t require you to leave your house or disrupt your entire routine. We install our Sub Floor Pressure Relief System, which is what we use instead of outdated French drains that tend to fail over time. This system is recommended by structural engineers and has thousands of successful installations across the region. It relieves hydrostatic pressure before water can push through your foundation walls or floor.
Once the system is in, we test it, clean up, and walk you through what we did. Then you wait for the next rainstorm. That’s when you’ll really see the difference. No water, no stress, no problem. And if anything ever does come up, you’ve got a lifetime warranty that transfers if you sell the house. That’s the process. Simple, effective, and built to last.
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We handle both interior and exterior basement waterproofing in Whitemarsh, PA, depending on what your situation calls for. Interior systems are typically less invasive and work by managing water that’s already trying to get in. Exterior waterproofing involves excavating around your foundation to apply a waterproof barrier and install proper drainage. Both approaches work, it just depends on your home’s layout, the severity of the problem, and what makes the most sense for your budget.
Our Sub Floor Pressure Relief System is the core of what we install for most homes in this area. It’s designed specifically for the kind of soil and water table conditions you find around Whitemarsh. We’re also equipped to handle foundation crack repair, sump pump installation, crawl space encapsulation, and mold remediation if water damage has already started affecting your air quality.
Pennsylvania’s freeze-thaw cycles are tough on foundations. Water gets into small cracks, freezes, expands, and makes those cracks bigger. Over time, that leads to serious structural issues if it’s not addressed. A proper basement waterproofing system stops that cycle and protects your home’s value. You’re not just keeping water out. You’re preventing expensive foundation repairs down the road and keeping your home safe for your family.
Most homeowners in Whitemarsh, PA spend between $3,000 and $10,000 on basement waterproofing, but that range can shift depending on the size of your basement, the severity of the water problem, and whether you need interior or exterior work. Major foundation repairs or full perimeter waterproofing systems can push costs higher.
The cheapest option isn’t always the smartest one. If a company cuts corners on materials or installs a system that doesn’t actually address your specific water issue, you’ll end up paying twice. Once for the bad job, and again for the company that has to come fix it. We price our work fairly and we back it with a lifetime warranty, so you’re not gambling on whether it’ll hold up.
The best move is to get a few estimates, ask questions about what’s included, and make sure you understand what you’re actually paying for. We offer free estimates and we’ll walk you through exactly what we’re recommending and why it makes sense for your home.
Yes. Basement waterproofing is a non-invasive process that doesn’t usually require you to leave your home or change your daily routine. We’re working in your basement, not tearing apart your living space.
There will be some noise, and depending on the scope of the job, we might need access to certain areas for a few days. But you can still use your kitchen, sleep in your bedrooms, and go about your normal life. Most homeowners are surprised by how little disruption there actually is.
If we’re doing exterior waterproofing that involves excavation around your foundation, there will be equipment and activity outside your home. But again, that doesn’t mean you need to pack up and leave. We keep the work area contained, clean up at the end of each day, and make sure you’re informed about what’s happening and when. The goal is to fix your water problem without turning your life upside down in the process.
You’re risking your health, your home’s structure, and your property value. Unchecked moisture in your basement creates the perfect environment for mold and mildew, which can cause respiratory problems, trigger asthma and allergies, and make your home unsafe for anyone with a compromised immune system.
Water damage also attracts pests. Termites, carpenter ants, and other insects thrive in damp environments. Once they’re in, they can cause additional structural damage that compounds the problem. And if water is consistently getting into your basement, it’s putting pressure on your foundation. Over time, that pressure leads to cracks, shifting, and serious structural issues that are far more expensive to repair than waterproofing would’ve been in the first place.
From a financial standpoint, a wet basement kills your home’s resale value. Buyers either walk away or demand a significant price reduction to account for the problem they’ll have to fix. A dry, protected basement adds usable square footage and gives buyers confidence that the home has been maintained. Ignoring the issue doesn’t make it go away. It just makes it worse and more expensive.
A properly installed basement waterproofing system should last decades. Our Sub Floor Pressure Relief System is built to handle the long-term water pressure and soil conditions common in Whitemarsh, PA, and we back it with a lifetime transferable warranty because we expect it to outlast most other components of your home.
That said, longevity depends on the quality of the installation and the materials used. Cheap systems or outdated methods like basic French drains tend to fail within 10 to 15 years because they clog, shift, or weren’t designed to handle the kind of water volume and pressure that Pennsylvania basements deal with. When you’re investing in waterproofing, you want a system that’s engineered for your specific conditions and installed by people who know what they’re doing.
Maintenance is minimal. Sump pumps should be tested periodically to make sure they’re working, and it’s smart to keep an eye on your drainage system after heavy storms. But beyond that, a good waterproofing system is a set-it-and-forget-it solution. You shouldn’t have to think about it again once it’s in.
Whitemarsh, PA sits in an area with clay-heavy soil, older home construction, and unpredictable weather patterns. That combination creates the perfect conditions for basement water problems. Clay soil doesn’t drain well, so water sits around your foundation after storms. Older homes weren’t always built with modern waterproofing techniques, which means many basements in this area are vulnerable from the start.
Spring brings heavy rain, winter brings snowmelt, and summer storms can dump inches of water in a short period of time. All of that water has to go somewhere. If your home doesn’t have a proper drainage system and waterproofing in place, it’s going into your basement. Once it’s inside, it’s not just an inconvenience. It’s a health hazard and a structural risk.
Pennsylvania homeowners deal with freeze-thaw cycles that make foundation cracks worse over time. Water seeps into small cracks, freezes, expands, and widens those cracks. Eventually, you’re looking at foundation failure if the problem isn’t addressed. Basement waterproofing stops water before it becomes a bigger issue. It’s not optional maintenance. It’s essential protection for your home’s foundation, your family’s health, and your long-term investment.
Interior basement waterproofing manages water that’s already trying to get into your basement. It typically involves installing a drainage system along the inside perimeter of your foundation, a sump pump to remove collected water, and sometimes a vapor barrier on your walls to control moisture. It’s less invasive, more affordable, and effective for most homes dealing with water seepage or minor foundation cracks.
Exterior waterproofing involves excavating around the outside of your foundation, applying a waterproof membrane or coating to your foundation walls, and installing drainage systems like weeping tiles to redirect water away from your home. It’s more comprehensive and addresses the problem at the source, but it’s also more expensive and disruptive because it requires digging around your entire foundation.
Which approach makes sense depends on your specific situation. If you’re dealing with consistent water intrusion, foundation cracks, or hydrostatic pressure issues, exterior waterproofing might be the right call. If you’re seeing occasional dampness or minor seepage, an interior system is usually enough to solve the problem. We assess your basement, explain what’s causing the water issue, and recommend the approach that actually fixes it without overselling you on work you don’t need.
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