Hear from Our Customers
You stop worrying every time rain hits the forecast. No more towels on the floor, no more musty smell when you open the basement door, no more wondering if this is the storm that finally floods your furnace or ruins the stuff you’re storing down there.
Your home value goes up instead of down. A properly waterproofed basement can increase your property value by 15-20%, and when you’re ready to sell, buyers won’t walk away after the inspection finds moisture problems.
You’ll also see lower energy bills. When your basement isn’t constantly damp, your HVAC system doesn’t work overtime trying to control humidity. Most homeowners save 10-15% on heating and cooling costs after waterproofing, and the air quality throughout your entire house improves because you’re not circulating mold spores from below.
Del Val Basement Waterproofing is a family-run company that’s been serving Lower Salford, PA and the surrounding Delaware Valley for over 15 years. We’re licensed, insured, and ranked in the top 9% of all Pennsylvania contractors according to BuildZoom’s scoring system.
We’re not the cheapest option, and that’s intentional. You’re paying for a basement waterproofing contractor who identifies why water is getting in, not just where it’s showing up. That means fewer callbacks, no bandaid fixes, and a lifetime transferable warranty that actually protects your investment.
Lower Salford gets hit with Pennsylvania’s clay-rich soil and over 60 inches of annual precipitation. That combination creates serious hydrostatic pressure against your foundation walls. We’ve seen what happens when homeowners try temporary fixes or hire crews that don’t understand local soil conditions, and we’ve spent years cleaning up those mistakes.
You’ll schedule an inspection where we actually go into your basement and look at the foundation, the grading outside, your drainage system, and any visible cracks or moisture patterns. We’re not selling you a quote over the phone. We need to see what’s happening.
Once we identify the source, we’ll explain what’s causing the water intrusion and what it’ll take to fix it permanently. That might mean exterior waterproofing to stop water before it reaches your foundation, interior drainage systems to redirect water that’s already getting in, sump pump installation to remove water efficiently, or foundation crack repair to seal entry points. Sometimes it’s one solution, sometimes it’s a combination.
The work itself depends on the scope, but most basement waterproofing jobs in Lower Salford, PA take between two to five days. We’ll move anything that’s in the way, complete the installation, test the system, and clean up the work area. You’ll get a walkthrough of what we did, how the system works, and what to expect going forward.
Then you’re covered by a lifetime warranty. If something fails because of our work or materials, we come back and fix it. And if you sell your home, that warranty transfers to the next owner, which is a selling point most buyers care about.
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Basement wall waterproofing in Lower Salford, PA means we’re sealing your foundation walls from the outside or installing drainage systems on the inside to handle water before it becomes a problem. Exterior waterproofing involves excavating around your foundation, applying a waterproof membrane, and installing drainage tile to redirect water away from your home. Interior systems use baseboard drainage channels or full perimeter drains that collect water and send it to a sump pump.
You’re also getting a sump pump system that’s sized correctly for your basement and your soil conditions. Lower Salford’s clay soil doesn’t drain well, which means your sump pump has to handle higher volumes during heavy rain. We install pumps with battery backup so you’re protected even when the power goes out during a storm.
Foundation crack repair is included when needed. We’re not just filling cracks with caulk. We use polyurethane or epoxy injections that bond with the concrete and flex with your foundation as it shifts naturally over time. That prevents re-cracking and stops water from finding new entry points.
Every job includes a final inspection, system testing, and documentation of the work completed. You’ll know exactly what was done, how to maintain it, and who to call if you ever have questions. And because we’re local to the Delaware Valley, we’re not disappearing after the check clears.
Most basement waterproofing projects in Lower Salford, PA run between $3,000 and $10,000 depending on the size of your basement, the severity of the water problem, and whether you need interior or exterior work. A simple interior drainage system with a sump pump on a small basement might come in around $3,500. A full exterior waterproofing job on a larger home with foundation repairs can reach $15,000 or more.
The cost depends on what’s actually wrong. If you’ve got a single crack that’s letting water in, that’s a few hundred dollars to fix properly. If your entire foundation is surrounded by saturated clay soil with no drainage system, you’re looking at excavation, waterproof membrane installation, drainage tile, and potentially regrading, which costs more but also solves the problem permanently.
We don’t give quotes over the phone because we can’t see what’s happening. Every basement is different, every water problem has a different cause, and a real estimate requires an actual inspection. What we can tell you is that fixing it now costs less than waiting until you’ve got structural damage, mold remediation bills, or a buyer walking away from your home sale.
Properly installed basement waterproofing should last the lifetime of your home. The materials we use, waterproof membranes, drainage systems, sump pumps, are designed for 20-30+ years of performance, and the installation method matters more than the products themselves.
Exterior waterproofing lasts longer because it stops water before it ever touches your foundation. Interior systems last just as long functionally, but they require occasional maintenance like cleaning the drainage channels and testing the sump pump. Most homeowners check their sump pump twice a year and flush the system once, which takes about ten minutes.
The reason we offer a lifetime transferable warranty is because we’re confident the work will hold up. We’ve been doing this for over 15 years, and we’ve seen which methods fail and which ones don’t. When you hire a basement waterproofing contractor in Lower Salford, PA who’s been in business for more than a decade and still backs their work with a lifetime warranty, that tells you something about how long they expect it to last.
Lower Salford sits on clay-rich soil that doesn’t drain well, which means water saturates the ground around your foundation instead of filtering down and away. When that soil gets saturated, it creates hydrostatic pressure that can exceed 60 pounds per square foot pushing against your basement walls. That pressure forces water through any crack, gap, or porous section of concrete it can find.
Pennsylvania’s climate doesn’t help. You’re getting over 60 inches of precipitation annually between rain and snowmelt, and a lot of that happens in short, heavy bursts that overwhelm poor drainage systems. If your gutters are clogged, your downspouts dump water right next to your foundation, or your yard slopes toward your house instead of away from it, you’re funneling thousands of gallons of water directly into the soil around your basement.
Foundation cracks are common in older homes because concrete naturally shifts and settles over time. Even small cracks become entry points once hydrostatic pressure builds up outside. And if your home was built without proper exterior waterproofing or a functional drainage system, you’re relying on the concrete alone to keep water out, which it’s not designed to do long-term.
You can handle small fixes like sealing minor cracks or improving your exterior drainage, but full basement waterproofing isn’t a DIY project if you want it to actually work. The problem is that most water intrusion happens because of issues you can’t see, subsurface drainage failures, hydrostatic pressure, foundation movement, and fixing those requires excavation equipment, proper materials, and knowledge of how water moves through Lower Salford’s soil.
Interior waterproofing systems require cutting into your basement floor to install drainage channels, sloping those channels correctly so water flows to the sump pump, and sealing everything so you’re not just creating new leak points. Exterior waterproofing means digging down to the footer, applying membrane correctly, installing drainage tile at the right depth and slope, and backfilling in a way that doesn’t damage what you just installed.
The bigger issue is that if you do it wrong, you’ve spent money and time on something that won’t stop the water, and now you’re paying someone else to redo it correctly. Most homeowners who call us after trying DIY solutions end up spending more in total than if they’d hired a basement waterproofing company in Lower Salford, PA from the start. Plus, you won’t have a warranty, which matters when you’re talking about protecting your home’s foundation.
Waterproofing stops the moisture that causes mold, but it doesn’t remove mold that’s already there. If you’ve currently got mold growth in your basement, you’ll need mold remediation first, then waterproofing to prevent it from coming back. Trying to waterproof over existing mold just traps it behind your new system.
Mold grows when humidity stays above 60% and there’s an organic material for it to feed on, drywall, wood, carpet, cardboard boxes. Basements in Lower Salford, PA hit those conditions easily because of the moisture coming through foundation walls and the naturally high humidity in Pennsylvania. Once you stop water intrusion and control humidity with proper drainage and ventilation, mold can’t grow.
Most homeowners see a noticeable improvement in air quality throughout their entire home after basement waterproofing because they’re no longer circulating mold spores through the HVAC system. Your basement stops smelling musty, and you’re not dealing with the respiratory issues or allergic reactions that come with long-term mold exposure. But if you’ve got active mold now, address that first, then waterproof so it doesn’t return.
Exterior waterproofing is more effective because it stops water before it reaches your foundation, but it’s also more expensive because it requires excavation. Interior waterproofing manages water that’s already getting in by redirecting it to a sump pump before it floods your basement. Which one you need depends on what’s causing your water problem and what your budget allows.
If you’ve got widespread foundation wall seepage, poor exterior drainage, or you’re planning other foundation work anyway, exterior waterproofing makes sense. We excavate around your foundation, apply a waterproof membrane, install drainage tile at the footer level, and regrade so water moves away from your house. That handles the problem at the source.
If you’ve got water coming up through the floor, through cold joints where the wall meets the floor, or you’re dealing with a high water table, interior waterproofing is usually the right call. We install a perimeter drainage system inside your basement that intercepts water and channels it to a sump pump. It’s less invasive, costs less, and solves the immediate problem of water pooling in your basement. Sometimes the best solution is both, exterior work where accessible and interior drainage as backup, which we’ll recommend after inspecting your specific situation.
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