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You stop worrying every time rain hits the forecast. No more middle-of-the-night shop-vac sessions or that musty smell creeping up from downstairs.
Your basement becomes usable space again—not a liability. You’re not moving boxes to higher shelves or avoiding storing anything valuable down there.
The air quality in your whole house improves because up to 50% of the air on your first floor comes from your basement. When moisture and mold aren’t growing below, you’re breathing cleaner air above. Your home value holds because buyers see a dry basement with a transferable lifetime warranty, not a red flag that tanks negotiations.
Del Val is a family-run basement waterproofing company based in Plymouth Meeting, serving Montgomery County homeowners for over 15 years. We’re not a national franchise reading from a script—we know Abington’s clay-heavy soil and how freeze-thaw cycles create foundation pressure that other contractors miss.
We’ve installed thousands of sub-floor pressure relief systems across the Delaware Valley. Structural engineers recommend our approach because it addresses the root cause, not just the symptoms. You get the experience of a large operation with the pricing and attention of a local crew.
Every job comes with a lifetime transferable warranty. That’s not marketing talk—it’s how confident we are that the work holds up.
First, we inspect your basement to identify where water enters and why. Most leaks in Abington stem from hydrostatic pressure—water in the soil pushing against your foundation. We’re looking at cracks, seepage points, and how water moves around your property.
Next, we install an interior drainage system along the perimeter of your basement floor. This captures water before it surfaces and channels it to a sump pump system. For homes with exterior access, we may recommend exterior waterproofing with membrane protection on foundation walls.
The sub-floor pressure relief system is what sets this apart. It relieves the pressure buildup under your slab, so water doesn’t force its way through cracks or joints. This system works with your sump pump to keep everything dry, even during Abington’s heaviest spring rains.
You stay in your home during the work. Most jobs take a few days, and while there’s some noise and dust, it’s manageable. Once we’re done, you have a system designed to last the life of your home with minimal maintenance.
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You get a full perimeter drainage system installed inside your basement, designed specifically for Abington’s soil conditions. This includes a sump pump with battery backup so your system works even during power outages—critical during severe storms.
We address foundation cracks with carbon fiber reinforcement or polyurethane injection, depending on severity. If your walls are bowing or showing structural stress from years of water pressure, we handle that too. Exterior waterproofing includes excavation, membrane application, and proper drainage routing away from your foundation.
Abington’s red and brown clay soils retain moisture longer than sandy soils, which means your foundation faces prolonged pressure after every rain. Our systems account for this. We also install vapor barriers in crawl spaces if needed and ensure downspouts and grading direct water away from your home.
The lifetime transferable warranty covers the waterproofing work. If you sell your house, the warranty transfers to the new owner—a selling point that buyers notice and appreciate during inspections.
Most basement waterproofing projects in Abington run between $4,000 and $8,000, depending on your basement size, the severity of water intrusion, and whether you need interior or exterior work. A straightforward interior drainage system with sump pump installation sits at the lower end. Exterior waterproofing with excavation and foundation repair pushes toward the higher end.
That price includes the drainage system, sump pump, pressure relief installation, and warranty. It’s less than dealing with repeated water damage, mold remediation, or foundation repairs down the road—those costs add up fast and don’t actually fix the problem.
We provide free estimates so you know exactly what you’re paying for before any work starts. No surprises, no upselling once we’re on site.
A properly installed interior drainage system lasts decades without major maintenance. The sump pump is the only component that may need replacement after 7-10 years of heavy use, and that’s a straightforward swap.
Our sub-floor pressure relief systems are designed to last the life of your home. The materials don’t degrade, and because they address the underlying pressure issue, they’re not constantly fighting against water like surface-level fixes.
The lifetime transferable warranty backs this up. We’re not offering that kind of coverage on work that fails in five years. You’re looking at a permanent solution, not a temporary patch that buys you a few seasons.
Yes, but only if the moisture source is eliminated. Mold needs moisture to grow, and basement waterproofing removes that moisture by preventing water intrusion and controlling humidity levels.
Once your basement stays consistently dry, existing mold stops spreading. You’ll still need to remove any mold that’s already present—we can handle that as part of the job if needed. But without ongoing moisture, new mold won’t develop.
The air quality improvement is noticeable. That musty smell disappears, and because your HVAC isn’t pulling damp air from the basement up through your house, you’re breathing cleaner air on every floor. For families dealing with asthma or allergies, this makes a real difference.
Yes, and interior waterproofing is often the most effective approach for existing homes in Abington. Interior systems capture water after it passes through the foundation but before it surfaces in your basement. This method works regardless of exterior soil conditions or landscaping obstacles.
Interior waterproofing is less invasive than exterior work. You don’t need excavation around your foundation, which means no tearing up driveways, patios, or landscaping. The work happens entirely inside, and you can stay in your home during installation.
Exterior waterproofing makes sense for new construction or homes with severe foundation damage that requires outside access anyway. But for most Abington homeowners dealing with water intrusion, an interior system with proper pressure relief solves the problem completely.
That’s why battery backup systems exist. We install sump pumps with battery backup as standard because power outages often happen during the severe storms that put the most stress on your waterproofing system.
The battery kicks in automatically if power cuts out. It keeps your pump running for hours—long enough to get through most storms without flooding. You’re not scrambling with a generator or watching water creep across your basement floor in the dark.
Regular sump pump maintenance matters too. We recommend testing your pump a few times a year and checking the battery backup annually. It’s simple upkeep that prevents problems when you need the system most.
Most failed waterproofing jobs address symptoms instead of the root cause. Sealing cracks from the inside or applying waterproof paint might stop minor seepage temporarily, but it doesn’t relieve the hydrostatic pressure pushing water through your foundation.
Abington’s clay soils create significant pressure against foundation walls, especially during freeze-thaw cycles. If the previous contractor didn’t install a drainage system with pressure relief, water finds new entry points. Cracks reopen, joints separate, and you’re back to square one.
Our approach eliminates the pressure causing the leaks. Water gets captured and redirected before it can force its way into your basement. That’s why our systems come with a lifetime warranty—we’re fixing the actual problem, not just covering it up.
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