Hear from Our Customers
Your basement doesn’t smell like mildew anymore. You’re not running downstairs during every storm to check for water. The dehumidifier isn’t working overtime, and your electric bill reflects that.
You can actually use the space without worrying about ruined boxes, damaged flooring, or that black mold creeping up the walls. Your home value isn’t taking a 25% hit because of water issues that scare off buyers.
The real benefit isn’t just a dry basement. It’s not thinking about your basement at all. No stress during heavy rain. No health concerns from mold spores circulating through your HVAC system. Just a protected home that works the way it should.
Del Val Basement Waterproofing is a family-run waterproofing company serving Montgomery, PA and the surrounding Delaware Valley. We know what Pennsylvania weather does to foundations because we’ve been dealing with it in this area for years.
We’re not the company that shows up, scares you with worst-case scenarios, and pushes a $20,000 system you don’t need. We look at what’s actually causing water to come in, explain what needs to happen, and give you a price that makes sense.
Every job comes with a lifetime transferable warranty. That’s not marketing talk. It means we stand behind the work, and if you sell your home, the warranty goes with it. You’re working with people who live here, understand Montgomery’s soil and drainage issues, and aren’t disappearing after the check clears.
First, we inspect your basement to figure out where water’s getting in. That means checking foundation cracks, looking at grading around your home, and understanding how Montgomery’s clay-heavy soil is affecting drainage. We’re not guessing.
Once we know the source, we explain what needs to happen. That might be interior waterproofing with a drainage system and sump pump. It could be exterior work with excavation and membrane installation. Sometimes it’s foundation crack repair using carbon fiber or polyurethane injection. We tell you what’s necessary and what’s optional.
During the work, we protect your property and clean up daily. Most jobs take a few days depending on scope. When we’re done, you get a system that handles Montgomery’s heavy spring rains and winter thaw cycles without you having to do anything.
You’ll know how your sump pump works, what to listen for, and when to call if something seems off. We don’t just fix the problem and leave. You understand what was done and why it works.
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You get a full assessment of your water problem, not a cookie-cutter solution. In Montgomery, PA, that matters because homes built on sloped lots have different issues than homes in low-lying areas near creeks. We account for that.
Interior waterproofing includes perimeter drainage systems, sump pump installation with battery backup, and vapor barriers where needed. Exterior work means excavating down to the footer, repairing foundation damage, applying waterproof membrane, and regrading to move water away from your home.
Foundation repairs cover everything from hairline cracks to structural issues. We use modern materials like carbon fiber straps for wall stabilization and polyurethane injection for active leaks. These aren’t temporary patches. They’re engineered solutions that hold up under Montgomery’s freeze-thaw cycles.
Every job includes our lifetime transferable warranty. You’re also getting a local company that answers the phone when you call. If you have a question three years from now, you’re not dealing with a call center. You’re talking to someone who knows your property.
Most basement waterproofing jobs in Montgomery, PA run between $3,000 and $8,000 depending on the size of your basement and what’s causing the water intrusion. Interior drainage systems with sump pumps typically cost less than full exterior excavation and membrane installation.
If you’re just dealing with a few foundation cracks, you might spend $1,500 to $3,000 for injection repair. If you need comprehensive interior and exterior work because of serious drainage issues, you could be looking at $10,000 or more.
The cost depends on your specific situation. A 1,200 square foot basement with minor seepage needs different work than a 2,000 square foot basement with standing water and foundation cracks. We give you an honest assessment and a clear price before any work starts. No surprises, no upselling systems you don’t need.
Montgomery gets hit with intense rainfall that dumps several inches in a short period. When that happens, the ground can’t absorb water fast enough, and it pools around your foundation. If your gutters are clogged, your downspouts dump water right next to your house, or your yard slopes toward your foundation, that water finds a way in.
Pennsylvania’s clay-heavy soil makes this worse. Clay doesn’t drain well, so water sits against your foundation walls, building hydrostatic pressure until it pushes through cracks, mortar joints, or the floor-wall seam. Older homes in Montgomery often have stone foundations that were never designed to be waterproof.
Winter compounds the problem. Snow piles up around your foundation, then melts rapidly during a warm spell. The ground’s still frozen, so all that meltwater has nowhere to go except into your basement. That’s why you’ll see flooding in February or March even when it’s not raining.
Properly installed waterproofing systems last decades when maintained correctly. Interior drainage systems and sump pumps can run 20-30 years before needing replacement. Exterior waterproofing membranes last even longer, often 30-50 years, because modern materials like rubberized asphalt hold up well against Montgomery’s freeze-thaw cycles.
The key is using quality materials and installing them correctly the first time. Cheap DIY fixes or poorly installed systems fail within a few years. That’s why we use commercial-grade sump pumps, not the $200 units from big box stores that burn out after two seasons.
You do need to maintain the system. That means testing your sump pump a few times a year, keeping gutters clean, and making sure your battery backup works. We walk you through all of that. Our lifetime warranty covers the installation and materials, so if something fails because of how we installed it, we fix it. That’s why proper installation matters.
It depends on what’s causing the water intrusion and what your budget allows. Exterior waterproofing is more comprehensive because it stops water before it reaches your foundation walls. We excavate around your home, repair any foundation damage, apply a waterproof membrane, install drainage tile, and regrade the soil. It’s the most effective solution but also the most expensive.
Interior waterproofing manages water that’s already coming in by capturing it and pumping it out. We install a perimeter drainage system along the inside footer, direct water to a sump basin, and pump it away from your home. It’s less invasive, costs less, and works well for most Montgomery, PA basements dealing with typical water seepage.
Sometimes you need both. If you have foundation cracks and poor exterior drainage, interior waterproofing alone won’t solve the problem. We assess your specific situation and recommend what actually makes sense. If interior work will handle it, we’re not going to push you toward exterior excavation just to run up the bill.
Waterproofing stops the moisture that causes mold, but it doesn’t remove existing mold. If you already have mold growth, you need to address that separately before or during waterproofing. Once the moisture source is eliminated, mold can’t grow back.
Basements in Montgomery, PA are prone to mold because of high humidity from water seepage and poor ventilation. When we waterproof your basement, we’re cutting off the water source. Pair that with a good dehumidifier, and you’ve eliminated the conditions mold needs to thrive.
If you have visible mold on walls or belongings, you might need professional mold remediation before waterproofing. Small areas can often be cleaned with proper products and safety equipment. Large infestations need specialists. Once that’s handled and we’ve waterproofed your basement, the mold problem doesn’t come back because the environment can’t support it anymore.
Most interior waterproofing systems in Montgomery, PA include a sump pump because that’s how you remove water that’s collected by the drainage system. The drain tile captures water seeping through your foundation and directs it to a sump basin. The pump then pushes that water out and away from your home.
Without a sump pump, the water just sits in the basin. That defeats the purpose of the drainage system. You need a reliable pump with enough capacity to handle Montgomery’s heavy rain events. We install pumps that can move 2,500+ gallons per hour, which is what you need during severe storms.
You also want a battery backup system. When storms knock out power, your sump pump stops working right when you need it most. A battery backup keeps the pump running for hours during outages. It’s not optional if you want real protection. We include that in our recommendations because we’ve seen too many finished basements flood during power outages simply because the pump couldn’t run.
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