Hear from Our Customers
You stop worrying every time rain hits the forecast. Your basement stays dry during spring downpours and summer storms, not just for a season but for decades.
The air smells cleaner because moisture isn’t feeding mold growth in your walls. Your foundation isn’t taking on water that freezes, expands, and cracks when winter comes back around.
You’re not calling someone back in six months because the “fix” didn’t hold. The system works because it’s designed for Valley’s soil conditions, drainage patterns, and weather cycles. That’s what proper basement waterproofing in Valley, PA actually delivers.
Del Val Basement Waterproofing is a family-run basement waterproofing company serving Valley, PA and the surrounding counties. We’ve spent over 15 years fixing basements that leak, foundations that crack, and crawl spaces that stay wet.
We’re not the biggest operation in Pennsylvania. We’re local, and we treat your foundation like it’s ours because that’s how we were raised to work.
Valley homeowners deal with clay-heavy soil that holds water and older homes with stone foundations that weren’t built with modern drainage in mind. We know what works here because we’ve waterproofed hundreds of basements in this area, and we back every job with a lifetime transferable warranty.
We start with a free inspection of your basement, foundation, and grading around your home. We’re looking at where water enters, how it moves, and what’s causing the problem in the first place.
From there, we recommend either interior or exterior basement waterproofing in Valley, PA based on what your home actually needs. Interior systems use drainage channels and sump pumps to collect water and move it out before it floods your floor. Exterior waterproofing means excavating around your foundation, sealing the walls with waterproof membrane, and installing drainage that keeps water away from the structure entirely.
We explain both options, walk through costs, and let you decide what makes sense for your home and budget. Once work begins, you can stay in your house—most jobs don’t disrupt your daily routine. When we’re done, you get a system designed to last 20 to 30 years or more, plus that lifetime warranty in writing.
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Every basement waterproofing solution in Valley, PA includes a detailed inspection report so you know exactly what’s wrong and why. We don’t guess—we measure, document, and explain.
Interior work typically involves installing a sub-floor pressure relief system, which is a more reliable update to old French drains that clog or fail over time. We also seal foundation cracks, install sump pumps where needed, and make sure water has a clear path out of your basement.
Exterior basement foundation waterproofing in Valley, PA means digging down to your footer, cleaning and prepping the foundation wall, applying a waterproof membrane, and installing perimeter drainage with proper grading. It’s more invasive upfront but gives you the most comprehensive protection available. Valley’s freeze-thaw cycles and heavy spring rains make exterior systems worth considering if your foundation is already compromised or if you’re dealing with recurring leaks that interior fixes haven’t solved.
Interior drainage systems and sump pumps can last 20 to 25 years with minimal maintenance. You’ll want to check your sump pump annually and clear any debris from drainage channels, but the system itself is built to handle decades of use.
Exterior basement wall waterproofing in Valley, PA lasts even longer—often 30 years or more. The membrane we apply to your foundation doesn’t degrade quickly, and the drainage system we install is designed to handle Valley’s soil and weather conditions long-term.
That’s why we back our work with a lifetime transferable warranty. If the system fails because of workmanship or materials, we fix it. If you sell your home, the warranty transfers to the new owner, which adds real value when it’s time to move.
Interior waterproofing manages water after it’s already trying to get into your basement. We install drainage channels along the perimeter of your basement floor, which collect water and direct it to a sump pump that pushes it outside. We also seal cracks and apply moisture barriers to your walls.
Exterior waterproofing stops water before it ever reaches your foundation. We excavate around your home, apply a waterproof membrane to the foundation walls, and install drainage systems that redirect water away from the structure entirely.
Interior systems are less expensive and less disruptive, which makes them a solid choice if you’re dealing with minor seepage or want a budget-friendly option. Exterior systems cost more upfront but give you the most thorough protection, especially if your foundation has significant cracks or if you’ve already tried interior fixes that didn’t hold. For Valley homes with older stone foundations or poor exterior grading, exterior work often makes the most sense.
Most projects 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. Interior systems with drainage and a sump pump typically fall on the lower end of that range.
Exterior basement waterproofing in Valley, PA costs more because it involves excavation, membrane application, and perimeter drainage installation. If your foundation needs significant crack repair or if grading work is required, that adds to the total.
We give you a free inspection and a detailed estimate before any work starts, so you know exactly what you’re paying for and why. There’s no pressure and no surprises. We’re not the cheapest option in the area, and that’s intentional—you’re paying for a system that lasts, a warranty that means something, and a crew that’s been doing this for over 15 years.
Waterproofing eliminates the moisture that mold needs to grow, which is the root cause of the problem. If your basement stays dry, mold doesn’t have the environment it needs to thrive.
That said, if you already have mold growth, waterproofing alone won’t remove it. You’ll need mold remediation first, which we also handle. We remove contaminated materials, treat affected areas, and then waterproof the space so moisture doesn’t come back.
Valley’s humidity and older homes with poor ventilation make basements prime targets for mold, especially if water seeps in during heavy rains. Once your basement waterproofing solution in Valley, PA is in place and moisture is controlled, you’ll notice cleaner air and fewer respiratory issues. It’s not just about keeping water out—it’s about making your home healthier to live in.
You can handle minor surface sealing or small crack repairs on your own if you’re handy and the problem is limited. But if you’re dealing with recurring leaks, foundation cracks wider than a quarter-inch, or water that comes in during every rainstorm, you need a basement waterproofing contractor in Valley, PA who knows how to diagnose and fix the real issue.
Most DIY fixes address symptoms, not causes. You might seal a crack, but if hydrostatic pressure is pushing water through your foundation or if your exterior grading is funneling water toward your home, that crack will reopen or water will find another way in.
We’ve seen plenty of homeowners spend money on temporary fixes that fail within a year. A proper system—whether it’s interior drainage or exterior waterproofing—requires the right equipment, materials, and experience to install correctly. That’s what you’re paying for, and that’s why we can back it with a lifetime warranty.
Most inspections happen within a few days of your call, depending on our schedule. We’ll walk your property, assess the problem, and give you a detailed report with our recommendations and a written estimate before you leave.
If you decide to move forward, we typically start work within one to two weeks. Timing depends on the scope of the project and weather conditions, especially for exterior work that requires excavation.
We don’t drag jobs out. Most interior basement waterproofing projects in Valley, PA take two to three days. Exterior work takes longer—usually a week or so depending on the size of your foundation and how much drainage work is needed. You can stay in your home during the process, and we clean up when we’re done. No mess left behind, no lingering disruption.
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