Nebraska Basement Waterproofing - Keep Moisture Out for Good
Water finds its way in slowly - until one season it doesn't look slow anymore.
30+ Years in Business
Employee Owned
4 Nebraska Locations
7,843 Projects Complete
A Wet Basement in Nebraska Isn't Bad Luck. It's Physics.
Nebraska's clay soils don't drain - they hold. When rain saturates the ground around your foundation or when spring snowmelt has nowhere to go, that water presses against your basement walls and floor with real force. It finds the path of least resistance: a crack in the wall, a gap at the floor-wall joint, or straight through porous block. Freeze-thaw cycles widen those entry points a little more every winter. By the time a homeowner notices a puddle on the floor, water has usually been working on that wall for years.
The other problem is what some contractors recommend when water shows up: full exterior excavation. Dig up the landscaping, excavate to the footing, apply a membrane, backfill, and start over - and the invoice to match. The reality is that interior waterproofing systems manage the root cause of the vast majority of wet basement situations, at a fraction of the cost and without touching a single shrub. A contractor who leads with exterior excavation before ruling out interior options isn't giving you the full picture. We will.
What a Waterproofing Expert Does Differently
At Tillotson, we've been working on Nebraska basements since 2018. As a 100% employee-owned company since 2023, every person involved in your job has skin in the game - including getting it right. We'll inspect your basement or crawl space, identify where water is entering and why, and tell you honestly what it will take to stop it. Sometimes that's a simple interior system. Sometimes it's more involved. We'll tell you which one you're looking at.
Waterproofing and Encapsulation Services We Provide
Interior Drainage Systems
An interior drainage system channels water that enters through the foundation to a collection point - a sump pit - where it's pumped out before it can cause damage. This approach manages hydrostatic pressure from the inside, which is why it works for the majority of Nebraska wet basement situations. Installation is minimally disruptive and doesn't require excavating outside the foundation.
Sump Pump Installation and Battery Backup
A properly sized sump pump is the last line of defense against basement flooding - and the first thing that fails when power goes out during a storm. We install primary sump systems sized to your basement's water load, along with battery-powered backup systems that keep working when the grid doesn't. A sump pump that fails in a heavy rain event is worse than no plan at all.
Crawl Space Encapsulation
A crawl space that breathes in ground moisture is a crawl space that breeds mold, rots wood, and sends that air up into your living space through the stack effect. Encapsulation seals the crawl space with a heavy-gauge vapor barrier across the floor and walls, eliminating the moisture source. The result is a dryer crawl space, better air quality in the home, and measurable improvement in energy efficiency - because conditioned air isn't escaping through a damp, uninsulated floor.
Wall Crack Injection
Active foundation cracks that are letting water in can be sealed from the inside using epoxy or polyurethane injection. Epoxy is used where structural bonding is needed; polyurethane foam is used for cracks where flexibility matters or where water is actively seeping. Either way, the goal is to seal the entry point completely - not just on the surface. If the crack also indicates a structural concern, we'll say so. See our foundation repair page for when a crack needs more than injection.
Exterior Waterproofing
Exterior waterproofing - excavating to the footing and applying a waterproof membrane - is the right answer in specific circumstances: when an original exterior membrane has failed, when exterior drainage is the clear root cause, or when the foundation has significant crack movement that warrants access from outside. We do exterior waterproofing when it's warranted. We just don't lead with it when an interior system will do the job.
Interior vs. Exterior Waterproofing - Which One Do You Need?
Interior waterproofing is the right call for most Nebraska homes with wet basements. It manages hydrostatic pressure by giving water a controlled path to the sump system, which stops it from finding its own path through the foundation. It works for crack seepage, joint leakage, and general moisture intrusion through porous block - all without excavation, without landscaping disruption, and at significantly lower cost than exterior work.
Exterior waterproofing is warranted when the original exterior membrane has deteriorated and is no longer doing its job, when exterior drainage is clearly the root cause rather than hydrostatic pressure, or when there's active crack movement that requires exterior access and repair. It's a legitimate tool - but it's not the default. Most homes with wet basements in Nebraska don't need exterior excavation. We'll tell you honestly if yours does.
Waterproofing and foundation repair overlap more than most homeowners realize - water that enters through a crack can accelerate structural movement, and foundation movement creates new entry points for water. If you're seeing both issues, our foundation repair page explains how we handle them together.
How Waterproofing Works at Tillotson
1. Schedule a Free Inspection
Call (800) 643-5731 or request an inspection online. A field expert - not a salesperson - will come to your home, inspect the basement or crawl space, and document what's actually happening.
2. Get a Clear, Honest Recommendation
You'll get a plain-language explanation of where water is entering, why it's entering there, and what the right fix looks like. If an interior system is all you need, that's what we'll recommend. If exterior work is genuinely warranted, we'll tell you that and explain why. If you don't need anything urgent, we'll tell you that too.
3. Work Completed - Backed by Warranty
Our crews install the system correctly, and every job is backed by warranty. We've been doing this in Nebraska since 1987, and as an employee-owned company, we have every reason to make sure it holds.
See the work - from interior drainage installations to full crawl space encapsulations, these are real Nebraska homes and the results that came with them.
Nebraska homeowners describe what it was like before, during, and after working with Tillotson on their waterproofing projects.
"Fast, reliable, professional, and honest. I will gladly recommend this company to others. They were a pleasure to work with."
"All of the people we worked with were very professional. They came back the last morning and cleaned up the basement, were forth coming with issues and we discussed them and they were resolved. Thank you!!!"
Waterproofing - Frequently Asked Questions
What's the difference between interior and exterior waterproofing?
Interior waterproofing manages water after it reaches the foundation by channeling it to a sump system before it can spread across the floor or damage the walls. It works from inside the basement and requires no excavation. Exterior waterproofing addresses the problem from outside the foundation - excavating to the footing, applying or repairing a waterproof membrane, and improving drainage before water ever reaches the wall. Interior is less disruptive and less expensive and handles the majority of wet basement cases. Exterior is the right answer in specific situations - membrane failure, exterior drainage as the root cause, or significant crack movement. A thorough inspection determines which approach your home actually needs.
Does waterproofing fix a foundation problem or just manage it?
It depends on what the foundation problem is. If water is entering through cracks in an otherwise structurally sound wall, waterproofing - crack injection, interior drainage - addresses the root cause and stops the intrusion. If the wall has structural movement - bowing, settlement, or lateral shift - waterproofing manages the moisture but doesn't address the structural issue. Those are two different problems that require two different scopes of work, and sometimes they need to be tackled at the same time. When both issues are present, we'll tell you exactly what's structural, what's moisture-related, and what the right sequence of work looks like. See our foundation repair page (/foundation-repair/) for more on the structural side.
How much does basement waterproofing cost in Nebraska?
Waterproofing costs depend on the size of the basement, the nature and source of the moisture intrusion, and which system is the right fit. A wall crack injection on a single crack can run a few hundred dollars. A full interior drainage system with sump pump installation in a standard Nebraska basement typically runs several thousand dollars, with variation based on basement perimeter, soil conditions, and access. Exterior waterproofing projects cost more due to excavation and backfill. Crawl space encapsulation is priced by square footage and the degree of moisture management required. The only way to give you an accurate number is to inspect the space - which is why estimates are free. Call (800) 643-5731 or request an inspection online.
What is crawl space encapsulation and do I need it?
Crawl space encapsulation is the process of sealing a crawl space against ground moisture using a heavy-gauge vapor barrier across the floor and walls, often paired with a dehumidifier and sealed vents. If your crawl space is currently open to outside air - which most older Nebraska crawl spaces are - it's absorbing ground moisture every season. That moisture causes wood rot in floor joists and support beams, creates conditions for mold and mildew, and migrates upward into the living space through the stack effect, affecting air quality and energy efficiency. If you have a vented crawl space and you've noticed musty odors, soft floors, or high humidity in the home, encapsulation is worth a close look. We'll tell you during the inspection whether your crawl space is a problem that needs attention or one that can wait.
Does waterproofing work in older Nebraska homes?
Yes - and older Nebraska homes are often the ones that need it most. Many homes built before the 1980s have poured concrete or CMU block foundations that weren't waterproofed during construction, and any original damp-proofing that was applied has long since broken down. The physics of water intrusion are the same regardless of when the home was built. Interior drainage systems can be installed in older basements without structural modification to the foundation. Crack injection works on old cracks the same way it works on new ones. The age of the home doesn't limit the effectiveness of the repair - but it does sometimes mean we find more than one issue that needs attention during the inspection, and we'll walk you through all of it.
Financing Available for Waterproofing Projects
Water damage doesn't pause for a convenient moment in the budget. Financing options mean you can address the problem before it becomes a larger one. Ask about financing when you schedule your free inspection.
If Your Basement Is Wet, Let's Find Out Where the Water Is Coming From
One inspection gives you a straight answer - where it's entering, why it's entering, and what it will take to stop it. No pressure, no assumptions, no recommended work you don't need.