From coast to coast, Koppers Waterproofing has protected thousands of homes and businesses with proven waterproofing systems that hold up against the toughest conditions. Licensed, insured, and ready to respond.
When water finds its way into your home or commercial building, the consequences can be devastating. Structural damage, mold growth, ruined belongings, and compromised air quality are all too familiar to property owners who waited too long to act. At Koppers Waterproofing, we built our entire operation around one mission: stopping water intrusion before it causes irreversible harm.
Our team of licensed and insured waterproofing specialists brings hands-on expertise to every project we take on. We are not a call center dispatching random contractors. We are trained professionals who understand how water moves through soil, how hydrostatic pressure builds against foundation walls, and how the local climate in different parts of the country creates unique moisture challenges. That knowledge shapes every recommendation we make and every system we install.
We serve homeowners, commercial property managers, real estate investors, and contractors nationwide. Whether you are dealing with a leaky basement that floods every time it rains, a crawl space filled with standing water, or a commercial structure showing signs of foundation moisture, our diagnostic process gets to the root cause rather than just treating the symptoms. We believe in doing the job right the first time, which is why our workmanship stands behind a solid guarantee.
Reaching out to Koppers Waterproofing means you get a team that communicates clearly, shows up when promised, and explains exactly what we are doing and why. No pressure tactics, no inflated scopes of work, and no surprise charges when the job is done. We take pride in the relationships we build with property owners across the country, and most of our business comes from referrals because we treat every home as if it were our own.
Whether you own a single-family home, a commercial building, or a multi-unit investment property, Koppers Waterproofing has the system to keep it dry, protected, and structurally sound year-round.
Interior and exterior basement waterproofing systems designed to keep groundwater, surface runoff, and hydrostatic pressure from infiltrating your living space. We assess every crack, joint, and entry point before recommending the right solution.
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Protecting your foundation from water damage is one of the most important investments you can make in your property. Our foundation waterproofing service addresses both new construction and existing structures showing early or advanced signs of moisture intrusion.
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A wet or humid crawl space affects the air quality of your entire home. Our crawl space encapsulation and drainage solutions eliminate standing water, prevent mold growth, and improve the overall health of your living environment.
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Water emergencies do not wait for business hours. Our emergency response team is available around the clock to contain active flooding, deploy water extraction equipment, and begin immediate protective measures to limit property damage.
Learn MoreWhen surface water and subsurface drainage contribute to chronic moisture problems, we install French drains, channel drains, and sump systems that redirect water away from your structure before it ever has a chance to cause damage.
Learn MoreCommercial buildings present unique waterproofing challenges due to their scale, usage patterns, and the higher stakes involved when water enters a business environment. Koppers Waterproofing handles commercial waterproofing projects of all sizes across the country.
Learn MoreWe have seen what happens when homeowners choose the lowest bid without checking credentials. They end up paying twice. Here is what we bring to every job.
No bait-and-switch, no vague estimates that balloon after work starts. You get a clear, written scope before any work begins.
Our dispatch team operates day and night. When you call during a flooding emergency, a real person answers and gets a crew moving.
Every technician we dispatch is trained in waterproofing best practices and understands regional soil, climate, and building code requirements.
We stand behind our work. If a solution we install does not perform as promised, we come back and make it right at no additional charge.

We make the process simple and stress-free so you always know where things stand.
Reach our team 24/7. We gather the basics about your situation and schedule an inspection at your convenience, often same-day or next-day.
A trained technician inspects your property inside and out, identifies moisture sources, and evaluates structural conditions that contribute to water entry.
You receive a detailed written proposal outlining the recommended solution, materials, timeline, and all-in cost. No pressure, no guessing.
Our crew completes the work using proven systems and quality materials. We leave the site clean and walk you through every step of what was done.
We measure our success by what property owners say after the job is done and the rain comes back.
My basement had been taking on water for three years. I had two other companies look at it and neither of them gave me a straight answer. Koppers Waterproofing came out, diagnosed a failed exterior membrane in one visit, and had the whole thing sealed within a week. Dry ever since.
Called at 11pm when I discovered water pouring through a crack in my foundation wall. They answered immediately, talked me through emergency steps, and had a crew at my house first thing in the morning. Professional from start to finish and the price was exactly what they quoted.
I manage a small commercial strip mall and had persistent moisture issues in two of the units. Koppers Waterproofing assessed all three buildings, gave me a consolidated proposal, and completed everything on schedule without disrupting the tenants. Would absolutely hire again.
Honest answers to the questions most homeowners ask before calling us.
Our technicians have answered thousands of questions just like yours. Pick up the phone and talk to a real waterproofing specialist right now. No automated systems, no runaround. Just honest advice about what your property needs.
Call +1-866-476-1348 NowKoppers Waterproofing serves homeowners and commercial property owners in all 50 states. Whether you are in a high-rainfall region of the Pacific Northwest, dealing with heavy clay soils in the Midwest, managing hydrostatic pressure challenges along the Gulf Coast, or protecting a home in the freeze-thaw cycle of the Northeast, we have the expertise and the equipment to address your specific waterproofing challenges. Water does not respect geography, and neither do we. Our nationwide network of trained specialists means that no matter which state you are in, a qualified professional is within reach.
Every hour water sits in your basement or crawl space, the potential for mold growth and structural damage increases. Our team is standing by right now to take your call and get a specialist to your door.