Warrantied French Drain Systems in Washington D.C. & Nearby

Our interior basement drainage solutions will keep your home dry

If you have water leaking into your basement, a perimeter drain could be the right option for you. At NV Waterproofing & Foundation Repair, we offer a variety of interior drainage systems to help you keep your basement dry and clean. Our systems fit all types of foundations and floor slabs, and our experts will help you identify the best drain for your needs.

Call us today at 1-571-570-3118 or click below to learn more about how we can help you. We offer free estimates on all basement drainage system installations in Washington D.C., Alexandria, Arlington and nearby.

What is a French drain?

This might surprise you, but French drains don’t originate from France at all! In fact, the concept was designed by Henry Flagg French in Massachusetts in the mid-1800s. A French drain is not a specific item per se, but rather a name for the space between a basement wall and the concrete slab that allows water to drain outside of the home rather than pool on the floor. Unfortunately, traditional French drains clog easily and often struggle to thoroughly remove water.

Our basement drain systems take this drainage concept to the next level by using a wall flange that allows seepage to enter the drain and collects water off the walls to easily funnel it away from your foundation. Our drain systems also prevent debris from entering the drainage area and provide a clean finished appearance on your floor.

French drains are also known as:
  • Basement drains
  • Drain tile
  • Weeping tile
  • Footing drain
  • Perimeter drain

Which French drain system works best for you?

Different problems call for different tools to fix them. In the same way that we wouldn’t use a hammer to drive in a screw, we do not use the same drain system for every basement waterproofing job we complete.

Each of our drainage systems is designed to address a different, unique challenge that you may be facing. Some of these challenges involve the way your home has been designed, while others address unusual basement water issues, such as iron ochre. We offer a wide selection of French drain systems to choose from:

  • WaterGuard® Below Floor Drain

    For a typical basement, our WaterGuard® system is the ideal choice for waterproofing. This French drain is designed to be installed below the floor slab, resting on top of the foundation footing. This keeps the drainage system out of the “mud zone”, where drains can clog. WaterGuard® is installed with minimal invasion of the slab, and all concrete is restored after installation.

    The WaterGuard® system collects water that seeps through basement walls and drains it to your sump pump. The system installs quickly and has a clean finished appearance, meaning you don’t have to worry about having an unsightly drain around the basement. WaterGuard® works for both block walls and poured concrete, ensuring that your basement remains dry in all situations. This product also comes with a written lifetime warranty.

  • DryTrak® Baseboard Drain Pipe

    If your house has a monolithic foundation, or a foundation that comes with the floor and footing as one piece, jackhammering to install a drain system can be very difficult. In those cases, we use our DryTrak® system to avoid any problems. This system installs over the top of the floor, eliminating the need for excessive excavation.

    DryTrak® provides the same protection and drainage for water seeping through foundation walls, while also giving the clean, finished appearance of a baseboard. The drain is secured to the floor with only a slight opening at the top, allowing water to flow in and drain to your sump pump. DryTrak® comes with a lifetime written warranty.

  • FlowGuard® Thin Floor Drain System

    Sometimes the concrete floor in a basement is too thin for a drain to be installed on top of the footer. If we did install it on top of the footer, the drain would stick up past the concrete slab. We usually address this challenge with our FlowGuard® Thin Floor System. This system is designed to sit in front of the footing in a bed of drainage stone. After installation, the concrete floor is restored over the drain.

    Like our other drain systems, FlowGuard® includes a wall flange, which extends up the wall to direct any leaking water to your sump pump system. This system avoids the “mud zone” to prevent any clogging issues as well. With quick installation and a seamless finish, you’ll be able to enjoy protection from leaks in your basement for years to come.

  • WaterGuard® IOS Iron Ochre Perimeter Drain

    If iron bacteria is present in your water, it will create a gelatinous, rust-colored substance known as iron ochre. This unpleasant material is notorious for smelling terrible, staining everything it touches, and clogging drainage systems. Our experts tackle this rare problem with our WaterGuard® IOS Basement Drain.

    This product is a modified version of our WaterGuard® system that includes an extra-wide drain channel and larger drainage openings. To allow for easy drain system maintenance if clogged, the drain system also includes an exposed, removable lid. This system will protect your home from the nasty appearance and smell iron ochre brings while helping prevent any water from seeping into your basement.

  • TrenchDrain™ Grated Drain Pipe

    For many homeowners, preventing flooding from an outer entryway such as a hatchway, garage door, or doorway is a priority. In this case we use the TrenchDrain™ Grated Draining Pipe to span the opening and prevent water from flowing into your basement. The grated opening of this system is designed to accept water from the floor, where it’s then redirected to your perimeter drain and your sump pump.

    This system comes with a removable lid to clear any debris that may enter the drain and is compatible with all our perimeter drain systems. The device lays smoothly across the floor to eliminate tripping hazards. We also recommend installing the drain inside the door to prevent debris from flooding in as well as to prevent freezing in the winter. TrenchDrain™ comes with a written lifetime warranty.

  • TrenchLock™ Drain Inserts

    Unfortunately, trench drains have the unintended consequence of allowing air from drainage channels and from the ground into the home. This air from the ground may contain hazardous radon gas, a naturally occurring radioactive gas. TrenchLock™ trench drain inserts are specially designed to block unwanted ground air and gasses from entering the basement and ultimately your home.

    TrenchLock™ is an insert that can be installed in an existing trench drain to allow water down without allowing air to come up. The system comes with balls that fit over the drainage holes, which create an airtight seal when there is no water. When water enters the drain, the ball floats to allow the water to drain, sinking back into place as the water drains out. This allows the drain to function perfectly without allowing air to enter.

Let us install the drain system you need for your home!

No matter how your house was constructed or what kinds of problems you’re facing, our waterproofing products can provide a solution that’s ideal for you! We specialize in interior drainage systems to waterproof your home. Call your local basement waterproofing experts at NV Waterproofing & Foundation Repair today to get started with a free estimate in Gaithersburg, Silver Spring, Ashburn, Germantown, Sterling, Fairfax, Bethesda or nearby.

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Customer Information

Don't just take our word for it

See what our customers have to say about our work.

NV Waterproofing was extremely responsive and 100% committed to identifying our water problem and designing a solution. Their work was excellent. The crew was on time and organized. They were very careful to protect the exterior landscaping and the interior of our home from dirt and debris. Even two years later, they responded to a sump problem at no additional charge. NV Waterproofing does the job right and stands behind its work.

Mike and Lynn F. | Columbia, MD

We bought a house in a state of disrepair, and so we've had to work with a number of contractors. I'd rank this company at the top of the list for their professionalism, knowledge, experience, and honesty. We had bowing of our basement walls that needed to be addressed. Michael came out to assess the situation, and gave us some options. After speaking with him, I felt very confident in their ability to buttress our walls. It was also a huge bonus that we were able to set up a payment plan for this job too. When the team showed up, Casey, Kevin, and Grant, they were super polite and professional. They took great care of our property, and if they had a question about anything, they asked. Also, if I had a question, Casey (the foreman), was very knowledgeable and quick to answer. They presented the work as they progressed through the job, and really, I was actually a little blown away by the scale of the project, and the speed at which they worked. What an impressive job they did! We're very confident in the work they did and will hire them again.

Ellen M.  | Takoma Park, MD

We were referred to NV Waterproofing from my brother-in-law who used them and was pleased. They came out and gave us an estimate - they were very prompt. We had the work done - it looked great and I am sure will do the job (only time will tell). We did have a miscommunication with the work (mostly on our part), but the owner had it fixed promptly and without additional cost. I would highly recommend them to anyone with water issues in their basement.

Susan C. | Washington DC, DC

NV stuck with me and made sure I was happy. Roberto Jr kept me calm as my problem persisted and kept working on a solution beyond the obvious. I highly recommend. Looking forward to a dry basement this summer.

Dean R. | Washington, DC

I am writing this letter to commend members of your organization for the waterproofing work performed on and around the foundation of my house. Despite situations beyond the control of both me and your associate, he always maintained professionalism and demonstrated why he is an outstanding representative of your organization. The crew obviously knew what had to be done and went about doing it. They were prompt in arriving at work each day, diligent in the performance of their duties (in spite of high heat and humidity), and took measures to ensure the safety around the excavated area (important because of children in the neighborhood). Unlike other construction sites I have seen, the crew maintained the area free of litter— no small measure these days! In addition, the crew always provided clear explanations of the work to be done each day, answering the questions with forthright and clear responses, never hurrying the discussion. As I was not on site while work was being done, they called me several times, taking those extra steps to keep me informed of the status of the work and aware of the tasks yet to be performed— something that is greatly appreciated. I would appreciate it if you would offer my heartfelt thanks to your able crew for the quality waterproofing work performed and the excellent communication and coordination exhibited by them.

Myra L. | Washington, DC

In my 12 years of having NV Waterproofing as a business partner, they have always proved reliable and trustworthy. They are a great value for me and my customers.

Darryl O. of Brookfield Homes, | Washington, DC

Great professional service and able to respond in timely manner to the project need.

Blake B. | Washington, DC

Brendan was very knowledgeable, professional and courteous. Highly recommend.

Cesar T. | Arlington, VA

A brief note to thank NV Waterproofing for extreme professionalism and courtesy in the manner in which my recent basement water seepage problem was addressed. From the initial contact with Jim, through the work with Roberto, Carlos and Jose, it was an overall pleasant experience – not to mention my contact with the owner and his responsiveness.

Ramesh T. | Arlington, VA

These guys were amazing. The initial visit was smooth, not pushy at all and he was even able to accommodate the relocation of a small drainage pipe. The demo to install the system was done beautifully, yes it was really good, you can tell they were precise and careful when doing so. Everything was clean, no stains on my carpet and they protected everything. No leak so far and I love it. Did I mention the price was excellent? I had 3 other companies to estimate thousands and even tried to sell extra unnecessary equipment. Thank you NV Waterproofing I have and will continue to recommend you.

Chelly Z. | Falls Church, VA

We appreciated NV Waterproofing's honesty and the men who worked tirelessly in uncomfortably cold weather. We've had one big storm since they finished and the basement walls are nice and dry. Nice work!

Peter V. | Falls Church, VA

Mauricio and Cristian were the initial sales reps who came to examine the issue and they took the time to test drainage that might have potentially been creating the water issue. They offered a reasonable solution (sealing the visible cracks and holes in the concrete) and I was contacted within a couple of days with an estimate and scheduling options. Sean was our tech and he did a fantastic job diagnosing the issue beyond just the cracks. He not only address all the holes and cracks in the concrete and mortar, he sealed up additional entry points above the foundation. He sourced additional materials to cover openings for cable lines. He went above and beyond and gave us measured information on how we should continue to monitor and treat this area as the house settles. He was thorough, informative, and provided excellent service in his work. I'm very glad that Sean was the technician sent to us and I would specifically request him for your projects.

Sara T. | Falls Church, VA

Before & after photos

Check out before and after photos from some of our completed projects.

  • Sunken Concrete Step Repair in Stephens City, VA

    This Stephens City, VA homeowner was dealing with a sunken concrete front step that had settled over time, creating an uneven entryway and a noticeable tripping hazard near the front door. Sunken concrete steps can make everyday foot traffic unsafe for homeowners, guests, and delivery drivers, while also taking away from the home’s curb appeal. Our concrete repair team lifted and leveled the front step back to its proper position, creating a safer, more stable walkway and entrance. This concrete step repair helped reduce the risk of falls, improved the look of the front entry, and gave the home a cleaner, more welcoming appearance. The homeowner was thrilled with the outcome — a big transformation that improved both safety and curb appeal!

  • Basement Waterproofing in Winchestor, VA

    A homeowner in Winchester, VA, was struggling with a failing sump pump that couldn’t keep up during heavy rainstorms, leaving their basement vulnerable to water intrusion. The lack of a reliable backup system also left them worried about potential flooding during power outages. Frustrated and seeking a dependable solution, they contacted NV Waterproofing and Foundation Repair, a trusted basement waterproofing company in Winchester, VA.

    After assessing the situation, we replaced their old sump pump with a state-of-the-art TripleSafe Sump Pump system. This advanced system includes three levels of protection: a primary pump, a secondary pump for heavy water flow, and a battery backup to ensure the basement stays dry even during power outages. The homeowner now has peace of mind knowing their basement is fully protected, no matter the weather.

  • Pool Deck Leveling in Manassas, VA

    A homeowner in Manassas, VA, quickly realized their dream backyard pool was at risk when the surrounding concrete pool deck began to show serious problems. Uneven and sunken slabs created tripping hazards and unsightly cracks, making both safety and aesthetics a challenge for anyone using the space. Additionally, water from rain and pool use was pooling in low spots, causing slippery surfaces and further soil erosion beneath the deck. These issues not only threatened the safety of family and guests but also compromised the value and enjoyment of the home.

    Seeking an effective solution, the homeowner reached out to our team for a professional assessment. We identified the main cause of settlement: soil erosion under the slabs—a common issue in Manassas due to its clay-rich ground and fluctuating moisture. To address both the immediate hazards and prevent future damage, we recommended our two-part approach: the cutting-edge PolyLevel® concrete leveling system and NexusPro® Joint Sealant.

    The repair process began with drilling small holes into the affected concrete slabs, allowing us to inject high-strength PolyLevel® polyurethane foam beneath the surface. As the foam expanded, it filled voids, stabilized the soil, and gently lifted the slabs back to their original positions. The process was quick, clean, and minimized disruption, giving the pool deck a level, safe surface once again. PolyLevel® foam is waterproof and lightweight, reducing the risk of future settling and ensuring long-term durability, even in a wet poolside environment.

    To provide further protection, we sealed all cracks and joints with NexusPro® Joint Sealant. This flexible, weather-resistant sealant prevents water from seeping beneath the slabs, protecting the soil and concrete from additional erosion. The result was a clean, finished appearance that not only improved the look of the deck but also safeguarded it for years to come.

    Thanks to modern concrete leveling technology, the homeowner’s pool deck was transformed from a liability into a safe and attractive outdoor gathering space. The project was completed in a single day, with minimal mess and immediate results, giving the homeowner peace of mind and renewed pride in their backyard. If you’re facing similar issues with your pool deck in Manassas, VA, the PolyLevel® system and NexusPro® Joint Sealant offer a fast, effective, and lasting

View All Before & Afters

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NV Waterproofing has locations throughout Northern Virginia, D.C., and Suburban Maryland.

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