Basement Waterproofing Done Right.
We don’t guess. We know why basements leak.
We fix the problem at its source.
Serving Washington DC, Maryland, and Virginia.
Engineer-owned · In-house crews · No subcontractors.
No spam. We’ll contact you within 24 hours.
We Started as Inspectors — Not Salespeople
DMV Waterproofing was founded by engineers who began their careers inspecting foundations — not selling services.
For over 20 years, we’ve diagnosed real problems across Maryland, DC, and Virginia.
We don’t guess. We don’t oversell. We recommend what your home actually needs.
Customer reviews
Engineer-Founded. Locally Operated. No Subcontractors.
Our Story
DMV Waterproofing was built on real field experience — not a business plan.
Before starting the company, our founders spent years inspecting foundations across the DMV, studying soil conditions, groundwater behavior, and structural issues.
That experience shapes everything we do today:
We diagnose first, then recommend only what actually solves the problem.
Talk Directly with an Engineer
Call 1-833-888-2533 to schedule a free inspection.
No pressure. Just a clear, honest assessment based on experience.
Why Homeowners Trust DMV Waterproofing
- Engineer-led company
- In-house crews only (no subcontractors)
- 20+ years of local experience
- Three local branches (DC· MD · VA)
- We diagnose first — no overselling
- Lifetime warranty
Protect your home & family with solutions that last a lifetime.
Is Your Basement Wet?
Water stains on the walls. Puddles on the floor after a heavy storm. White powdery residue where water keeps seeping in. These aren’t just inconveniences — they’re signs of a foundation water problem that gets worse over time, not better.
Is Your Basement Cold or Damp?
A cold, clammy basement is often a sign of moisture infiltrating through your foundation walls or crawl space. Uncontrolled groundwater keeps temperatures low and humidity high, leading to mold, wood rot, and structural damage.
Does Your Basement Have a Musty Smell?
That odor is a warning sign. Musty smells in basements and crawl spaces almost always mean moisture is present — and where there’s moisture, mold follows. Left untreated, mold spreads through your walls and affects the air your family breathes every day.
Is Your Foundation Cracked?
A hairline crack today becomes a water entry point tomorrow. Horizontal cracks signal soil pressure. Vertical and diagonal cracks indicate settlement. Stair-step cracks mean foundation movement. These aren’t just cosmetic issues — they’re warnings that get more expensive to fix the longer you wait.
Sound familiar? We can help.
Call 1-833-888-2533 for a free inspection — no pressure, no obligation. Just an honest assessment from engineers who’ve been doing this since 2005.
How much does basement waterproofing cost in the DMV area?
The cost varies depending on the size of the basement, the source of water intrusion, and the solution required. Most residential projects in the DC, Maryland, and Virginia area range from $3,000 to $15,000. We provide free on-site estimates with no obligation.
How long does a basement waterproofing project take?
Most interior waterproofing jobs are completed in 1–2 days. Exterior waterproofing projects, which involve excavation around the foundation, typically take 3–5 days depending on the size of the home. Our team works efficiently to minimize disruption to your home.
Do you offer a warranty on your waterproofing work?
Yes. DMV Waterproofing backs its work with a written warranty. Warranty terms vary by the type of solution installed — our inspector will explain the coverage in detail during the free estimate.
What makes DMV Waterproofing different from other companies?
DMV Waterproofing was founded by two civil engineers with over 20 years of experience in large-scale construction including tunnels, subways, and high-rise buildings. Unlike competitors who use shallow plastic drain channels, our interior drain tile system is installed at footer depth — up to 16 inches deep — intercepting water before it ever reaches your basement floor. We use no subcontractors, and every job is performed by our own trained crews.
Do I need to leave my home during the waterproofing work?
In most cases, you can stay in your home during the project. Our crews work in the basement only, and we take precautions to contain dust and debris. We’ll let you know in advance if any specific step requires temporary access to other areas.
What are the signs that my basement needs waterproofing?
Common signs include water stains or white chalky deposits (efflorescence) on walls, musty odors, visible mold or mildew, damp or wet floors after rain, and cracks in foundation walls or the floor slab. If you notice any of these, contact us for a free inspection.
Do you serve all areas in DC, Maryland, and Virginia?
Yes. We operate from three branches — Rockville, MD; Ashburn, VA; and Manassas, VA — covering the entire DC metropolitan area including Washington DC, Northern Virginia, and suburban Maryland.
Do you offer financing for waterproofing projects?
Yes. DMV Waterproofing offers flexible financing through Wisetack. Projects from $500 to $25,000 qualify, with terms ranging from 3 to 120 months. Rates start at 0% APR for 3-month plans — no penalties, no late fees, and no compounding interest. Financing is subject to credit approval.
Do I need a permit for basement waterproofing in DC, Maryland, or Virginia?
Permit requirements vary by location. Washington DC requires a permit for most waterproofing work. In Maryland and Virginia, requirements differ by city and county — some jurisdictions require permits while others do not. DMV Waterproofing will advise you on permit requirements specific to your location during the free estimate.
Should my sump pump have a battery backup?
Yes, we strongly recommend a battery backup sump pump. Power outages most commonly occur during heavy storms — exactly when your sump pump is working hardest. A battery backup ensures your basement stays protected even when the power goes out. We install battery backup systems as part of our sump pump installations.
Our Service Areas
Washington, DC Maryland Virginia
- Northwest DC
- Georgetown
- Northeast DC
- Capitol Hill
- Southeast DC
- Anacostia
- Anacostia
- Dickerson
- Clarksburg
- Hyattsville
- College Park
- Wheaton
- Takoma Park
- Beltsville
- Rockville
- Bethesda
- Potomac
- Silver Spring
- Gaithersburg
- Germantown
- Olney
- Arlington
- Mclean
- Great Falls
- Falls Church
- Alexandria
- Burke
- Springfield
- Centerville
- Chantilly
- Fairfax
- Ashburn
- Manassas
- Reston
- Herndon
Schedule a Free Inspection
Schedule a convenient time for one of our inspectors to take a look at your home.
You’ll get a clear, honest assessment — no pressure, no obligation.