Foundation leaking? Basement smells off? Halo Water Proofing sends a real technician to your McLean property, gives you a straight answer, and fixes it right the first time.
Licensed & insured in VA Β· Real warranties

We built Halo Water Proofing around a simple promise: show up when we say, tell you the truth about what's wrong, and fix it so it stays fixed.
Our McLean crew leads have handled repairs like yours dozens of times before, and a supervisor signs off before we call any job finished.
We've worked on foundations from decades-old McLean homes to brand-new builds still settling into their soil, so whatever your basement is dealing with, we've likely seen a version of it nearby.
Talk to a real McLean technician today, not an automated queue. We'll explain what's going on and get you scheduled.
π +1-866-476-1348Water problems build slowly before they become emergencies. These are the clues our McLean crews hear about most.
Odor is often the very first clue McLean homeowners notice, well before any water is visible.
Stair-step cracking in block foundations is one of the most common early signs our McLean crews see.
Efflorescence is a reliable early sign that water is moving through your McLean foundation wall right now.
If your pump only shuts off for a few minutes at a time, it's worth having it checked before it fails outright.
A wall that's starting to bow is a structural issue on top of a water issue β this jumps to the front of our McLean schedule.
Peeling paint near the floor upstairs is one of the last signs McLean homeowners connect to a basement problem.
No two McLean basements are the same β soil type, age of the home, water table. We match the fix to your actual problem.
Storm season keeps our McLean emergency line busy β active flooding always jumps ahead of routine inspections in the queue.
Get Emergency Help βSeasonal ground movement in McLean tends to widen existing cracks over time, so sealing early usually costs less than waiting.
Ask About Crack Repair βA failed sump pump is the top reason for emergency calls across McLean after heavy rain β we install pumps sized to your actual water volume, plus battery backup for power outages.
Book a Pump Check βFor yards fighting bad grading, an exterior French drain intercepts water before it ever touches the foundation wall.
Talk Drainage Options βA damp McLean crawl space drives up humidity throughout the house β we seal it completely with heavy-duty vapor barrier and add dehumidification where needed.
Get a Crawl Space Quote βWe can phase larger McLean commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote βHere's exactly what McLean customers can expect from first call to final walkthrough.
A real technician asks the right questions to understand what's likely happening at your McLean property before anyone drives out.
We point out exactly what we find as we find it, so nothing about the diagnosis feels like a black box.
The number you approve is the number you're billed β no change orders once the crew shows up.
Once the job's done, you get written proof of what was installed and exactly what the warranty covers.
We've heard every McLean horror story about contractors who disappear mid-job or pad the invoice. Here's how we do it differently.
You get a real number before any work starts β what you approve is what you're billed.
We're not routing your call through a national center β the person who answers is close by.
If a covered repair fails, we come back and fix it. That's part of the contract, not just a promise.
If your McLean basement just needs a small crack seal instead of a full system, that's exactly what we'll tell you.
Filing a claim can be confusing β we've walked McLean customers through this process many times.
Our trucks are recognizable around McLean β we don't cut corners on jobs our neighbors will see.
"Called during a storm and had a tech at my door within two hours. Explained everything before touching anything β basement's been dry since."
"Got three quotes for a crack repair. This was the only company that actually explained why the crack was happening instead of just naming a price."
"Our sump pump died during the worst storm of the year, obviously. Battery backup was installed the next day and we haven't worried since."
"Handled waterproofing for our parking structure with minimal disruption to tenants and stuck to the schedule."
"French drain install took two days exactly as quoted, and the yard looked better than before."
"First contractor who actually explained where the water was coming from instead of just quoting a number."
"Sump pump inspection was thorough and they didn't try to sell me a new one when mine just needed a part replaced."
If a covered repair doesn't hold up, we come back and make it right β no arguing, no extra invoice. That's written into every McLean contract we sign.
π +1-866-476-1348Whether you're in an older, established part of McLean or a newer subdivision still settling, we've likely already worked on a foundation like yours nearby.
Zip codes we serve in and around McLean: 22046 22043 22101 22102 22067 22103 22106 22107 22108 22109. Not sure your address is included? Call +1-866-476-1348 and we'll confirm right away.
The map below shows our general McLean coverage area. Call +1-866-476-1348 to confirm service at your exact address.
The longer water sits against your foundation, the more it costs to fix. Our McLean line is open right now.
π Call +1-866-476-1348 β McLean 24/7 Line