Halo Water Proofing has been the McLean area's go-to call for Crawl Space Encapsulation because we answer the phone, show up on time, and stand behind the work.

Halo Water Proofing started as a small VA crew and grew because McLean customers kept referring us to neighbors β that's still how most of our work comes in today.

Every technician on our McLean crew is background-checked, factory-trained on the equipment we install, and held to the same estimate we quote you over the phone β no upsell surprises when the truck pulls up.
One call gets you a straight answer and a real appointment window β not a call-back promise.
π +1-866-476-1348Most McLean customers didn't wake up one day with a flooded basement. It usually started small. These are the early signs worth calling about.
If the basement smells damp even when it looks dry, moisture is likely moving through the walls or floor somewhere.
Hairline cracks can widen over a McLean winter's freeze-thaw cycle and become active leak points by spring.
That white chalky film on basement walls is efflorescence β mineral deposits left behind as water evaporates through concrete.
A sump pump that never stops cycling is often working harder than it should, or is undersized for your McLean lot's water table.
A bowing basement wall is a structural concern in addition to a water one β this is the kind of McLean call we prioritize fast.
Peeling paint low on a basement wall or warped baseboards upstairs often trace back to moisture migrating up from below.
Every McLean property is different β soil, slope, foundation age, water table depth. We size the fix to the actual problem, not a one-size package.
Storm season in McLean, VA means our emergency line gets busy fast β we triage calls by severity so active flooding at your McLean address jumps the queue ahead of routine inspections.
Call for Emergency Service βA cracked foundation wall isn't just a cosmetic issue β it's a water entry point and, over time, a structural one. Our McLean crews assess whether it's a simple seal or a sign of bigger settlement issues before recommending a fix.
Get a Crack Assessment βAlready have a sump pump that's failing or too small for your McLean lot? We'll test it, tell you honestly whether it needs replacing, and size the new one to your actual water volume β not the cheapest unit on the truck.
Schedule a Pump Inspection βSome McLean lots need both an interior and exterior system working together β we'll tell you honestly if that's the case rather than selling just one.
Ask About Drain Systems βMusty smell upstairs that you can't explain? It's usually the crawl space. Our McLean crews encapsulate the space fully β floor, walls, and vents β so moisture stops migrating into your living areas.
Get a Crawl Space Quote βWe can phase larger McLean commercial projects around business hours or tenant schedules so operations aren't disrupted mid-project.
Request a Commercial Quote βNo confusing steps, no hard sell β just the same process our McLean crews follow on every job.
You call +1-866-476-1348 and talk to a real technician who asks the right questions to understand what's likely happening at your McLean property.
A technician inspects the McLean property in person, checking the foundation, drainage, grading, and any active moisture before recommending a fix.
You receive a written, itemized quote before any work begins β the number you approve is the number you're billed.
Our crew completes the work, cleans up the site, and walks you through the warranty coverage on what was installed.
We quote the job in writing after inspecting it in person, so what you agree to on the phone or at your door is what shows up on the final invoice.
A local dispatch model means the technician who answers questions about your McLean job is the same one who shows up to do it.
Our repairs come with written, transferable warranties β a real asset if you sell the McLean property later.
Our technicians are paid to diagnose correctly, not to upsell β that changes the advice you actually get on-site.
We document the damage with photos and a written scope your insurance adjuster can actually use, and we'll walk you through the claim process.
Our name is on trucks driving around McLean every day β we don't cut corners on a job our neighbors will see.
"They came out the same afternoon I called about water coming in during a storm. Explained everything before they touched anything. Basement's been bone dry since."
"Got quotes from three companies for a crack repair. These guys were the only ones who actually explained why the crack was happening instead of just quoting a price."
"Crawl space smelled awful for years. Encapsulation crew did a clean job and the smell is completely gone upstairs now."
"Managed our building's parking garage waterproofing project. Kept to the schedule, communicated well with tenants, minimal disruption."
"French drain install took two days like they said it would, not five. Yard was put back together better than before."
"Insurance claim was a headache until they stepped in with photos and a written scope. Adjuster approved it within a week after that."
Whether you're in the older, established parts of McLean or a newer subdivision still settling, our crews have 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 if your address is included? Call +1-866-476-1348 and we'll confirm on the spot.
Use the map to gauge our McLean service radius β for an exact confirmation, a quick call is the fastest way to know.
The longer water sits against your McLean foundation, the more it costs to fix. Our line is open right now.
π Call +1-866-476-1348 β McLean 24/7 Line