From a hairline crack to a fully soaked crawl space, our McLean crew has seen it and fixed it. No guesswork, no scare tactics β just a clear plan and a fair price.
Licensed & insured in VA Β· Written pricing

Halo Water Proofing is a VA-licensed Foundation Crack Repair company that treats every McLean job like it's the only one on the schedule.
Every McLean technician we send is background-checked and trained on the exact equipment we install β not a subcontractor picked up for the day.
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 +1-866-476-1348Most McLean calls didn't start with a flood β they started with one of these small signs weeks or months earlier.
If the basement smells damp no matter the season, water is likely finding a way in somewhere you can't see.
A crack that wasn't there last year is worth a look before it becomes an active leak point.
It's easy to mistake efflorescence for harmless dust, but it actually signals active moisture movement.
A pump under constant strain tends to fail during the exact storm that needs it most.
This is one sign we tell McLean customers never to wait on β wall movement tends to progress, not resolve on its own.
These upstairs clues usually show up months after the basement moisture problem actually started.
Whatever's going on with your McLean property, chances are we've already fixed something similar nearby this month.
When water shows up fast, we move fast β extraction, drying equipment, and a plan to stop it from happening again.
Get Emergency Help βNot every crack means a structural problem, but every crack deserves a real look. We'll tell you which kind yours is.
Ask About Crack Repair βMost McLean pump failures happen during the exact storms that need them most, which is exactly why battery backup matters.
Book a Pump Check βAn interior drain tile system routes water to a sump pump before it reaches your McLean basement floor at all.
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.
We figure out fast whether this needs an emergency dispatch or a scheduled inspection.
We point out exactly what we find as we find it, so nothing about the diagnosis feels like a black box.
No verbal number that quietly grows once the truck pulls up β the written quote is the final word.
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.
Our major repairs come with written, transferable warranties β useful if you sell the McLean property later.
If your McLean basement just needs a small crack seal instead of a full system, that's exactly what we'll tell you.
We can supply the documentation most carriers ask for before approving a McLean claim.
Word of mouth is still how most McLean customers find us, which keeps our standards high.
"Woke up to a wet basement and had someone out by mid-morning. No pressure, no upsell, just fixed it."
"Fair price, on time, cleaned up after. Wish every contractor worked this way."
"Crawl space smelled bad for years. After encapsulation, the smell upstairs is completely gone."
"Straightforward commercial quote, professional crew, no back and forth."
"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."
Every McLean technician we send is background-checked and trained on the systems we install, so the crew that inspects your property is the same one that fixes it.
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.
Coverage in McLean includes 22046 22043 22101 22102 22067 22103 22106 22107 22108 22109 and neighboring communities β if you're just outside that list, call anyway, since we often extend service case by case.
Use the map as a guide to our McLean service radius β a quick call confirms specifics.
One call to +1-866-476-1348 gets a licensed McLean technician on the schedule β often same-day, 24/7 for real emergencies.
π Call +1-866-476-1348 β McLean 24/7 Line