Foundation leaking? Basement smells off? Halo Water Proofing sends a real technician to your Herndon property, gives you a straight answer, and fixes it right the first time.
Licensed & insured in VA · Written pricing
Halo Water Proofing started small in the Herndon area and grew because customers kept referring us to their neighbors — that's still how most of our work comes in today.
Every Herndon technician we send is background-checked and trained on the exact equipment we install — not a subcontractor picked up for the day.
We've worked on foundations from decades-old Herndon 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.
One phone call gets you a straight answer and a real appointment — not a vague callback promise.
📞 +1-866-476-1348Most Herndon calls didn't start with a flood — they started with one of these small signs weeks or months earlier.
Odor is often the very first clue Herndon homeowners notice, well before any water is visible.
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.
A wall that's starting to bow is a structural issue on top of a water issue — this jumps to the front of our Herndon schedule.
Flooring that's cupping near an exterior wall often traces straight back to a basement moisture issue below.
From a 2 a.m. sump pump failure to a planned exterior drainage project, here's what our Herndon crews handle most.
When water shows up fast, we move fast — extraction, drying equipment, and a plan to stop it from happening again.
Get Emergency Help →Seasonal ground movement in Herndon tends to widen existing cracks over time, so sealing early usually costs less than waiting.
Ask About Crack Repair →Most Herndon pump failures happen during the exact storms that need them most, which is exactly why battery backup matters.
Book a Pump Check →An interior drain tile system routes water to a sump pump before it reaches your Herndon basement floor at all.
Talk Drainage Options →Musty smell upstairs with no obvious source? Check the crawl space first — it's usually the culprit.
Get a Crawl Space Quote →We can phase larger Herndon commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote →Here's exactly what Herndon 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.
The number you approve is the number you're billed — 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 Herndon 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 — what you approve is what you're billed.
Our crews stage locally near Herndon, which is why most emergency calls get a technician on-site in under two hours.
If a covered repair fails, we come back and fix it. That's part of the contract, not just a promise.
We'd rather earn a repeat Herndon customer with an honest fix than push a system you don't need.
Filing a claim can be confusing — we've walked Herndon customers through this process many times.
Every Herndon job reflects on the next referral, so we treat each one like it matters.
"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."
"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."
"Expected a huge bill for three cracks, only one actually needed injection. Appreciated the honesty."
"Insurance claim was stressful until they stepped in with photos and a written scope. Approved within a week."
"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 — no arguing, no extra invoice. That's written into every Herndon contract we sign.
📞 +1-866-476-1348Our Herndon coverage spans the full metro area, residential and commercial alike.
We cover these Herndon-area zip codes: 20170 20172 22095 20171 — plus nearby communities. One call confirms coverage and gets a technician scheduled.
The map below shows our general Herndon coverage area. Call +1-866-476-1348 to confirm service at your exact address.
One call to +1-866-476-1348 gets a licensed Herndon technician on the schedule — often same-day, 24/7 for real emergencies.
📞 Call +1-866-476-1348 — Herndon 24/7 Line