Halo Water Proofing has been the trusted call for Exterior Waterproofing across Annandale because we answer the phone, show up when we say, and stand behind the work.
Licensed & insured in VA Β· Real warranties

Halo Water Proofing is a VA-licensed Exterior Waterproofing company that treats every Annandale job like it's the only one on the schedule.
Every Annandale 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 Annandale 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 β not a vague callback promise.
π +1-866-476-1348Catching one of these early usually means a smaller repair bill and a lot less stress for Annandale homeowners.
Odor is often the very first clue Annandale 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.
That white powder on basement walls is mineral residue left behind as water passes through the concrete.
If your pump only shuts off for a few minutes at a time, it's worth having it checked before it fails outright.
If a foundation wall looks like it's curving inward, that's beyond a simple patch and needs a real assessment.
Peeling paint near the floor upstairs is one of the last signs Annandale homeowners connect to a basement problem.
Whatever's going on with your Annandale property, chances are we've already fixed something similar nearby this month.
A flooded Annandale basement doesn't wait for morning, and neither do we. Our crews get it out and start drying the space the same visit.
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 βA failed sump pump is the top reason for emergency calls across Annandale 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 βOlder Annandale homes with vented crawl spaces see the biggest swings in seasonal humidity β encapsulation closes that off for good.
Get a Crawl Space Quote βWe can phase larger Annandale commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote βNo pressure, no scripts β just what actually happens once you call +1-866-476-1348.
You'll talk to a person, not a script β enough of a conversation to know what to expect before anyone shows up.
A Annandale technician walks the property, checks the foundation and drainage, and explains what's found in plain language.
The number you approve is the number you're billed β no change orders once the crew shows up.
You get documentation of the work plus a real warranty β not just a handshake.
We've heard every Annandale 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.
Warranty terms are explained in plain language before you sign, with no fine-print surprises later.
If your Annandale basement just needs a small crack seal instead of a full system, that's exactly what we'll tell you.
We photograph the damage and provide a written scope your insurance adjuster can actually use.
Our trucks are recognizable around Annandale 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."
"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."
"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."
We back our Annandale work with real, transferable warranties because we plan to be here long after the job is done, not just for the one visit.
π +1-866-476-1348Our Annandale coverage spans the full metro area, residential and commercial alike.
We cover these Annandale-area zip codes: 22003 22042 β plus nearby communities. One call confirms coverage and gets a technician scheduled.
Use the map as a guide to our Annandale service radius β a quick call confirms specifics.
The longer water sits against your foundation, the more it costs to fix. Our Annandale line is open right now.
π Call +1-866-476-1348 β Annandale 24/7 Line