Foundation leaking? Basement smells off? Halo Water Proofing sends a real technician to your Olney property, gives you a straight answer, and fixes it right the first time.
Free, no-obligation estimates ยท Written pricing

Halo Water Proofing is a MD-licensed Interior Drainage System company that treats every Olney job like it's the only one on the schedule.
Our Olney 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 Olney 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 Olney technician today, not an automated queue. We'll explain what's going on and get you scheduled.
๐ +1-866-476-1348Water problems build slowly before they become emergencies. These are the clues our Olney crews hear about most.
Odor is often the very first clue Olney homeowners notice, well before any water is visible.
Small cracks in a Olney foundation rarely stay small โ seasonal ground movement tends to widen them over time.
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.
A wall that's starting to bow is a structural issue on top of a water issue โ this jumps to the front of our Olney schedule.
These upstairs clues usually show up months after the basement moisture problem actually started.
From a 2 a.m. sump pump failure to a planned exterior drainage project, here's what our Olney crews handle most.
When water shows up fast, we move fast โ extraction, drying equipment, and a plan to stop it from happening again.
Get Emergency Help โNot 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 โA failed sump pump is the top reason for emergency calls across Olney after heavy rain โ we install pumps sized to your actual water volume, plus battery backup for power outages.
Book a Pump Check โFor yards fighting bad grading, an exterior French drain intercepts water before it ever touches the foundation wall.
Talk Drainage Options โMusty smell upstairs with no obvious source? Check the crawl space first โ it's usually the culprit.
Get a Crawl Space Quote โWe can phase larger Olney commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote โHere's exactly what Olney customers can expect from first call to final walkthrough.
A real technician asks the right questions to understand what's likely happening at your Olney property before anyone drives out.
A Olney 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 โ no change orders once the crew shows up.
You get documentation of the work plus a real warranty โ not just a handshake.
Plenty of companies advertise Interior Drainage System in Olney โ here's what actually separates the ones worth calling from the ones that aren't.
You get a real number before any work starts โ what you approve is what you're billed.
A local dispatch model means the technician who answers your questions is the same one who shows up.
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 Olney customer with an honest fix than push a system you don't need.
We can supply the documentation most carriers ask for before approving a Olney claim.
Our trucks are recognizable around Olney โ 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 โ 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."
"Crew was respectful of our landscaping during the drain install and left the yard looking better than before they started."
We back our Olney work with real, transferable warranties because we plan to be here long after the job is done, not just for the one visit.
๐ +1-866-476-1348Whether you're in an older, established part of Olney or a newer subdivision still settling, we've likely already worked on a foundation like yours nearby.
Zip codes we serve in and around Olney: 20860 20832 20833 20853 20906 20830. Not sure your address is included? Call +1-866-476-1348 and we'll confirm right away.
The map below shows our general Olney 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 Olney line is open right now.
๐ Call +1-866-476-1348 โ Olney 24/7 Line