From a hairline crack to a fully soaked crawl space, our White Marsh crew has seen it and fixed it. No guesswork, no scare tactics — just a clear plan and a fair price.
Licensed & insured in MD · 24/7 dispatch
Halo Water Proofing is a MD-licensed Exterior Waterproofing company that treats every White Marsh job like it's the only one on the schedule.
We don't run a bidding war between crews. The White Marsh technician who inspects your property is the same one who does the repair, start to finish.
Our White Marsh crew leads carry years of hands-on repair experience, not just sales training — which is why the advice you get on-site tends to match what actually needs fixing.
Talk to a real White Marsh technician today, not an automated queue. We'll explain what's going on and get you scheduled.
📞 +1-866-476-1348Water problems build slowly before they become emergencies. These are the clues our White Marsh crews hear about most.
A musty smell usually means moisture is already moving through your White Marsh basement, even if the floor looks bone dry.
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.
A pump under constant strain tends to fail during the exact storm that needs it most.
This is one sign we tell White Marsh customers never to wait on — wall movement tends to progress, not resolve on its own.
Peeling paint near the floor upstairs is one of the last signs White Marsh homeowners connect to a basement problem.
No two White Marsh basements are the same — soil type, age of the home, water table. We match the fix to your actual problem.
A flooded White Marsh 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 →We seal active White Marsh foundation cracks with epoxy injection — stopping the leak at its source instead of patching the surface.
Ask About Crack Repair →Already have a pump that's struggling? We'll test it honestly and tell you whether it needs replacing or just a tune-up.
Book a Pump Check →For yards fighting bad grading, an exterior French drain intercepts water before it ever touches the foundation wall.
Talk Drainage Options →Older White Marsh homes with vented crawl spaces see the biggest swings in seasonal humidity — encapsulation closes that off for good.
Get a Crawl Space Quote →We can phase larger White Marsh commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote →Here's exactly what White Marsh customers can expect from first call to final walkthrough.
You'll talk to a person, not a script — enough of a conversation to know what to expect before anyone shows up.
We point out exactly what we find as we find it, so nothing about the diagnosis feels like a black box.
Every White Marsh quote is written before work starts, not estimated verbally and adjusted later.
Our crew completes the repair, cleans up, and walks you through the warranty on what was installed.
We've heard every White Marsh horror story about contractors who disappear mid-job or pad the invoice. Here's how we do it differently.
We quote the job in writing after seeing it in person, so there's no surprise on the final invoice.
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.
If your White Marsh basement just needs a small crack seal instead of a full system, that's exactly what we'll tell you.
Filing a claim can be confusing — we've walked White Marsh customers through this process many times.
Word of mouth is still how most White Marsh customers find us, which keeps our standards high.
"Called during a storm and had a tech at my door within two hours. Explained everything before touching anything — basement's been dry since."
"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."
"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."
"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."
We back our White Marsh work with real, transferable warranties because we plan to be here long after the job is done, not just for the one visit.
📞 +1-866-476-1348Whether you're in an older, established part of White Marsh or a newer subdivision still settling, we've likely already worked on a foundation like yours nearby.
We cover these White Marsh-area zip codes: 21236 21128 21237 21162 — plus nearby communities. One call confirms coverage and gets a technician scheduled.
The map below shows our general White Marsh 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 White Marsh line is open right now.
📞 Call +1-866-476-1348 — White Marsh 24/7 Line