From a hairline crack to a fully soaked crawl space, our Severn crew has seen it and fixed it. No guesswork, no scare tactics — just a clear plan and a fair price.
Free, no-obligation estimates · Real warranties
Halo Water Proofing is a MD-licensed Interior Drainage System company that treats every Severn job like it's the only one on the schedule.
Every Severn technician we send is background-checked and trained on the exact equipment we install — not a subcontractor picked up for the day.
Our Severn 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 Severn technician today, not an automated queue. We'll explain what's going on and get you scheduled.
📞 +1-866-476-1348Catching one of these early usually means a smaller repair bill and a lot less stress for Severn homeowners.
If the basement smells damp no matter the season, water is likely finding a way in somewhere you can't see.
Stair-step cracking in block foundations is one of the most common early signs our Severn crews see.
Efflorescence is a reliable early sign that water is moving through your Severn foundation wall right now.
A pump under constant strain tends to fail during the exact storm that needs it most.
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 Severn homeowners connect to a basement problem.
No two Severn basements are the same — soil type, age of the home, water table. We match the fix to your actual problem.
When water shows up fast, we move fast — extraction, drying equipment, and a plan to stop it from happening again.
Get Emergency Help →Not 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 →A failed sump pump is the top reason for emergency calls across Severn after heavy rain — we install pumps sized to your actual water volume, plus battery backup for power outages.
Book a Pump Check →An interior drain tile system routes water to a sump pump before it reaches your Severn basement floor at all.
Talk Drainage Options →A damp Severn crawl space drives up humidity throughout the house — we seal it completely with heavy-duty vapor barrier and add dehumidification where needed.
Get a Crawl Space Quote →We can phase larger Severn commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote →No pressure, no scripts — just what actually happens once you call +1-866-476-1348.
A real technician asks the right questions to understand what's likely happening at your Severn property before anyone drives out.
A Severn technician walks the property, checks the foundation and drainage, and explains what's found in plain language.
No verbal number that quietly grows once the truck pulls up — 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.
Plenty of companies advertise Interior Drainage System in Severn — here's what actually separates the ones worth calling from the ones that aren't.
There's no verbal quote that grows once the crew shows up — the written estimate is final.
A local dispatch model means the technician who answers your questions is the same one who shows up.
Warranty terms are explained in plain language before you sign, with no fine-print surprises later.
We'd rather earn a repeat Severn customer with an honest fix than push a system you don't need.
Filing a claim can be confusing — we've walked Severn customers through this process many times.
Our trucks are recognizable around Severn — 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 — 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."
"Straightforward commercial quote, professional crew, no back and forth."
"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."
"Crew was respectful of our landscaping during the drain install and left the yard looking better than before they started."
We back our Severn work with real, transferable warranties because we plan to be here long after the job is done, not just for the one visit.
📞 +1-866-476-1348Our Severn coverage spans the full metro area, residential and commercial alike.
Coverage in Severn includes 21144 21077 21076 and neighboring communities — 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 Severn service radius — a quick call confirms specifics.
The longer water sits against your foundation, the more it costs to fix. Our Severn line is open right now.
📞 Call +1-866-476-1348 — Severn 24/7 Line