From a hairline crack to a fully soaked crawl space, our Annapolis crew has seen it and fixed it. No guesswork, no scare tactics β just a clear plan and a fair price.
Background-checked Annapolis technicians Β· Written pricing

Halo Water Proofing is a MD-licensed Interior Drainage System company that treats every Annapolis job like it's the only one on the schedule.
Our Annapolis crew leads have handled repairs like yours dozens of times before, and a supervisor signs off before we call any job finished.
Our Annapolis crew leads carry years of hands-on repair experience, not just sales training β which is why the advice you get on-site tends to match what actually needs fixing.
Talk to a real Annapolis technician today, not an automated queue. We'll explain what's going on and get you scheduled.
π +1-866-476-1348Water problems build slowly before they become emergencies. These are the clues our Annapolis crews hear about most.
A musty smell usually means moisture is already moving through your Annapolis 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 Annapolis sump pump that never rests is usually undersized or nearing the end of its life.
If a foundation wall looks like it's curving inward, that's beyond a simple patch and needs a real assessment.
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 Annapolis crews handle most.
A flooded Annapolis basement doesn't wait for morning, and neither do we. Our crews pull the standing water 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 βMost Annapolis pump failures happen during the exact storms that need them most, which is exactly why battery backup matters.
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 βMusty smell upstairs with no obvious source? Check the crawl space first β it's usually the culprit.
Get a Crawl Space Quote βWe handle below-grade waterproofing for Annapolis property managers and business owners, scheduled around your operating hours to limit disruption.
Request a Commercial Quote βHere's exactly what Annapolis customers can expect from first call to final walkthrough.
You'll talk to a person, not a script β 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.
No verbal number that quietly grows once the truck pulls up β the written quote is the final word.
Our crew completes the repair, cleans up, and walks you through the warranty on what was installed.
We've heard every Annapolis 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.
If a covered repair fails, we come back and fix it. That's part of the contract, not just a promise.
If your Annapolis 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.
Every Annapolis job reflects on the next referral, so we treat each one like it matters.
"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."
If a covered repair doesn't hold up, we come back and make it right β no arguing, no extra invoice. That's written into every Annapolis contract we sign.
π +1-866-476-1348Halo Water Proofing covers Annapolis and the surrounding zip codes β from long-established neighborhoods to newer builds still settling on their foundations.
Coverage in Annapolis includes 21401 21403 21404 21411 21402 21405 21409 and neighboring communities β 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 Annapolis service radius β a quick call confirms specifics.
One call to +1-866-476-1348 gets a licensed Annapolis technician on the schedule β often same-day, 24/7 for real emergencies.
π Call +1-866-476-1348 β Annapolis 24/7 Line