From a hairline foundation crack to a fully flooded crawl space, Halo Water Proofing has handled it in De Pere before. We show up, we diagnose it straight, and we fix it right.

Halo Water Proofing started as a small WI crew and grew because De Pere customers kept referring us to neighbors — that's still how most of our work comes in today.

Every technician on our De Pere crew is background-checked, factory-trained on the equipment we install, and held to the same estimate we quote you over the phone — no upsell surprises when the truck pulls up.
One call gets you a straight answer and a real appointment window — not a call-back promise.
📞 +1-866-476-1348Water problems rarely announce themselves all at once — they usually show up as small clues first. Here's what our De Pere technicians hear about most often before an inspection.
A musty smell in the basement or crawl space is usually moisture you can't see yet, not just "old house smell."
Stair-step cracks in block foundations are a common early warning sign we see across De Pere-area homes.
That white chalky film on basement walls is efflorescence — mineral deposits left behind as water evaporates through concrete.
If your pump is running around the clock instead of only during storms, it's worth having it evaluated before it fails completely.
If a foundation wall looks like it's leaning or bulging inward, that's beyond a simple seal and needs a full assessment.
Flooring that's cupping or warping near an exterior wall is a common clue our De Pere crews trace back to a drainage issue.
From an emergency pump swap at 2 a.m. to a full exterior drainage system, this is the work we do in De Pere every day.
Storm season in De Pere, WI means our emergency line gets busy fast — we triage calls by severity so active flooding at your De Pere address jumps the queue ahead of routine inspections.
Call for Emergency Service →Freeze-thaw cycles in De Pere, WI push existing cracks wider every winter, which is why we recommend sealing them before they become an active leak rather than after.
Get a Crack Assessment →Most sump pump failures we see in De Pere happen during the exact storms that need them most — a battery backup closes that gap when the power drops.
Schedule a Pump Inspection →For De Pere properties fighting grading or drainage issues, an exterior French drain can intercept water before it ever reaches the foundation wall at all. We map your yard's slope and water flow before recommending which approach fits.
Ask About Drain Systems →Older De Pere homes with vented crawl spaces are especially prone to seasonal moisture swings — encapsulation closes that off for good.
Get a Crawl Space Quote →We work directly with De Pere property managers and business owners on below-grade waterproofing, parking structure sealing, and large-scale drainage corrections — scheduled around your operating hours.
Request a Commercial Quote →Here's exactly what to expect once you call +1-866-476-1348 for Sump Pump Installation in De Pere.
We start with a phone conversation, not a script — enough to know whether this is an emergency dispatch or a scheduled inspection.
A technician inspects the De Pere property in person, checking the foundation, drainage, grading, and any active moisture before recommending a fix.
You receive a written, itemized quote before any work begins — the number you approve is the number you're billed.
Our crew completes the work, cleans up the site, and walks you through the warranty coverage on what was installed.
You get a written number before any work begins — the price you approve is the price you pay, no change-order games.
A local dispatch model means the technician who answers questions about your De Pere job is the same one who shows up to do it.
Our repairs come with written, transferable warranties — a real asset if you sell the De Pere property later.
We'd rather earn a repeat customer with an honest small fix than push a system you don't need.
We document the damage with photos and a written scope your insurance adjuster can actually use, and we'll walk you through the claim process.
Every De Pere job reflects on the next referral, so we treat each one like it's the only advertising that matters.
"They came out the same afternoon I called about water coming in during a storm. Explained everything before they touched anything. Basement's been bone dry since."
"Fair price, showed up on time, cleaned up after themselves. Wish more contractors worked like this."
"Crawl space smelled awful for years. Encapsulation crew did a clean job and the smell is completely gone upstairs now."
"Straightforward commercial quote, no back-and-forth, crew was professional the whole project."
"We had three foundation cracks and expected a huge bill. Turned out only one needed injection — they didn't try to sell us on the other two. That honesty is rare."
"Technician actually explained why the water was coming in instead of just quoting a number. First contractor who's done that for us."
Whether you're in the older, established parts of De Pere or a newer subdivision still settling, our crews have likely already worked on a foundation like yours nearby.
We cover the following De Pere-area zip codes: 54115 54344 — plus nearby communities. One call confirms coverage and gets a technician scheduled.
The map below shows our general De Pere coverage footprint. Call +1-866-476-1348 any time to confirm service at your specific address.
One call to +1-866-476-1348 gets a licensed De Pere technician scheduled — often the same day, 24/7 for active emergencies.
📞 Call +1-866-476-1348 — De Pere 24/7 Line