From a hairline crack to a fully soaked crawl space, our Larsen crew has seen it and fixed it. No guesswork, no scare tactics โ just a clear plan and a fair price.
Background-checked Larsen technicians ยท Real warranties

Halo Water Proofing is a WI-licensed Crawl Space Encapsulation company that treats every Larsen job like it's the only one on the schedule.
We don't run a bidding war between crews. The Larsen technician who inspects your property is the same one who does the repair, start to finish.
Our Larsen crew leads carry years of hands-on repair experience, not just sales training โ which is why the advice you get on-site tends to match what actually needs fixing.
One phone call gets you a straight answer and a real appointment โ not a vague callback promise.
๐ +1-866-476-1348Catching one of these early usually means a smaller repair bill and a lot less stress for Larsen homeowners.
A musty smell usually means moisture is already moving through your Larsen 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.
It's easy to mistake efflorescence for harmless dust, but it actually signals active moisture movement.
A Larsen sump pump that never rests is usually undersized or nearing the end of its life.
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 Larsen schedule.
These upstairs clues usually show up months after the basement moisture problem actually started.
No two Larsen basements are the same โ soil type, age of the home, water table. We match the fix to your actual problem.
Storm season keeps our Larsen emergency line busy โ active flooding always jumps ahead of routine inspections in the queue.
Get Emergency Help โSeasonal ground movement in Larsen tends to widen existing cracks over time, so sealing early usually costs less than waiting.
Ask About Crack Repair โAlready 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 โSome Larsen properties need both systems working together โ we'll say so honestly instead of selling just one.
Talk Drainage Options โOlder Larsen homes with vented crawl spaces see the biggest swings in seasonal humidity โ encapsulation closes that off for good.
Get a Crawl Space Quote โWe handle below-grade waterproofing for Larsen property managers and business owners, scheduled around your operating hours to limit disruption.
Request a Commercial Quote โNo pressure, no scripts โ just what actually happens once you call +1-866-476-1348.
We figure out fast whether this needs an emergency dispatch or a scheduled inspection.
We point out exactly what we find as we find it, so nothing about the diagnosis feels like a black box.
Every Larsen quote is written before work starts, not estimated verbally and adjusted later.
You get documentation of the work plus a real warranty โ not just a handshake.
We've heard every Larsen 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.
We're not routing your call through a national center โ the person who answers is close by.
Warranty terms are explained in plain language before you sign, with no fine-print surprises later.
Our technicians are trained to diagnose accurately, not to upsell โ that changes the advice you actually get.
Filing a claim can be confusing โ we've walked Larsen customers through this process many times.
Word of mouth is still how most Larsen 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 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."
"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."
"Sump pump inspection was thorough and they didn't try to sell me a new one when mine just needed a part replaced."
Every Larsen technician we send is background-checked and trained on the systems we install, so the crew that inspects your property is the same one that fixes it.
๐ +1-866-476-1348Our Larsen coverage spans the full metro area, residential and commercial alike.
Coverage in Larsen includes 54947 and neighboring communities โ if you're just outside that list, call anyway, since we often extend service case by case.
The map below shows our general Larsen coverage area. Call +1-866-476-1348 to confirm service at your exact address.
One call to +1-866-476-1348 gets a licensed Larsen technician on the schedule โ often same-day, 24/7 for real emergencies.
๐ Call +1-866-476-1348 โ Larsen 24/7 Line