From a hairline crack to a fully soaked crawl space, our Markesan crew has seen it and fixed it. No guesswork, no scare tactics โ just a clear plan and a fair price.
Free, no-obligation estimates ยท Written pricing

Halo Water Proofing is a WI-licensed Waterproofing company that treats every Markesan job like it's the only one on the schedule.
Every Markesan technician we send is background-checked and trained on the exact equipment we install โ not a subcontractor picked up for the day.
Our Markesan 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.
Talk to a real Markesan technician today, not an automated queue. We'll explain what's going on and get you scheduled.
๐ +1-866-476-1348Catching one of these early usually means a smaller repair bill and a lot less stress for Markesan homeowners.
Odor is often the very first clue Markesan homeowners notice, well before any water is visible.
Stair-step cracking in block foundations is one of the most common early signs our Markesan crews see.
It's easy to mistake efflorescence for harmless dust, but it actually signals active moisture movement.
If your pump only shuts off for a few minutes at a time, it's worth having it checked before it fails outright.
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.
Whatever's going on with your Markesan property, chances are we've already fixed something similar nearby this month.
Storm season keeps our Markesan emergency line busy โ active flooding always jumps ahead of routine inspections in the queue.
Get Emergency Help โWe seal active Markesan foundation cracks with polyurethane injection โ stopping the leak at its source instead of patching the surface.
Ask About Crack Repair โA failed sump pump is the top reason for emergency calls across Markesan after heavy rain โ we install pumps sized to your actual water volume, plus battery backup for power outages.
Book a Pump Check โAn interior drain tile system routes water to a sump pump before it reaches your Markesan basement floor at all.
Talk Drainage Options โMusty smell upstairs with no obvious source? Check the crawl space first โ it's usually the culprit.
Get a Crawl Space Quote โWe handle below-grade waterproofing for Markesan 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.
No jargon, no pressure โ just a clear look at what's actually going on.
No verbal number that quietly grows once the truck pulls up โ 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.
We've heard every Markesan horror story about contractors who disappear mid-job or pad the invoice. Here's how we do it differently.
There's no verbal quote that grows once the crew shows up โ the written estimate is final.
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 Markesan 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 Markesan 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 โ 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."
"Crew was respectful of our landscaping during the drain install and left the yard looking better than before they started."
Every Markesan 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 +1-866-476-1348Halo Water Proofing covers Markesan and the surrounding zip codes โ from long-established neighborhoods to newer builds still settling on their foundations.
Coverage in Markesan includes 53946 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 Markesan 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 Markesan line is open right now.
๐ Call +1-866-476-1348 โ Markesan 24/7 Line