Halo Water Proofing has been the trusted call for Basement Waterproofing across Smithtown because we answer the phone, show up when we say, and stand behind the work.
Free, no-obligation estimates · 24/7 dispatch
Halo Water Proofing is a NY-licensed Basement Waterproofing company that treats every Smithtown job like it's the only one on the schedule.
We don't run a bidding war between crews. The Smithtown technician who inspects your property is the same one who does the repair, start to finish.
Our Smithtown 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 Smithtown technician today, not an automated queue. We'll explain what's going on and get you scheduled.
📞 +1-866-476-1348Water problems build slowly before they become emergencies. These are the clues our Smithtown crews hear about most.
Odor is often the very first clue Smithtown homeowners notice, well before any water is visible.
Small cracks in a Smithtown foundation rarely stay small — seasonal ground movement tends to widen them over time.
That white powder on basement walls is mineral residue left behind as water passes through the concrete.
A Smithtown sump pump that never rests is usually undersized or nearing the end of its life.
This is one sign we tell Smithtown customers never to wait on — wall movement tends to progress, not resolve on its own.
These upstairs clues usually show up months after the basement moisture problem actually started.
Whatever's going on with your Smithtown property, chances are we've already fixed something similar nearby this month.
Storm season keeps our Smithtown emergency line busy — active flooding always jumps ahead of routine inspections in the queue.
Get Emergency Help →We seal active Smithtown foundation cracks with polyurethane injection — stopping the leak at its source instead of patching the surface.
Ask About Crack Repair →Already 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 →For yards fighting bad grading, an exterior French drain intercepts water before it ever touches the foundation wall.
Talk Drainage Options →A damp Smithtown 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 Smithtown commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote →Here's exactly what Smithtown customers can expect from first call to final walkthrough.
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 Smithtown quote is written before work starts, not estimated verbally and adjusted later.
Once the job's done, you get written proof of what was installed and exactly what the warranty covers.
We've heard every Smithtown 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 — the written estimate is final.
Our crews stage locally near Smithtown, which is why most emergency calls get a technician on-site in under two hours.
Our major repairs come with written, transferable warranties — useful if you sell the Smithtown property later.
We'd rather earn a repeat Smithtown customer with an honest fix than push a system you don't need.
Filing a claim can be confusing — we've walked Smithtown customers through this process many times.
Word of mouth is still how most Smithtown customers find us, which keeps our standards high.
"Woke up to a wet basement and had someone out by mid-morning. No pressure, no upsell, just fixed it."
"Got three quotes for a crack repair. This was the only company that actually explained why the crack was happening instead of just naming a price."
"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."
"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."
Every Smithtown 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.
📞 +1-866-476-1348Our Smithtown coverage spans the full metro area, residential and commercial alike.
Zip codes we serve in and around Smithtown: 11787. Not sure your address is included? Call +1-866-476-1348 and we'll confirm right away.
The map below shows our general Smithtown coverage area. Call +1-866-476-1348 to confirm service at your exact address.
One call to +1-866-476-1348 gets a licensed Smithtown technician on the schedule — often same-day, 24/7 for real emergencies.
📞 Call +1-866-476-1348 — Smithtown 24/7 Line