Halo Water Proofing has been the trusted call for Exterior Waterproofing across Great Neck because we answer the phone, show up when we say, and stand behind the work.
Licensed & insured in NY · 24/7 dispatch
Halo Water Proofing is a NY-licensed Exterior Waterproofing company that treats every Great Neck job like it's the only one on the schedule.
Every Great Neck technician we send is background-checked and trained on the exact equipment we install — not a subcontractor picked up for the day.
We've worked on foundations from decades-old Great Neck homes to brand-new builds still settling into their soil, so whatever your basement is dealing with, we've likely seen a version of it nearby.
One phone call gets you a straight answer and a real appointment — not a vague callback promise.
📞 +1-866-476-1348Catching one of these early usually means a smaller repair bill and a lot less stress for Great Neck homeowners.
If the basement smells damp no matter the season, water is likely finding a way in somewhere you can't see.
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 pump under constant strain tends to fail during the exact storm that needs it most.
If a foundation wall looks like it's curving inward, that's beyond a simple patch and needs a real assessment.
These upstairs clues usually show up months after the basement moisture problem actually started.
No two Great Neck basements are the same — soil type, age of the home, water table. We match the fix to your actual problem.
A flooded Great Neck 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 →We seal active Great Neck foundation cracks with hydraulic cement 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 →An interior drain tile system routes water to a sump pump before it reaches your Great Neck basement floor at all.
Talk Drainage Options →Musty smell upstairs with no obvious source? Check the crawl space first — it's usually the culprit.
Get a Crawl Space Quote →We can phase larger Great Neck commercial projects around business hours or tenant schedules so operations keep running.
Request a Commercial Quote →Here's exactly what Great Neck 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.
No verbal number that quietly grows once the truck pulls up — 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 Great Neck 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 — what you approve is what you're billed.
We're not routing your call through a national center — 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.
We'd rather earn a repeat Great Neck customer with an honest fix than push a system you don't need.
Filing a claim can be confusing — we've walked Great Neck customers through this process many times.
Every Great Neck 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 — 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."
"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."
If a covered repair doesn't hold up, we come back and make it right — no arguing, no extra invoice. That's written into every Great Neck contract we sign.
📞 +1-866-476-1348Halo Water Proofing covers Great Neck and the surrounding zip codes — from long-established neighborhoods to newer builds still settling on their foundations.
Zip codes we serve in and around Great Neck: 11024 11023 11027 11020 11021. Not sure your address is included? Call +1-866-476-1348 and we'll confirm right away.
Use the map as a guide to our Great Neck service radius — a quick call confirms specifics.
One call to +1-866-476-1348 gets a licensed Great Neck technician on the schedule — often same-day, 24/7 for real emergencies.
📞 Call +1-866-476-1348 — Great Neck 24/7 Line