Halo Water Proofing has been the trusted call for Wet Basement Repair across Markham because we answer the phone, show up when we say, and stand behind the work.
Licensed & insured in VA · Real warranties
We built Halo Water Proofing around a simple promise: show up when we say, tell you the truth about what's wrong, and fix it so it stays fixed.
Our Markham crew leads have handled repairs like yours dozens of times before, and a supervisor signs off before we call any job finished.
Our Markham 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.
One phone call gets you a straight answer and a real appointment — not a vague callback promise.
📞 +1-866-476-1348Most Markham calls didn't start with a flood — they started with one of these small signs weeks or months earlier.
Odor is often the very first clue Markham homeowners notice, well before any water is visible.
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 Markham 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 — this jumps to the front of our Markham schedule.
These upstairs clues usually show up months after the basement moisture problem actually started.
Whatever's going on with your Markham property, chances are we've already fixed something similar nearby this month.
Storm season keeps our Markham emergency line busy — active flooding always jumps ahead of routine inspections in the queue.
Get Emergency Help →Not every crack means a structural problem, but every crack deserves a real look. We'll tell you which kind yours is.
Ask About Crack Repair →A failed sump pump is the top reason for emergency calls across Markham after heavy rain — we install pumps sized to your actual water volume, plus battery backup for power outages.
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 →Older Markham homes with vented crawl spaces see the biggest swings in seasonal humidity — encapsulation closes that off for good.
Get a Crawl Space Quote →Commercial water intrusion means bigger stakes — inventory, tenants, downtime. We scope commercial Markham jobs with written specs and a real timeline.
Request a Commercial Quote →Here's exactly what Markham customers can expect from first call to final walkthrough.
A real technician asks the right questions to understand what's likely happening at your Markham property before anyone drives out.
We point out exactly what we find as we find it, so nothing about the diagnosis feels like a black box.
The number you approve is the number you're billed — no change orders once the crew shows up.
You get documentation of the work plus a real warranty — not just a handshake.
We've heard every Markham 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.
A local dispatch model means the technician who answers your questions is the same one who shows up.
Our major repairs come with written, transferable warranties — useful if you sell the Markham property later.
We'd rather earn a repeat Markham customer with an honest fix than push a system you don't need.
We photograph the damage and provide a written scope your insurance adjuster can actually use.
Word of mouth is still how most Markham 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."
"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."
"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."
"Sump pump inspection was thorough and they didn't try to sell me a new one when mine just needed a part replaced."
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 Markham contract we sign.
📞 +1-866-476-1348Halo Water Proofing covers Markham and the surrounding zip codes — from long-established neighborhoods to newer builds still settling on their foundations.
Coverage in Markham includes 22643 and neighboring communities — if you're just outside that list, call anyway, since we often extend service case by case.
The map below shows our general Markham 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 Markham line is open right now.
📞 Call +1-866-476-1348 — Markham 24/7 Line