When water gets in, the damage clock starts immediately. COS Water Damage Restoration's Markham Emergency Water Removal crew carries professional-grade extraction systems to every job, arriving fast and working fast to limit the scope of what gets damaged.
The right water removal team in Markham gets to you fast, removes the water completely, and transitions immediately to structural protection — not a service that extracts visible water and leaves hidden moisture to fuel mold growth.
Your water removal response time is directly determined by where the crew is based. Ours is based in Markham.
We don't turn jobs away based on contamination category. Our Markham crew handles Cat 1 through Cat 3 with the proper protocols for each.
No surprise billing after the fact — your written estimate is your price, period.
We document everything at the extraction phase — before conditions change and evidence is lost.
Every Emergency Water Removal scenario requires the right equipment, the right technique, and the right team. Here's what we handle in Markham.
Rapid volume removal at this stage prevents saturation from reaching framing and subfloor materials.
Pipe failures in Markham properties — whether from freeze-thaw cycles, corrosion, or pressure failure — release clean or lightly contaminated water rapidly into wall assemblies and floor cavities. Our Markham crews arrive with injection drying adapters specifically for pipe-failure scenarios where water has traveled behind drywall before it reached the floor.
After extraction, crawlspace vapor barrier inspection and replacement prevents recurring moisture accumulation.
We never use standard extraction equipment on contaminated water events — cross-contamination risk is real, and proper equipment matters.
Dishwasher failures, washing machine overflows, refrigerator line leaks, and water heater ruptures in Markham homes release water that travels quickly across hard surfaces and wicks under baseboards and into subfloor materials. Even small appliance events can saturate significant square footage if not caught and extracted within hours of the failure.
We produce the detailed commercial loss documentation that commercial insurance adjusters require.


Call +1-844-499-0972 and a live dispatcher answers immediately — no voicemail, no automated menu, no hold queue. Your dispatcher identifies the closest Markham crew, confirms availability, and dispatches within the first few minutes of your call.
Our Markham Emergency Water Removal crew loads the extraction equipment specific to your scenario during transit so they're productive within minutes of arrival. Our target is on-site in 60 minutes or less, with your dispatcher providing real-time updates if conditions change en route.
No equipment gets placed without your written approval of the scope and cost.
Extraction continues until standing water is completely eliminated and surface moisture is at levels appropriate for structural drying handoff. Our crew immediately stages dehumidifiers and air movers to begin the drying phase — preventing the 24-48 hour mold risk window from opening.



"A pipe burst in our Markham home's basement at 11 p.m. on a Saturday. I was bracing for a long night of being on hold. COS Water Damage Restoration answered on the second ring, had a crew at my door in 52 minutes, and the standing water was completely out before 2 a.m. They stayed to set up the drying equipment and I woke up to a dehumidifier running and a dry basement floor. Absolutely excellent."
"My Markham rental had a Category 3 sewage backup and I honestly didn't know who to call. COS Water Damage Restoration handled the entire thing — proper containment, professional extraction with the right equipment for contaminated water, and antimicrobial treatment before they left. My tenants were back in within the timeline they promised. Transparent, professional, and they charged exactly what they quoted."
"Three different companies told me they could help with our Markham storm flooding. Only COS Water Damage Restoration showed up with a truck-mounted extraction unit instead of a few shop vacs. The difference in output was enormous — they pulled the water out in a fraction of the time I expected. Highly recommend calling them first."
Our Markham-based crew serves nearby communities with the same fast, professional water removal that Markham residents rely on.
Our Markham Emergency Water Removal crew is on standby right now. Call +1-844-499-0972 and we'll have a team at your door in under an hour.
📞 Call +1-844-499-0972 — Markham Emergency Dispatch24/7 Live Dispatch · All Water Categories · Upfront Pricing · Markham, VA