A flood event in Big Lake brings everything the water touched into contact with contaminants from storm drains, sewage lines, and surface runoff. The cleanup process has to account for all of it — not just the visible mess.
Here's what COS Water Damage Restoration brings to every Flood Damage Cleanup job in Big Lake that separates genuine flood recovery from a surface cleanup.
Flood water in Big Lake is classified as Category 2 or Category 3 — containing contaminants from storm drains, agricultural runoff, or sewage intrusion. Our crew uses the correct containment, PPE, extraction equipment, and disposal procedures for contaminated water events — not standard water damage methods.
We're based in Big Lake, not dispatched from a regional hub. That's what makes fast response possible.
Flood events deposit sediment, debris, and waterlogged materials that standard water damage cleanup doesn't address. Our Big Lake team handles full debris removal — furniture, flooring, drywall that can't be salvaged, sediment deposits — and disposes of it properly before structural drying begins.
Even in a flood emergency in Big Lake, no work starts without a written estimate you've reviewed and approved. Xactimate-based pricing formatted to your insurance carrier's standards means faster claim processing and no discrepancy between our bill and your adjuster's scope.
COS Water Damage Restoration's Big Lake flood team handles the complete recovery process — from the first pump-out through final antimicrobial treatment and reconstruction. Each phase requires specific expertise and equipment.
Rapid pumping prevents ongoing contamination spread and limits the total square footage of affected structural materials.
Incomplete debris removal under drying equipment is one of the most common sources of post-flood mold in Big Lake properties.
Treatment is applied to framing, subfloor sheathing, concrete, and masonry before drying begins — not after.
Post-flood structural drying in Big Lake is more complex than standard water damage drying because contaminated events often require partial material removal (wet drywall, insulation, flooring) to access structural assemblies for drying. Our Big Lake drying crew deploys calibrated LGR dehumidifiers and air movers after material removal and antimicrobial treatment, taking daily moisture readings at fixed sensor points until all assemblies reach documented equilibrium moisture content targets.
We file the claim, coordinate the adjuster visit, and follow the settlement through — so you're not navigating the insurance complexity on top of the property damage.
One company from flood water to finished restoration. No handoffs, no coordination gap.


Flooding doesn't wait, and neither do we. Live dispatch, immediate crew deployment.
Flood cleanup requires flood-specific equipment. Our Big Lake crews arrive prepared for the full scenario.
Before any work begins, our Big Lake team conducts a complete flood damage assessment: water category determination, contamination extent mapping, debris volume evaluation, and structural material viability review. A written, Xactimate-based estimate is prepared and reviewed with you before any pumping or removal starts.
Pumping, extraction, debris removal, antimicrobial treatment, structural drying, and reconstruction proceed under your approved scope. Daily progress updates keep you informed, and final sign-off happens with you at a completed walkthrough.



"Our Big Lake restaurant flooded during a major storm event. COS Water Damage Restoration handled the flood cleanup with commercial-scale equipment, coordinated around our equipment and walk-in units to protect anything salvageable, and had us reopened four days sooner than any other company we got quotes from. The insurance documentation they prepared was detailed enough that our adjuster approved the scope on the first submission. Outstanding."
"The antimicrobial treatment step was what convinced me that COS Water Damage Restoration knew what they were doing. After flood water, every company I talked to mentioned drying — but only COS Water Damage Restoration specifically walked me through the contamination treatment that happens before drying starts. That's the step that prevents mold, and they didn't skip it to save time or money. Our Big Lake home came out of the restoration clean and structurally sound."
"The estimate conversation before any work started was exactly what I needed. After a flood you feel powerless — the written pricing discussion gave me back a sense of control. I knew what was happening, why, and what it would cost before anything began. COS Water Damage Restoration's Big Lake team was professional from the first phone call to the final walkthrough."
COS Water Damage Restoration's Big Lake flood cleanup team serves Big Lake and surrounding communities throughout WA. Call +1-844-499-0972 to confirm same-day coverage at your address.
Storm flooding doesn't clean itself up and it doesn't improve with time. Call +1-844-499-0972 and our Big Lake flood cleanup crew is on the way — typically within 60 minutes.
📞 Call +1-844-499-0972 — Big Lake Flood Response24/7 Dispatch · IICRC Certified · Contamination Protocols · Big Lake, WA