Water & Flood Damage Restoration in Tsuen Wan

Immediately. Mould can begin within 24-48 hours and standing water keeps wicking into walls and floors. Professional restorers extract, then run air movers and dehumidifiers for days — the faster drying starts, the less material has to be replaced.

Surface water is the visible part; moisture wicks into drywall, subfloor, insulation and framing where you can't see it. Professionals use moisture meters to confirm materials are dry to spec — skipping structural drying is how you get mould and warped floors weeks later.

Mitigation (extraction and drying) and reconstruction (replacing drywall, flooring, painting) are usually separate phases and sometimes separate contracts. Clarify up front whether your quote covers the rebuild or just the dry-out.

It scales with the water category and the area affected. A single-room clean-water dry-out is a low four-figure job; grey-water across multiple rooms costs several times that; a sewage (black-water) or major flood restoration runs well into five figures. The clean-up is often only stage one before repairs.

Category 1 is clean water from a supply line; Category 2 (grey water) contains contaminants like from a washing machine or dishwasher; Category 3 (black water) is sewage or flood water and is a health hazard. The higher the category, the more removal, disinfection and cost involved.

Single-room dry-outs typically run HKD 3,000-16,000, multi-room jobs HKD 16,000-70,000, and major water events HKD 70,000-280,000 with reinstatement.