water damage
Water damage: what to do in the first 24 hours
Mold begins forming within 24–48 hours of a leak. Here's the homeowner triage that saves you thousands.
By FixItDial Editorial · 2026-06-05
Water damage gets exponentially worse with every hour of delay. Mold spores germinate within 24–48 hours. Here's what to do in the first day.
Hour 1: stop the water
Find the water shutoff valve (usually near the meter, or where the main line enters the house) and close it. If a leak is from a single appliance, the local shutoff valve under the appliance is faster.
Hour 2: document everything
Take photos of every wet surface, every wet object, the source of the leak, and any visible damage. Insurance adjusters will reject claims without proof of the original state.
Hour 3–6: extract standing water
Wet-vacs and mops work for under an inch. Above that, you need a professional water-damage restoration crew with truck-mounted extraction equipment. Every hour of delay raises the eventual restoration bill by 5–10%.
Hour 24: dehumidifiers running
Even after visible water is gone, the wall cavities, sub-floor, and insulation hold massive amounts of trapped moisture. Industrial dehumidifiers running 24/7 for 3–7 days are standard.
IICRC certification matters
The Institute of Inspection, Cleaning and Restoration Certification (IICRC) is the gold standard for water-damage pros. Every restoration provider on FixItDial holds active IICRC certification and can bill your insurance directly.
Need a water damage pro right now?
Find a 24/7 water damage pro on FixItDial →Top 24/7 water damage pros in the USA — call now
BELFOR Property Restoration — Water Damage
Roto-Rooter — 24/7 Plumbing & Drain
Roto-Rooter — 24/7 Plumbing & Drain
Precision Garage Door Service — Garage Door
Sears Home Services Appliance — Appliance Repair
One Hour Heating & Air Conditioning
One Hour Heating & Air Conditioning
College Hunks Hauling Junk — Junk Removal
Water Damage cost estimator
Water Damage Restoration cost calculator
Independent estimates compiled from public cost guides. Actual quote may differ.
Estimated total range
$600 – $4,740
Typical: $1,700
Estimate includes ~$200 typical service-call fee.
National service-call fee: $100–$400 · Hourly rate: $75–$300/hr
Related guides
water damage
What Happens in the First 24 Hours After Water Damage? Timeline & Action Steps
The first 24 hours after water damage determine whether you face minor repairs or major structural issues. Mold begins growing within 24-48 hours, and materials like drywall absorb water rapidly.
water damage
Water Damage Restoration: DIY vs Professional Help in 2024
Minor water damage like small spills can be DIY-cleaned within 24-48 hours, but structural damage, sewage backup, or mold growth requires professional restoration to prevent health risks and costly long-term damage.
water damage
Water Damage Timeline: Why the First 24 Hours After a Storm Matter Most
Water damage from storms becomes exponentially worse every hour. Mold starts growing within 24-48 hours, structural damage accelerates, and repair costs can triple if you wait beyond the first day.