When water gets into your home — a burst supply line, a failed water heater, an overflowing washing machine — the clock starts immediately. Mold can begin colonizing wet drywall within 24 to 48 hours, and every hour of standing water increases the damage your insurance adjuster will eventually be evaluating. Here's exactly what to do, in order.

Hour 0–1: Stop the water and stay safe

  • Shut off the source. For plumbing failures, close the fixture's angle stop or the main shutoff valve. In most San Diego homes, the main is near the front hose bib or at the water meter by the curb.
  • Kill power to wet areas. If water is anywhere near outlets, appliances, or your panel, switch off the affected breakers. Never stand in water while touching electrical equipment.
  • Check for sewage. If the water is gray or black or smells foul, treat it as contaminated. Keep children and pets away and leave cleanup to professionals — Category 2 and 3 water carries real health risks.

Hour 1–3: Document everything before you touch anything

Your insurance claim depends on what you can prove. Before moving furniture or mopping up:

  • Take photos and video of standing water, the source of the leak, and every affected room.
  • Photograph serial numbers and labels of damaged appliances and electronics.
  • Save the failed part if you can (the burst hose, the cracked fitting) — adjusters ask for it.
  • Start a written timeline: when you discovered the water, what you did, who you called.

California insurers generally cover sudden and accidental water damage, but they routinely dispute claims where documentation is thin. Twenty minutes with your phone camera can be worth thousands of dollars later.

Hour 3–8: Remove water and start airflow

  • Mop, towel, or wet-vac standing water from hard surfaces.
  • Move furniture out of wet rooms; put foil or blocks under legs you can't move.
  • Lift rugs off wet floors. Pull back wet carpet edges where possible.
  • Open windows and run fans — but only if outdoor humidity is low. On a foggy San Diego morning, outside air can make things worse; use the AC instead, which dehumidifies as it cools.

Hour 8–24: Call in professional drying

This is where most homeowners underestimate the problem. Surfaces that feel dry to the touch can hide saturated drywall, insulation, and subfloor. Professional water damage restoration uses moisture meters and thermal cameras to map how far the water actually traveled, then commercial air movers and dehumidifiers to dry the structure — not just the surface — typically over 3 to 5 days of monitored drying.

Skipping this step is how a $2,000 cleanup becomes a $10,000 mold remediation six months later.

Prices shown are examples only. For an accurate quote, call (858) 400-3506 — free specialist consultation.

What NOT to do

  • Don't use your household vacuum on standing water — it's an electrocution risk and will destroy the vacuum.
  • Don't run the HVAC if water reached ducts or registers; you'll distribute moisture (and later, spores) through the whole house.
  • Don't seal up wet rooms. Closed doors and no airflow create a perfect incubator.
  • Don't throw away damaged items until your adjuster has seen them or you've photographed everything thoroughly.

The bottom line

The first 24 hours decide whether a water event stays a cleanup or becomes a reconstruction. Stop the water, document relentlessly, get air moving, and have the structure professionally dried. If you're anywhere in San Diego County, we answer the phone around the clock.