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Water Damage

Water and Sewer Damage: What to Do in the First 24 Hours

Updated November 7, 2026 · 2 min read

Water damage gets worse by the hour. Here's what causes it, what you can safely do right away, and when to call a restoration crew.

From a leaking roof to a burst pipe or a backed-up sewer line, water damage is one of the most common — and most expensive — problems a property owner can face. Left alone, it leads to electrical hazards, mold growth, structural damage, and ruined furnishings. The good news: acting quickly makes a big difference.

What is water mitigation?

Water mitigation is the work of stopping water damage from spreading after a flood, leak, or backup. It means removing standing water, drying the structure, and protecting what can be saved, so the repair job that follows is smaller and less costly.

Common causes of water damage

  • Roof leaks and storm damage
  • Burst, frozen, or broken pipes
  • Plumbing and appliance leaks
  • Overflowing or backed-up toilets and sewer lines
  • Poor yard drainage and foundation cracks
  • Hidden moisture behind walls

What to do right away

Safety first: if water is near outlets, cords, or the electrical panel, stay out of the area and shut off power at the breaker only if you can do so safely. Treat any sewage backup as contaminated — avoid contact and keep children and pets away.

  1. Stop the source if you can — shut off the main water valve or the fixture's supply line.
  2. Call for professional help. Bacteria and mold can start growing within 24 to 48 hours.
  3. For clean water only, remove what you can by mopping and blotting with towels or a wet/dry vacuum.
  4. Take up wet area rugs and loose floor coverings. Leave wall-to-wall carpet for the professionals.
  5. Wipe down furniture, prop up wet cushions, and put foil or wood blocks under furniture legs.
  6. Move photos, artwork, documents, and electronics to a dry room.
  7. Open drawers, closets, and cabinet doors to help air circulate.
  8. Take photos of the damage for your insurance claim before anything is thrown away.

When to call a professional

Call a restoration crew for any sewage backup, any water that has soaked into walls, ceilings, or carpet, or any leak you can't dry out within a day. Professional crews use extraction equipment, air movers, dehumidifiers, and moisture meters to find water you can't see and dry the structure completely — the key to preventing mold later.

SL Restoration responds to water and sewer damage for homes, businesses, and government facilities. One call gets you expert guidance on what to do next and a crew to fix the problem fast.

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