Water damage guide: the first 48 hours
Stop the water, make the electricity safe, document everything, then get the water out and the building drying fast. The EPA notes that drying wet materials within 24–48 hours helps prevent mold. Carpet pad, insulation and drywall that stay wet usually need professional drying or removal. Call 833-877-1717 to request an independent water damage provider.
RepairNowUSA editorial review · Last substantively reviewed October 13, 2026 · Review standards
Hours 0–2: stop, secure and document
- Stop the source. Close the fixture valve or the main shutoff. For storm or flood water, wait until it stops rising.
- Make the electricity safe. Do not enter water touching outlets, cords or appliances. Turn off power at the panel only from a dry spot. For flooding from outside, do not re-energize anything that was underwater until an electrician checks it.
- Document before cleanup. Photograph and video every wet room, the water line on walls, the source, and damaged belongings. Note the time.
- Call your insurer. Ask what they need and whether they have restrictions on emergency services.
Know what kind of water you have
Restoration work follows the IICRC S500 standard, which sorts water by contamination:
- Category 1 (clean): a broken supply line, overflowing sink or appliance supply. Lowest risk if handled quickly.
- Category 2 (gray): dishwasher or washing machine discharge, toilet overflow with urine but no feces. Can cause illness.
- Category 3 (black): sewage, rising floodwater from outside, or water that has sat long enough to grow bacteria. Porous materials it touches are usually removed.
Clean water that sits for a day or two can degrade to a higher category, which is one more reason to act fast.
Hours 2–24: get the water out
- Extract standing water with a wet vacuum, pump or professional equipment. Mopping alone leaves water in the floor.
- Pull up wet area rugs. Wall-to-wall carpet pad soaked with clean water sometimes needs replacing even if the carpet can be saved; with gray or black water, both usually go.
- Move furniture off wet floors and put blocks under legs that must stay.
- Open cabinet doors and drawers in wet kitchens and bathrooms.
- Take baseboards off if water got behind them, so the wall can dry.
Hours 24–48: dry the structure
Visible water is the easy part. The real work is drying what you cannot see:
- Professionals use moisture meters and thermal imaging to find wet drywall, subfloor and framing.
- Air movers and dehumidifiers are placed to dry the structure, not just the surface. Drying usually takes several days.
- Wet insulation in walls and ceilings usually comes out because it holds water and dries slowly.
- A dehumidifier in a closed room works better than open windows on a humid day.
If walls or floors still read wet after 48 hours, mold risk rises. Musty odor, staining or visible growth means it is time for a mold assessment.
Keep, clean or throw out?
- Usually salvageable: solid wood furniture, metal, glass, ceramic and hard plastic, if cleaned and dried promptly.
- Sometimes salvageable: clothing and fabrics (wash promptly), upholstered furniture wet only with clean water, photographs and documents (can be frozen and dried later by specialists).
- Usually discarded: mattresses, pillows, stuffed toys, particleboard furniture and anything soaked by sewage or floodwater, plus food that water touched.
Before you throw anything out, photograph it and list it for the insurer. Some adjusters want to see damaged items.
Choosing a restoration provider
- Ask whether technicians are IICRC-certified in water damage restoration.
- Ask how they will measure moisture and document drying. Daily readings are standard.
- Ask whether they work directly with insurers, and read any authorization or direction-of-payment form before signing.
- Get pricing in writing. Pricing usually covers emergency service, equipment by the day, and removal of materials.
When you call 833-877-1717, RepairNowUSA looks for a participating independent water damage provider in your area. The provider confirms availability, pricing and scope with you.
How RepairNowUSA can help
Call 833-877-1717 and describe what is happening and the property ZIP code. RepairNowUSA looks for a participating independent provider for that kind of work in your area and connects you if one is available. The provider confirms timing, scope and price with you and does the work. Availability and response times vary and are not guaranteed.
Call 833-877-1717Common questions
How fast does mold grow after water damage?
The EPA notes that drying wet materials within 24–48 hours helps prevent mold growth. Warm, humid conditions and porous materials like drywall and carpet pad speed it up.
Can I dry water damage myself?
Small clean-water spills on hard floors usually can be. If water reached drywall, insulation, carpet pad, subfloor or a ceiling, or if it was gray or black water, professional drying with moisture measurement is safer. Hidden moisture is what leads to mold.
How long does water damage restoration take?
Drying often takes three to five days, longer for hardwood, plaster or heavily saturated areas. Rebuilding drywall, flooring and cabinets comes afterward and depends on the damage.
Does homeowners insurance cover water damage?
Sudden, accidental water damage is often covered. Flooding from outside usually needs separate flood insurance, and sewer backup usually needs an endorsement. Your policy and adjuster decide.
Can I call any time?
Yes. You can call 833-877-1717 at any time, including nights, weekends and holidays. Whether an independent provider can come out right away depends on your ZIP code, the time and provider capacity, so availability is not guaranteed.
Authoritative references
These public sources give general safety context. They do not replace an on-site evaluation, and RepairNowUSA does not perform the work.