A supply line lets go overnight, a monsoon cell pushes rain under the tile, or a slab leak soaks the flooring for a week before anyone notices. Whatever the source, the first 24 hours decide how much of the house you keep. Here is that first day in order: what to do, who to call, and what to leave alone.
Start with safety
Think about electricity first. If water has reached outlets, cords, or appliances, do not wade in. Cut power to the affected rooms at the breaker only if you can reach the panel without standing in water; if you cannot, keep everyone out and call an electrician or your utility.
Next, consider what kind of water it is. Restoration professionals sort it into three categories:
- Clean water (Category 1) comes from a supply line, water heater, or ice maker. It is not hazardous when fresh.
- Gray water (Category 2) carries some contamination: dishwasher or washing machine discharge, an air conditioner condensate overflow, or clean water that has been sitting.
- Black water (Category 3) is grossly contaminated: sewage backups, toilet overflows with waste, or floodwater from outside that picked up whatever was in the yard and street.
Keep children and pets away from anything gray or black, and do not clean up Category 3 water yourself. Clean water also degrades toward the dirtier categories as it sits, especially in a warm house.
Stop the source
If the water is coming from inside the house, shut it off. Most fixtures have a local valve underneath or behind them; if that fails or you cannot find the source, close the main, which in many Tucson homes is near the hose bib where the line enters the house or at the meter box by the street. A slab leak is a special case: you may never see running water, just a warm spot on the floor, a meter that spins with every fixture off, or a bill that jumped.
If it is coming through the roof during a monsoon storm, you cannot stop the rain and should not get on a wet roof. Move furniture and electronics out from under the drip, set out containers, and if a ceiling is bulging, a small puncture at the low point into a bucket can relieve it before the panel comes down. A tarp goes on after the storm passes, not during it.
Document before you clean
Photograph and video everything before you move a single item: standing water, the waterline on walls and cabinets, the source if visible, and every piece of damaged furniture, flooring, and belongings. Note when you found it and when you stopped the source. Do not throw anything away yet, even ruined carpet or a soaked mattress; move it to the garage or patio until an adjuster has seen it or cleared it in writing. Keep receipts for anything you buy in the meantime.
Call your insurer and a restoration contractor
Do both, the same day. Most policies expect you to take reasonable steps to prevent further damage, so waiting for an adjuster before anything is dried out usually works against you. Report the claim, get a claim number, and ask what the carrier needs. Then call a restoration contractor with IICRC certification, the industry credential for water damage work; a good one extracts the water, sets drying equipment, takes moisture readings, and produces the documentation your adjuster needs. Skyline does this and bills the carrier directly for covered work; you still owe your deductible and anything the policy excludes, and no contractor can promise what a policy will cover.
Why speed matters more in Tucson
Tucson is dry most of the year, but a closed-up house in June or August is warm, and wet drywall, carpet pad, and baseboards in a warm room are close to ideal conditions for mold. The widely cited guidance is that mold can begin growing within 24 to 48 hours of materials getting wet. It is not a guarantee in either direction, but it is why professional drying starts the same day rather than after the adjuster visits. Heat also drives moisture deeper: water wicks up drywall, swells cabinet boxes, and spreads under flooring across the slab, so one wet corner on Monday can be three wet rooms by Wednesday.
What not to do
- Do not run the air conditioner if a return, register, or duct has taken on water; the system will pull damp, possibly contaminated air through the house. If the system is clearly dry and unaffected, running it can help; when in doubt, leave it off and ask.
- Do not use a shop vacuum or household vacuum on Category 3 water. It aerosolizes contaminants and ruins the vacuum.
- Do not tear out drywall, flooring, or cabinets before the damage is documented. Demolition before photos leaves an adjuster nothing to evaluate.
Common Tucson sources
Monsoon roof leaks lead the summer list, usually where tile underlayment has aged out or a flat-roof scupper clogged with dust and debris. Slab leaks are common in older homes with copper supply lines run under the concrete. The rest of the year it is water heaters, washing machine hoses, dishwasher supply lines, and air conditioner condensate lines that back up in July.
Your first-day checklist
- Make sure the electricity is safe, or stay out of the room.
- Judge roughly what category of water it is.
- Stop the source at the fixture or the main.
- Photograph and video everything before moving it.
- Move belongings out of the water; keep damaged items rather than discarding them.
- Call your insurer and open a claim.
- Call a certified water damage restoration contractor and get drying started.
- Keep a written timeline and every receipt.
With water on the floor, the short version is: stay safe, stop it, photograph it, and get someone drying it today. Storm and insurance-damage inspections are free, and the phone is answered around the clock.
Related service: Water Damage Restoration — Call the 24/7 line and we aim to call back within 15 minutes; storm and insurance-damage inspections are free.