# The first hour after water, fire, sewage or smoke damage What to do in the first hour after a burst pipe, house fire, sewage backup or smoke damage: make it safe, stop the source, document everything > Source: https://servpronorhfremont.com/emergency/first-hour/ > Last reviewed: 2026-08-21 --- Read this before anything else ## Water and electricity If there is standing water in a room with outlets, appliances, or an electrical panel, do not enter. Shut off power at the panel only if the panel is dry and you can reach it without stepping in water. Otherwise, call your utility or 911 from outside. ## Ceilings, floors and fire-weakened structure A bulging or sagging ceiling is holding weight and can come down. Stay out from under it. After a fire, do not go in until the fire department has released the structure — fire weakens framing, and hot spots reignite. ## Carbon monoxide and smoke inhalation Carbon monoxide is an odorless, colorless gas. CDC lists the most common symptoms of poisoning as headache, dizziness, weakness, upset stomach, vomiting, chest pain and confusion, and describes them as flu-like. If a CO alarm is sounding, or anyone has these symptoms, get everyone and every pet outside first, then call 911 from outside. Do not go back in. ## Biohazard exposure Sewage, blood, or other potentially infectious material should not be cleaned without training and protective equipment. Exposure to bloodborne pathogens is an occupational hazard governed by a federal standard for a reason. - Home - Emergency - The first hour # The first hour - Fire & smoke - Water - Biohazard - Mold Caution — limited conditions Only under the specific conditions stated. If any of them do not hold, stop. Make the area safe before anything else, then stop the source of water or smoke if you can reach the shutoff safely. Photograph and film everything before you move a single item. Open your insurance claim yourself. Secure the property against further damage. Do not sign any contract yet. ## The first hour - Make it safe. Water and electricity, a sagging ceiling, a CO alarm, or sewage all mean stop and get out. The four warnings at the top of this page are the whole of it. If any of them apply, nothing below matters until they are handled. - Stop the source — but only if the shutoff is dry and reachable. Water main for a pipe, gas for a suspected leak, breaker only if the panel is dry. If you cannot reach it without stepping in water, call the utility instead. - Photograph and film before you move anything. Wide shots of each room, then close-ups. Capture the source, the water or smoke line on the wall, and every affected item with its model and serial number. This is the single highest-value thing you will do today, and it costs nothing. - Open the claim yourself. Call the number on your policy, not a number a contractor gives you. Write down the claim number, the adjuster's name and the time. - Secure the property against further damage — cover an opening, move undamaged contents to a dry room. Your policy requires you to prevent further loss, and keeping receipts is part of it. - Do not sign anything yet. Not an assignment of benefits, not a work authorization, not a “we'll bill your insurance directly” form. Nobody else will tell you this in the first hour, which is exactly why it is on the list. Mold usually follows 24–48 h Water categories 1, 2, 3 Photograph before moving anything Sign in the first hour nothing ## The short version - Safety first, and safety means the four warnings above — not a general feeling of caution. - Stop the source only if the shutoff is dry and reachable without stepping in water. - Document before you move anything. Photographs taken later cannot prove what was there before. - Open the claim yourself so the claim number is yours, not a contractor's. - Nothing needs your signature in the first hour. Nothing. ## Why the first hour matters more than the rest of the day # Link to this section The decisions that cost the most money are made in the first hour, by someone who has never made them before, usually while being advised by the only person in the room who gets paid based on the answer. None of what follows requires equipment, expertise, or money. It requires you to do things in an order that is not the order your instincts will suggest. Your instinct is to start moving things out of the water. The order below puts documentation before that, because a photograph you did not take is the one piece of evidence you cannot recreate later. ## What counts as “making it safe” # Link to this section Safety here is specific, not general. The four warnings at the top of this page are the entire list, and each one has a clear test: - Standing water and electricity. Is there water in a room that also has outlets, appliances, or a panel? Then the room is not safe to enter, regardless of how shallow the water looks. - A ceiling holding water, or a fire-weakened structure. A bulging ceiling is holding weight. After a fire, the framing has been heated and the fire department has to release the structure before anyone goes in. - Carbon monoxide or smoke inhalation. A sounding CO alarm, or symptoms that improve when someone leaves the building. - Sewage, blood, or other potentially infectious material . This is not a mopping job, and it is not a question of how strong your stomach is. If none of those apply, you can move on. If any of them do, the rest of this page waits. ## Stopping the source, without making it worse # Link to this section Stopping the water is usually the most useful physical thing you can do, and it is often simpler than people expect — most homes have a main shutoff where the supply enters, and most fixtures have their own stop valve. The condition is access. If reaching the shutoff means walking through standing water in a room with outlets or a panel, it is not worth it, and the utility can shut the supply from outside. The same applies to the breaker panel: shut off power there only if the panel is dry and you can reach it without stepping in water. After a fire there is usually no source left to stop, because the fire department has already done it. What remains is that the building is full of suppression water, and that water is now the active problem. ## Documenting: what to capture, in what order # Link to this section Work from wide to close, and finish before you move anything. - A wide shot of each affected room from the doorway, so the extent is obvious. - The source — the failed pipe, the appliance, the ceiling opening, the fixture. - The water line or smoke line on the wall, which shows how high it got. - Close-ups of damaged contents, with model and serial numbers where they exist. - A short walkthrough video with the date audible, narrating what you are seeing. Then keep every receipt, and keep the daily monitoring logs if equipment gets installed. If a contractor puts fans and dehumidifiers in your house, those logs are how anyone later establishes that the equipment was doing something. Do not throw anything away until the adjuster has authorized it, even things that are obviously ruined. The ruined item is the evidence. ## Naming what you have # Link to this section Guidance that does not name these is not specific enough to act on, which is why every page here does. - Water is graded by category. Category 1 is clean supply water. Category 2 is significantly contaminated. Category 3 is grossly contaminated — sewage, rising external water. The category decides what gets dried and what gets removed, and it degrades with time. - Smoke is graded by residue type. Dry smoke, wet smoke, protein residue and fuel-oil soot behave differently and depend on what burned, not on how big the fire was. - Coverage turns on the peril , and for water, on whether it came from inside the building or outside it. ## The one instruction nobody else gives you # Link to this section You will very likely be handed a document in the first few hours. It may be called a work authorization, a direction to pay, or an assignment of benefits . It will be presented as a formality that lets the work start. An assignment of benefits transfers your rights under the insurance claim to the contractor. After signing, the contractor — not you — deals with the insurer, bills the insurer, and in many states can pursue the insurer directly. The rules around them vary substantially by state, and several states have changed them in recent years. This page does not tell you whether to sign one. It tells you that it is a decision with consequences, that nothing about the first hour requires you to make it, and that anyone insisting otherwise is telling you something about themselves. ## What this means for your claim Two things you do in the first hour affect the claim more than anything a contractor does later. The first is documentation. Your insurer decides what to pay for based on evidence that the damage existed and was caused by a covered event. Photographs taken after a room has been cleared prove far less than photographs taken before it was touched. This is free, and it is the part most people skip because it feels less urgent than moving things out of the water. The second is what you sign. An assignment of benefits transfers your rights under the claim to the contractor. It is routinely presented before anyone has discussed what the work will actually be. You do not have to decide in the first hour, and there is no version of this where signing faster helps you. ## What comes next Whatever brought you here, your loss is probably not one thing. That is not a scare tactic — it is how these events work, and it is the reason this site covers four perils instead of one. - A fire also produced smoke damage everywhere the smoke traveled, and water damage from suppression. If that water sits, mold follows. - A burst pipe becomes a mold problem if the drying is delayed or incomplete. - A sewage backup is water damage that is also a biohazard, and the porous materials it touched are generally removed rather than dried. - A storm with a power outage means no drying, which is why storm losses so often become mold losses. ## Common follow-up questions ### Should I start cleaning up right away? Not before you have documented the scene. Photograph and film everything first. After that, whether you can clean anything yourself depends entirely on what the water is — clean supply water is a different situation from sewage. ### Do I have to use the restoration company my insurer suggests? You generally choose your own contractor, though your policy may set conditions and your insurer may have a preferred network. What matters more in the first hour is that you are not signing anything yet. ## Related questions - What happens after a house fire, hour by hour - Why flood is excluded from your homeowners policy - What an assignment of benefits actually does - Additional living expense: the coverage people forget to claim - What to photograph, and in what order - Water categories 1, 2 and 3, and why the number decides the cost ## Sources Every source cited on this page - T1 Carbon Monoxide Poisoning — CDC (accessed 2026-08-21) - T1 Mold, Moisture and Your Home — US EPA (accessed 2026-08-21) - T1 Bloodborne Pathogens, 29 CFR 1910.1030 — OSHA (accessed 2026-08-21) - T2 ANSI/IICRC S500 Standard for Professional Water Damage Restoration — IICRC (accessed 2026-08-21) Written by: PLACEHOLDER — Restoration Reviewer Reviewed by: PLACEHOLDER — Claims Reviewer Safety reviewed by: PLACEHOLDER — Restoration Reviewer Last reviewed: 2026-08-21