The short answer, and why it is not a single number
How long does water damage restoration take? The honest answer is that the first steps happen in hours, the drying takes days, and the rebuild can take longer than both together.
Restoration is really three jobs in a row. First comes stopping the water and getting it out of the house. Then comes drying, which means pulling moisture out of drywall, wood, carpet pad, cabinets and sometimes the concrete slab under your floor. Last comes repair: new drywall, paint, baseboards, flooring and cabinets where the old ones could not be saved.
Each stage depends on things you can only learn on site: how clean the water was, how many rooms got wet, what the floors and walls are made of and how long the water sat before anyone found it. That is why a careful restoration company gives you a timeline after it inspects and takes moisture readings, not over the phone.
This guide is a plan for the part you control: the first hour, the first afternoon and the first two days. Follow it in order and only do what is safe.
Safety before anything else. If you smell gas, leave the house now and, once outside, call 911 and your gas utility's emergency line (CenterPoint Energy serves much of greater Houston). Never walk into standing water near outlets, cords or appliances; switch power off at the breaker only if you can reach the panel while standing on a dry floor, otherwise call your electric utility (CenterPoint Energy in much of greater Houston) or an electrician. Stay out of sewage water. If it is safe to reach, close the main water shutoff.
An hour by hour plan for the first 48 hours
Think of this as a timeline you can follow with a phone in your hand. The first two stages belong to you. The later ones belong to the restoration company you hire, but knowing what should happen helps you tell whether the job is on track.
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The first hour: safety, then the water source
If you smell gas, leave first. Walk out, take everyone with you and call 911 and CenterPoint Energy's gas leak line (713-659-2111) from outside. Do not switch lights or appliances on or off on the way, since a spark can ignite gas.
Treat standing water near power as live. Do not step into water that touches outlets, cords, a water heater, a washer or a dryer. Switch the power off at the breaker only if you can reach the panel while standing on a dry floor. If you cannot, call CenterPoint Energy (713-207-2222 for electric service in the Houston area) or an electrician.
Close the main shutoff if you can reach it safely. The main valve is often near where the water line enters the house, or in a box near the street. Closing it stops a burst supply line from pouring more water in. A plumber fixes the pipe; the restoration company handles the wet house.
Get people and pets out of dirty water. If the water came from a sewer backup, a toilet with waste in it or floodwater from outside, keep everyone out of it.
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Hours one to four: photos, valuables and your calls
Record everything before anything moves. Walk every wet room and take wide photos, close-ups and a slow video. Show the water line on walls, the source if you can see it, and damaged furniture and belongings. Insurers rely on this.
Move what matters to a dry room. Photos, documents, electronics you can unplug safely, rugs and small furniture.
Call your insurer. The Texas Department of Insurance says policies have notice deadlines and that an insurer may deny a claim if you do not protect the property from more damage. Ask what your policy covers for this cause, whether you need approval before work starts and what records it wants.
Call a restoration company. You can call the free line at (832) 662-4107 at any hour and be transferred to an independent local restoration company. Tell it what happened, what kind of water it is and whether water is still coming in.
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Day one into day two: extraction and drying setup
This stage belongs to the restoration company. A careful crew starts by figuring out what kind of water it is. The IICRC S500 standard, which many companies follow, sorts water into Category 1 (clean, such as a broken supply line), Category 2 (gray, such as washing machine discharge) and Category 3 (grossly contaminated, such as sewage or rising floodwater). Dirtier water means more gets thrown out and the crew wears protective gear.
Next comes extraction, which means removing standing water with pumps and truck-mounted or portable vacuums. Then the crew maps the moisture. A moisture meter is a hand tool that reads how much water is in drywall, wood or concrete, and readings show how far the water wicked beyond what you can see. Wet carpet pad, swollen baseboards and soaked drywall below the water line are often removed so the wall cavity can dry.
Finally the drying equipment goes in: air movers, which blow air across wet surfaces, and dehumidifiers, which pull the moisture out of the air so it does not just settle back into the house. Ask the company to show you the first readings and to explain what it plans to remove and why.
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Days three onward: drying checks until readings are dry
Drying is not done by the calendar. A careful company comes back to take new moisture readings, moves or adjusts equipment and keeps going until materials reach a dry standard, often by comparing wet areas with the same material in a room that never got wet.
How long that takes depends on what the IICRC calls the class of water damage, which describes how much material got wet and how hard it is to dry. Class 1 is a small area with little absorbed water. Class 4 is specialty drying of dense materials such as hardwood, plaster, brick, concrete or stone, which hold water longer. Rooms left to dry with open windows alone can stay wet for a long time; mechanical drying equipment is what shortens that. Treat any timeline as an estimate until the readings say otherwise.
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After drying: repairs and the rebuild
Once the structure is dry, rebuilding starts: drywall, texture and paint, baseboards, flooring, cabinets and trim. Some restoration companies do this themselves, and some hand it to a general contractor. If the City of Houston or your suburb requires permits for the repair work, the contractor doing the rebuild should pull them. Ask before work starts who handles the rebuild and how long the company expects it to take.
Why waiting costs you. The EPA says that if wet materials are dried within 24 to 48 hours of a leak or spill, mold will not grow in most cases. That window is a guideline, not a guarantee, and Houston's warm, humid air works against it. The how fast mold grows guide explains why.
The water damage restoration timeline at a glance
Each row is a stage, who usually handles it and what decides how long it takes. No two houses follow it exactly.
| Stage | Who handles it | What decides how long it takes |
|---|---|---|
| Safety and shutoff | You, if safe; CenterPoint or an electrician for power and gas | Whether the shutoff and breaker panel can be reached safely |
| Photos and calls | You | How many rooms got wet; your insurer's instructions |
| Water removal | The restoration company | How much standing water there is and whether it is clean, gray or black water |
| Drying | The restoration company | The class of damage, the materials, airflow, humidity and moisture readings |
| Rebuild | The restoration company or a general contractor | What was removed, materials on order, permits and insurance approvals |
DIY water damage restoration: what is safe for you to do
A search for DIY water damage restoration turns up plenty of advice about renting fans and pulling up carpet. Some of it is fine for a small, clean spill caught right away. Much of it is risky in a real leak, because the water you cannot see is the problem, and because household fans can spread contamination when the water is not clean. The EPA warns against running fans before you know the water is clean.
Safe for homeowners
- Close the main water shutoff if it is safe to reach.
- Turn power off at the breaker only from a dry floor.
- Photograph and video every wet room before moving anything.
- Move valuables, papers and photos to a dry place.
- Mop or towel up a small amount of clean water you can reach without standing in it near power.
- Keep receipts for anything you buy or any place you stay.
Leave to professionals
- Anything involving sewage, a toilet with waste or floodwater from outside.
- Opening walls, pulling cabinets or lifting flooring to dry what is underneath.
- Electrical repairs, gas appliances or a water heater that sat in water.
- Deciding a wall or slab is dry without moisture readings.
- Mold cleanup beyond a small patch; Texas sets license rules for larger jobs.
If mold is already showing, read the mold remediation page before touching it. In Texas, visible mold under 25 contiguous square feet can generally be cleaned without a license, but larger jobs generally call for a licensed assessor and a separate licensed remediator.
Check the mold license first. In Texas, mold assessment and mold remediation are licensed by the Texas Department of Licensing and Regulation (TDLR). In most cases visible mold under 25 contiguous square feet can be cleaned by people without a license; larger jobs generally call for a licensed mold assessment consultant to write the remediation protocol and a separate licensed mold remediation contractor to do the work. Ask for both license numbers and look them up on the TDLR license search (opens in a new tab). The line does not check licenses for you.
What changes the timeline in a Houston home
The kind of water
A clean supply line break caught early is the fastest kind of job. Water from a washing machine or dishwasher counts as gray water, and sewage or rising floodwater counts as Category 3, which means more materials are removed and cleaned before drying even starts. The IICRC also notes that clean water can get worse with time and warmth, so a leak that sat over a long weekend may be treated as dirtier water. See the flood damage restoration page for water from outside.
Slab floors and dense materials
Many Houston-area homes sit on concrete slabs. Concrete, tile set in mortar and solid hardwood hold water longer than drywall, which is why a wall should not be closed up until moisture readings show the framing behind it is dry. A burst pipe under the slab adds a plumbing repair to the front of the job; the burst pipe page covers that.
Humidity and power
Dehumidifiers fight Gulf Coast air all summer. After big storms such as Hurricane Beryl in July 2024, when about 2.2 million CenterPoint Energy customers lost power, drying equipment cannot run until power returns, and companies are busy across the whole region.
Insurance steps
Your insurer may want an adjuster to see the damage, approve the scope or review photos before tear-out or rebuilding. That can add days. The Texas Department of Insurance advises not to make permanent repairs before the adjuster sees the damage, while still protecting the home from more harm. The homeowners insurance guide lists the questions to ask, and the cost guide explains what drives price.
What to ask the restoration company on day one
Write the answers down, or ask for them in writing. Good companies expect these questions.
- What category of water is this, and what does that mean for what gets removed?
- Where did your moisture readings show water, and can I see them?
- How will you know the walls and floors are dry, and how often will you check?
- What is your rough estimate for drying, and what could make it longer?
- Can I have a written estimate and scope of work before anything beyond emergency steps begins?
- Who handles the rebuild, and will you send photos and readings to my insurer if I ask?
Found water just now? Call the free line, describe what happened and whether water is still coming in, and you will be transferred to an independent local restoration company that inspects and gives you its own timeline and estimate.
The guide to checking a water damage company goes further: written estimates, payment red flags and what Texas says about contractors after a disaster. For the overall process, see water damage restoration and emergency water removal.
Related pages
- Water Damage Restoration in Houston
- Emergency Water Removal and Extraction
- Burst Pipe Water Damage
- How Fast Does Mold Grow After a Leak?
- Does Homeowners Insurance Cover Water Damage?
About this line: Water Damage Pro Houston is a free phone line, not a restoration company. It answers your call and connects you with an independent local water damage restoration company, which inspects, quotes and does the work, and which you pay directly. Companies may pay a referral fee. The line never charges you. Read how the line works.