Water on a floor is one of the most common reasons anyone calls about flooring, and it never arrives at a convenient time. A supply line lets go under the kitchen sink while everyone is at work. A water heater fails in a closet. A heavy storm pushes water in under the back door. Or a slow leak at a toilet turns out to have been going for a year.
What can be kept and what has to come out depends on three things: what kind of water it was, how long it sat, and what the floor and the subfloor are made of. This is how to think through all three, and the order things need to happen in.
The first day: drying comes before flooring
The order matters, and flooring is not first.
1. Stop the water and make the room safe. Shut off the supply, and keep away from wet areas near outlets or cords until the power to them is off.
2. Photograph everything before anything is moved or pulled up. If you are going to make an insurance claim, pictures of the floor as it was are hard to recreate later. Call your insurer early and ask what they need.
3. Get the house dried out. Drying a floor properly takes commercial dehumidifiers, air movers and moisture meters, and it is a job for a water restoration company rather than a flooring installer. The EPA's guidance is to dry wet materials within 24 to 48 hours to prevent mold growth, so this is the step not to wait on.
4. Keep a piece of the old floor. A cut section of the carpet or a spare plank makes matching, or showing what was there, much easier later.
The new floor goes down after the house is dry, and not before. That is the single most important point on this page.
What kind of water it was
The restoration trade sorts water damage into three rough categories, and the category decides more than anything else.
Clean water comes from a supply line, a water heater or rain through a window. Caught quickly, it gives you the best chance of saving things.
Gray water carries some contamination: a washing machine or dishwasher drain, or a toilet overflow with no waste in it.
Contaminated water is floodwater that has come in from outside, sewage, or clean water that has sat long enough to go bad. Anything porous it has soaked comes out. There is no drying it and keeping it.
Floor by floor
Carpet and pad. Pad soaks up water like a sponge and holds it against the subfloor, and it is almost always replaced. After a clean-water leak caught quickly, a restoration company can sometimes dry the carpet itself in place. After gray water that sat, or any contaminated water, carpet and pad both go. A carpet that was soaked and dried can also lose the bond between its layers and start to ripple later, so keep an eye on a saved carpet for the first few months. The carpet page covers what goes into a replacement.
Laminate. The core is wood fiber, and once water has reached the seams it swells and does not come back down. Laminate that has lifted at the plank edges gets replaced. LVP or laminate in a Bootheel home covers why.
Luxury vinyl plank. The plank survives water. The problem is what is under it. A floating plank floor sits over the subfloor like a lid, and water trapped underneath dries very slowly, if at all. So the plank in the wet area often has to come up to let the subfloor dry. Click planks can sometimes be relaid if they come apart cleanly, but the joints are easy to damage in removal, and an attached foam backing can hold water as well. Whether relaying is worth it is a judgment made once the floor is open.
Tile. The tile itself is not harmed. Water can still get through cracked grout into a wood subfloor below, so the checks are for tiles that sound hollow when tapped, tiles that have come loose, and grout that has cracked or washed out.
Glued-down sheet vinyl. It traps moisture under it and usually needs to come up. In older houses, old sheet flooring and its adhesive can contain materials that need testing before anyone disturbs them, so settle that before any scraping starts.
The subfloor decides what the repair is
Once the floor is up, the subfloor tells you how big the job is.
Plywood can often be dried and kept, as long as its layers have not started to separate and it is still firm underfoot.
OSB swells at the edges when it gets wet and does not shrink back, which leaves ridges along the panel seams. Swollen edges have to be flattened, or the panel replaced.
Particleboard, which is common in manufactured homes, loses its strength once saturated and has to be replaced. Flooring for a mobile or manufactured home covers that in detail.
A concrete slab is not damaged by water, but it holds it, and it can take a long time to dry. It needs a moisture test before anything goes back over it.
In every case, the new floor waits until the subfloor tests dry. Flooring manufacturers set moisture limits in their installation instructions, and a floor laid over a wet subfloor can fail and void its warranty. It is the same principle as the subfloor decides the job, with less room for error.
Houses with a crawl space
When water goes through a floor into a crawl space, the room above can feel dry while the space underneath stays damp for weeks, and that moisture keeps working up into the subfloor. It is worth having the crawl space looked at and dried as part of the same recovery, before new flooring goes down over it. The best flooring for a house with a crawl space covers what to look for.
Replacing part of a floor
A leak rarely damages the whole house, but floors rarely stop neatly at the edge of the damage. If the damaged floor runs continuously into the hallway and the next room, a patch in the middle can be hard to match, particularly if the product has been discontinued or the old floor has faded.
The usual answer is to break the floor at a doorway, where a change looks deliberate, and replace everything on one side of it. Sometimes the better-looking answer is to replace the whole continuous run. We will tell you which one your house is at the estimate.
It is also a good moment to ask whether the same floor belongs back in that room. If the leak came from a kitchen sink, a laundry room or a water heater closet, a waterproof floor there is worth considering. Tile or vinyl plank for a bathroom or laundry room goes through the options.
What we do once the house is dry
We come out, look at what is left, and walk the floor for soft spots. We take up the damaged flooring and haul it away, cut out and replace any subfloor that is not sound, and check the rest before anything new goes down. That work is the floor removal and demo side of the job, and it goes on the written estimate as its own lines, so you can see exactly what it is and hand it to your insurer if you have a claim.
The estimate is free across Sikeston, Portageville, Dexter and the rest of the towns we cover. Book one here or call 573-471-8700.
