My floor got wet. Can it be saved?
It depends on the material and on how long it stayed wet. Solid hardwood and tile often come back. Laminate almost never does. What decides the job either way is the subfloor underneath, because a floor laid back over a subfloor that stayed wet will fail again whatever it is made of.
Material by material
Solid hardwood can often be dried and refinished if it is caught early. It will cup while it is wet, and the mistake is sanding it flat before it has fully dried, because it flattens again on its own as the moisture leaves. Sand a cupped floor too early and you get a crowned floor later.
Engineered wood is more marginal. The wear layer is thin and the plies come apart if water reaches the core.
Laminate is a fibreboard core with a photographic layer on top. Once water gets into the core it swells irreversibly, and the edges stay blown even after it dries.
Luxury vinyl plank is waterproof in itself, but water gets under it through the seams and sits on the subfloor, so the plank survives and the thing it is sitting on may not.
Tile usually survives. What fails is the substrate and the grout, and loose or hollow sounding tile after a flood usually means the mortar bed has let go.
Carpet padding is not salvageable after anything but a small clean water spill, and carpet itself depends on the water category. Anything from a sewer backup goes.
The subfloor is the real decision
Plywood tolerates a soaking better than particle board or OSB. Particle board swells and turns to porridge and is not coming back.
A concrete slab does not rot, but it holds moisture for a long time and will fail a moisture test weeks after the surface looks dry. Laying a new floor over a slab that is still releasing moisture is one of the most common ways a second floor fails.
This is why we meter the subfloor rather than working from how it looks. The reading decides whether new material can go down or whether the drying continues.
Time matters more than volume
A small amount of water sitting for three days does more damage than a larger amount extracted in three hours. Mould gets going in the day range, not the week range, under the right conditions.
So the answer to whether a floor can be saved is partly decided by what happened in the first day, before anyone was called.
How we approach a wet floor
We extract, dry and meter the subfloor, then tell you honestly which parts of the floor are worth saving. Where a repair is possible we match into the existing floor. Where it is not, we replace to a natural break rather than leaving a visible patch in the middle of a room.
On an insurance claim the readings and the photographs are what supports replacing a floor rather than drying it, so they get taken as we go.
The Work Behind This Answer
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