It can be difficult to remove water stains from hardwood floors, but necessary to preserve the wood. This is especially true if the water has been standing for a while. The task is more complex than simply cleaning your floors to remove water stains. The floor has to be refinished once the stain has. Suction up the water and dry the floor as you did before. Clean a second time with a wood floor cleaner to be sure all substances are removed from the floor. Use the scrub brush if necessary. Opting for dry or damp mopping instead of wet has yet another benefit to your floors: it will make them last longer. Wet mopping, which often leaves standing water on your floors, can stain hardwood and laminate flooring. It may even warp them over time. Standing water and continued exposure to water can permanently damage hardwood flooring, as water and wood never mix. Proper cleaning of hardwood flooring is important, too. Never use a soap and water combination, but, rather, only use approved cleaning solutions and your hardwood flooring will stay beautiful for years and years. Damage often happens near entry ways or foyers. Hardwood floors for the most part have been affected by rain water that has been lashing at the front door for an extended period of time. It is not necessarily the door, but the threshold that may have failed to keep moisture out. Rinse the mop with clean water, wring out excess, and damp mop the floor to remove the cleaner. Wipe up excess water with a clean, dry towel because standing water will damage the floor. You can also use boiling water and two teabags to clean hardwood floors. The tannic acid in tea creates a beautiful shine. Any air that has a relative humidity (RH) above zero has water vapor mixed into it. Given enough time, the MC of wood will come to an equilibrium value based on the RH of the air. If the MC is increased, the wood will swell, just as it does when liquid water is introduced. Standing water and hardwood flooring don't mix. For anyone who lives in hurricane and floodprone areas that have historic homes, this comes as no surprise. Whether its a small amount or a lot, water on hardwood floors is a bad mix. But dont worry it can be repaired. First off, its important to identify the source of the water damage and fix it completely. It would be pointless to repair the wood if you dont seal the leak or fix the pipes from where the water is coming. Most often, a warped wood floor is caused by standing water or heavy moisture below the floor, due to an unidentified leak or other hidden water source. Sometimes, even a nearby water source, like flooding underneath the house, can cause enough of a moisture imbalance to result in warping.