How To Replace A Water Damaged Bathroom Floor: 3 Easy Steps

One might wonder, “how to replace a water damaged bathroom floor”. While water damage may appear to be a minor inconvenience, it can lead to some severe problems if not handled appropriately.


how to replace a water damaged bathroom floor

Pre-Procedure: Tips For Cleaning Up Water Damage


1. Remove all sources of water moisture present in the problem area

In the case of a dripping pipe, this means shutting off the water supply while for a wet carpet, dry out the area, as moisture can cause more damage the longer it remains in place.


2. Examine the area for any signs of mold or mildew

If left untreated, mold can wreak havoc on your home’s air quality and the structural integrity of your floors. To guide you, check out these easy-to-follow guidelines on how to remove mold from water damage.


3. The area should be dehumidified

Suppose you have access to a dehumidifier or perhaps a large fan. In that case, you can aid by removing any excess moisture from the area. Drying out is essential before you begin any work.  


4. First things first: Make sure your workspace is clutter-free

If you plan to hire a professional or do the repairs yourself, you must first clear the area and remove any obstacles in your way. If you can, consider temporarily relocating your bathroom’s bathtub and toilet. 

There must be no obstructions in the work area before starting.


Repairing And Replacing A Water-Damaged Bathroom Floor


1. Get rid of any deteriorated porous material

Before continuing, inspect your work area for any porous material that may have been damaged and remove it altogether. Remove any damaged materials that remain and disinfect the area by sweeping it thoroughly with bleach or a cleaner solution before moving on with the entire repair course.


2. Replace damaged materials with new ones

Before installing your new material, thoroughly inspect the area for any trapped moisture pockets. After your material has been installed, check your flooring for trapped pockets.

Suppose you find that your flooring needs to be replaced. It is preferable to strip it and replace it along its entire length because even a tiny pocket of damage can lead to more significant problems in the future. 

To complete the work, you will replace your drywall, which cannot be repaired in small patches because the entire sheet must be replaced.


3. It’s time to seal it up!

Before caulking your floors, ensure that all your new materials are secure and slotted in place. Epoxy grout of the highest quality should always be used, especially in areas prone to high moisture levels.

Caulking will help to prevent water damage in the future by filling in any holes in your foundation. It also indicates avoiding acidic cleaners.

Drying the bathroom can extend the life of your grout. Wiping down the walls after a shower and keeping the room well ventilated can help extend the life of your grout and prevent water from seeping behind your tiles.

After that, paint the entire area to blend in with the rest of your home.


A Look At The Causes Of Damage To The Bathroom Floors

Floor water damage is frequently caused by a leaking pipe or, more commonly, by a faulty water heater, among other sources of water damage in the bathroom. It can be easily identified by the presence of visible physical signs that vary depending on the flooring material as follows: 



Moisture can seep behind tiles and cause numerous problems. It can destroy the drywall backing, cause rot, and even cause the tiles to begin to fall off when left unfixed for a long duration.

Water damage behind your tiles, in the worst-case scenario, can result in mold growth behind your tiles. It can be a severe health risk for those exposed to molds. 


Laminate floor

If the laminate flooring is exposed to moisture for longer, it will also swell and bulge. The planks will no longer be flat, making the surface unstable and dangerous to walk on, as they can flare up at the slightest hint of pressure. 

As an outcome, you will notice dark spots, which indicate the presence of mold and mildew.



Carpets are twice as likely to mold as other types of flooring if spills or moisture isn’t cleaned up right away. The carpet will accumulate intense odors and discoloration if the liquid is not dried.

Due to its toxicity, mold can be harmful if inhaled or exposed for a long duration.



As a result of exposure to water over an extended period, hardwood flooring planks buckle and bulge. It indicates that they are slowly separating from the subfloor and becoming unstable, making it more dangerous to walk across them over time. 

Aside from heavy discoloration, the water will also cause mold to grow in the wood, eventually leading to rot. You will not allow this mold growth to continue; instead, follow these helpful steps on how to stop mildew on water-damaged wood.



As you’ve learned how to replace a water-damaged bathroom floor, the best course of action is to prevent future water damage. It would be best to have the damaged areas replaced or repaired and properly sealed to avoid further water damage.

If water has already damaged your grout, you’ll likely need to call in the experts to fix the problem. It’s also critical to monitor water damage to your flooring and take action as soon as possible. 

Lastly, making sure the absence of mold damage is an integral part of this process.

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