How to Smooth Bathroom Walls After Removing Tile


You heave a sigh of relief as you pry the last tile off the wall because you believe that the most difficult portion of the process is now behind you. Then you look up at the wall that no longer has tiles on it, and what you see is a splotchy remnant of the mastic, divots, and fractures in the wall. This is not what you were anticipating. After removing the tile from the wall, don’t panic; even though you still have some hard work ahead of you, using a good mastic remover and some joint compound may help you smooth out the wall and make it ready for whatever finish you want.

  1. To remove the mastic off the wall, use a roller to apply the mastic remover, taking care to apply it in the thickness that is advised by the manufacturer. Before beginning construction, you should first measure the wall at its highest and longest points, then multiply those measurements to get the square footage of the area that has to be covered. Although larger containers of mastic remover span 100 square feet, it is important to verify the guidelines provided by the manufacturer before beginning the removal process to ensure that you have enough to do the task.

  2. According to the instructions provided by Parklane Driveways, after allowing the mastic remover to set for the amount of time specified by the manufacturer, scrape the wall with a putty knife or metal scraper to remove the adhesive. After you have finished cleaning the wall from top to bottom and throughout its full length, wipe it all off with a moist towel. Apply the remover once again to any mastic that may still be present, wait the length of time that is specified, and then scrape the adhesive off.

  3. Sand the walls with a sanding block to remove any remaining traces of mastic and to make the surface more uniformly smooth. After cleaning the walls, take a walk around the area to look for any cracks, holes, or uneven spots.

  4. It is recommended that you use a metal container to mix up a batch of joint compound and then use a joint knife to apply a thin layer of joint compound to each crack or hole. Inquire of the Constructor. Make use of the knife to work the compound into the recess while also sanding it down along the neighbouring wall. After allowing this to dry completely, proceed to inspect each area to make sure it is level with the rest of the wall. If it isn’t, you’ll need to apply a second coat of compound using the same technique, then wait for that one to dry too. If the cracks or holes are exceptionally deep, you will need to place drywall tape over the first layer of compound, and then apply the second coat of compound over the drywall tape. This not only helps to close up the hole, but it also reduces the quantity of compound that has to be used in order to produce a flush finish.

  5. In the event that it is required, refloat the drywall. There are certain instances in which the wall can be so damaged that it would be pointless to try to fix each individual location. If this is the case, apply one to three coats of compound to the entire wall. Use the joint knife to apply a thin, even layer, holding it at a 45-degree angle while you work, and wiping the knife clean of any excess compound as you feather it out. If this is the case, apply one to three coats of compound to the entire wall. Work on the wall in tiny sections, beginning at the wall’s centre at the top and moving downward and outward until the whole wall has been covered. Maintain a thin covering; if you apply the compound in too thick of a layer, there is a chance that it may never truly set, leaving the wall uneven. Wait until each coat is dry before applying the next one, and gently sand each coat before applying the next one, carefully cleaning away the dust with a moist cloth in between coat applications. After applying the final layer, you should sand it down one more time.

  6. Sandpaper should be used on each patch, and then the area should be wiped off with a clean towel. Priming the whole wall is the first step in completing it according to your intentions; after that, continue on to the next step.

    Things You Will Need

    • Mastic remover

    • Paint roller

    • Measuring tape

    • Putty knife

    • Cloth

    • Sanding block

    • Joint compound

    • Joint knife

    • Drywall tape (optional)

    • Primer

    • Painting supplies

    • Drop cloth

    • Painter’s tape


    Because the mastic remover, compound, and primer might leak and cause damage to your flooring, vanity, and toilet, you will want to cover them before smoothing out the wall. This is especially important if you did not protect them when you were first removing the tile from the wall. A drop cloth should be used to cover the flooring, painter’s tape should be used to seal any edges, and work should be done in an area with enough ventilation.