Applying wallpaper directly over existing tile is a popular DIY solution for updating bathrooms, kitchens, and laundry rooms without the demolition dust and disposal fees. While the concept is straightforward, success depends on meticulous surface preparation, the right adhesive, and selecting a wallpaper type engineered for non-porous surfaces.
Assessing Your Tile Condition
Before purchasing materials, inspect the tile and grout thoroughly. The surface must be clean, dry, rigid, and completely free of any grease, soap residue, or wax. If the tile is glossy, such as glazed ceramic or porcelain, the smooth surface offers very little grip for the adhesive, increasing the risk of peeling. In these cases, you must create a mechanical bond by lightly sanding the surface or using a specialized primer to rough up the glaze.
Critical Surface Preparation Steps
Proper preparation is the most significant factor in ensuring the wallpaper adheres for the long term. You must fill any cracks or chips in the grout with a color-matched epoxy filler and allow it to cure. Once the filler is dry, clean the entire surface with a degreaser or a mixture of water and trisodium phosphate (TSP) to eliminate any lingering contaminants. After rinsing, you should perform a adhesion test by taping a small section of wallpaper to the tile and waiting 24 hours; if it pulls off easily, the surface requires more aggressive preparation.

Priming the Tile
Using the correct primer is essential when learning how to cover tile with wallpaper. A bonding primer specifically designed for non-porous surfaces will slightly etch the tile chemically or mechanically, creating a grippy substrate. Roll or brush the primer evenly across the entire area, ensuring full coverage of the grout lines, and let it dry to a tacky state before beginning the installation. This layer acts as a bridge between the adhesive and the slick tile.
Selecting the Right Wallpaper
Not all wallpaper is created equal, and choosing the wrong type will lead to frustration and failure. For tile substrates, you should opt for non-woven or pre-pasted wallpaper because these materials are more dimensionally stable and resistant to shrinking. Avoid heavy grasscloth or natural fiber wallpapers, as they are more likely to contract and detach from the rigid tile surface. If the tile has significant texture or is uneven, a thinner paper or vinyl will conform better than a thick embossed option.
The Adhesive Application Method
The installation method varies depending on the wallpaper type. If using pre-pasted paper, you must apply the paste to the wall, not the paper, to prevent over-saturation of the adhesive which can cause slippery conditions. Roll the paste on the tile surface using a small roller, focusing on the grout lines to ensure the adhesive reaches the rigid substrate. Book the paste—fold the paper paste-side in paste-side out—for the manufacturer’s recommended time to allow the adhesive to activate before positioning it on the tile.

Managing Grout Lines and Pattern Matching
One of the unique challenges of covering tile is the grout grid. You have two primary strategies: you can align the wallpaper pattern over the grout lines, which offers a stable seam over the colored mortar, or you can position the seam directly over a tile. Aligning over grout hides minor tile imperfections but requires precise cutting to avoid creating a weak seam directly over the hollow space of the grout. Seam sealing tape is highly recommended to prevent moisture from seeping behind the paper at these joints.
Ongoing Maintenance and Longevity
Even with a perfect installation, covering tile requires different maintenance than covering drywall. You should avoid steam cleaning or aggressively scrubbing the seams, as excessive water can eventually loosen the adhesive through the grout. For high-humidity areas like showers, ensure the bathroom has adequate ventilation to prevent the wallpaper adhesive from breaking down prematurely. With proper care, a well-executed wallpaper over tile project can refresh the space for many years without the issues associated with moisture trapped behind tile grout.