How to Install Tile Backsplash Without Mortar

Installing a tile backsplash is a great way to add visual interest and protect your walls in a high-traffic area of your home. While tile backsplashes are commonly installed using mortar as an adhesive, it is possible to install tile without it for certain applications. Here is a step-by-step guide on how to install a tile backsplash without using mortar.

Benefits of Installing Tile Backsplash Without Mortar

Installing tile without mortar has some advantages:

  • Easier installation – Applying mortar and ensuring even coverage can be tricky for DIYers. Self-adhesive tile is much easier to install.
  • Lower cost – Mortar, grout and specialized tools can add cost. Self-adhesive tile eliminates the need for these materials.
  • Removability – Tile installed without mortar can be removed later without damaging the wall. Great for rentals or temporary installations.
  • Lightweight – Mortar adds a lot of weight, requiring a more robust mounting surface. Adhesive tiles are much lighter.

While mortarless installation has benefits, it may not be as durable or appropriate for all backsplash applications. Heavy tile, large format tile, or tile on uneven surfaces may still require mortar.

What You Need to Install Tile Backsplash Without Mortar

Here are the materials needed:

  • Self-adhesive tile – Many types are available, such as vinyl, plastic, ceramic, or thin porcelain. Check weight limits.
  • Cleaning solutions – Mild detergent and rubbing alcohol to clean the surface.
  • Spacers – Plastic spacers for even tile spacing, if not pre-installed on the tiles.
  • Grout (optional) – Grout to fill in between tiles for a finished look.
  • Caulk – To seal around edges and fixtures. Match to grout color.
  • Tile cutter – To cut tiles for corners and edges. A snap cutter is fast and easy.
  • Utility knife – For detailed cuts around fixtures or outlets.

Preparing the Surface

Proper prep is crucial for getting tiles to adhere correctly:

  • Clean thoroughly – Use a nonabrasive detergent and water to clean the wall surface. Rinse and let fully dry.
  • Degrease – Wipe the surface down with rubbing alcohol to remove any oily residues.
  • Fill any holes or uneven spots – Use spackle or drywall compound to level the surface. Let dry completely.
  • Mark outlet locations – Mark the locations of any outlets, switches or fixtures to cut around later.
  • Apply painters tape (optional) – Tape off the sides and top edge for a cleaner finished look.

Prepping properly will allow the adhesive tiles to stick as intended.

How to Install the Tile Backsplash without Mortar

Follow these steps for the installation:

Step 1: Plan Your Layout

  • Measure the space and dry lay the tiles to map out the most effective pattern.
  • Cut any perimeter tiles to fit. Mix up tile orientation for visual interest.
  • Account for spacers by making the dry layout slightly smaller than the space.

Planning prevents having to make cuts mid-installation.

Step 2: Apply the Tiles

  • Peel off adhesive backing and press tiles firmly onto the surface.
  • Use spacers between tiles for consistent spacing.
  • Work in sections, completing one area before moving to the next.
  • Roll all tiles with a rubber roller to ensure full contact adhesion.

Take care when applying tiles to avoid realigning once placed.

Step 3: Cut and Apply Perimeter Tiles

  • Measure and mark tiles to the correct length.
  • Cut tiles to fit using a snap tile cutter or utility knife.
  • Fill edge gaps with caulk for a clean finish if needed.

Cutting precision is important for perimeter tiles to fit correctly.

Step 4: Cut and Install Outlet Covers

  • Measure and mark openings for outlets, switches, pipes, etc.
  • Carefully cut openings with a utility knife. Test fit.
  • Allow tiles to overhang slightly into the openings.
  • Install outlet covers to hide cut edges.

Take your time on outlet cuts for clean openings.

Step 5: Apply Grout and Caulk (Optional)

  • Let tile adhesive cure fully per manufacturer instructions.
  • Mix grout and apply smoothly over the tile surface to fill joints.
  • Wipe away excess grout with a damp sponge. Rinse sponge frequently.
  • Once grout has dried, apply caulk along the perimeter and seams.

Grout and caulk add a polished look but are not mandatory.

And that’s it! Your mortarless tile backsplash installation is complete. Enjoy your new backsplash makeover!

FAQs About Installing Tile Backsplash Without Mortar

What kind of tile can be installed without mortar?

Lightweight tiles under 6 pounds per square foot, such as ceramic mosaic tiles, vinyl tiles, and thin porcelain tiles, can often be installed with adhesive rather than mortar. Always check manufacturer instructions.

How long does mortarless tile last?

Durability will vary by tile type and quality. Well-made acrylic, vinyl or thin porcelain tiles can last 5-10 years or more. Ceramic tile may last much longer. Proper prep and application is key for longevity.

Is mortar or adhesive tile cheaper?

Adhesive tile is generally cheaper than a mortared tile install. Thinner self-adhesive tiles cost less than traditional ceramic or porcelain tile. The mortar, additional tools and grout add cost for a mortared backsplash.

Can you put regular tile on a backsplash without mortar?

Mortar provides essential support and adhesion for heavy tile. Small mosaic sheets may adhere without it, but large format ceramic, porcelain or natural stone tiles require mortar for proper installation on a backsplash.

Is mortar necessary for kitchen backsplash?

Most kitchen backsplash installations will require mortar for proper bonding, support, and durability. The exception is using very lightweight adhesive tile made specifically for backsplashes. Mortar is required for heavy tile.


Installing a tile backsplash without mortar is an easy DIY project with the right self-adhesive tile. Be sure to thoroughly prep the surface and carefully apply the tiles. While not appropriate for every application, adhesive tile can create a beautiful, functional backsplash without the cost or mess of mortar. Follow the techniques here for a successful mortar-free tile backsplash.