How to Install Backsplash


Installing a backsplash in your kitchen can completely transform the look and feel of the space. Not only does a backsplash provide an extra layer of protection for your walls from moisture and stains, it allows you to add visual interest and personality through the tile design, materials, and colors you choose.

While tiling a backsplash may seem intimidating, it’s actually a very doable DIY project for most homeowners. With some planning, the right materials, and proper technique, you can achieve a high-quality backsplash installation that will last for years to come. This comprehensive guide will walk you through the entire process from start to finish.

Materials and Tools Needed

Before starting any tiling project, it’s important to ensure you have all the necessary materials and tools on hand. Here’s what you’ll need for a basic kitchen backsplash installation:


  • Ceramic, porcelain, glass, or stone tiles in your choice of colors, shapes, and sizes
  • Enough tiles to cover the backsplash area, plus 10% extra to account for cuts, mistakes, etc.
  • Tile spacers for consistent grout lines

Adhesives and Grout

  • Thinset mortar adhesive to adhere tiles to the wall
  • Grout for filling in seams once tiles are set
  • Grout sealer to protect grout and prevent staining


  • Tape measure
  • Level
  • Tile cutter for cutting tiles
  • Tile spacers
  • Notched trowel for spreading mortar
  • Grout float for applying grout
  • Grout sponge
  • Buckets for mixing mortar and grout
  • Caulk and sealant

Other Supplies

  • Drop cloths for protecting surfaces
  • Rags, sponges, and buckets for cleaning
  • Gloves and eye protection for safety

Preparing the Surface

Proper surface preparation is crucial for a long-lasting backsplash installation. The tiles need a completely clean and sturdy surface to adhere to.


Thoroughly clean the entire backsplash area with a degreasing cleaner or dish soap and water to remove any dirt, grime, or oils. Rinse well and allow to fully dry.

Remove Appliances

Detach any existing backsplash tile by prying it off with a putty knife or chisel. Remove any appliances, fixtures, or hardware that are in the way of the backsplash area.

Repair Wall Imperfections

Inspect the wall for any holes, cracks, uneven surfaces or imperfections, and repair them with spackle or drywall joint compound. Allow repairs to dry completely.

Prime Painted Surfaces

If the backsplash area has been previously painted, it’s important to prime the surface first with a bonding primer or sealer. This helps the thinset mortar adhere properly. Allow primer to dry fully before tiling.

Once the surface is cleaned, repaired, and primed, you’re ready to start laying the tile!

How to Cut Tile

Before installing any full tiles, it’s necessary to cut them to fit around outlets, corners, and edges. Here’s how to cut tile for your backsplash:

Measure First

Always measure and mark your tile cuts carefully before cutting the actual tile. Hold the tile up to the area and use a pencil to mark the cut line.

Score and Snap with Tile Cutter

For straight cuts, use a manual tile cutter. Position the tile in the cutter, aligning the cut mark with the cutting wheel. Apply firm, even pressure as you run the cutting wheel across to score the glaze.

After scoring, place the tile over a solid edge and snap the tile downward to make a clean break along the scored line.

Curves and Holes with Tile Nippers

For rounded cuts or notches, such as fitting tile around an outlet, use tile nippers. Nippers will chip away small fragments of the tile until the desired shape is achieved. Go slowly and check often for accuracy.

Wet Saw for Precise Cuts

For intricate cuts, holes, or large tiles, a wet saw is the best option. The water prevents overheating and cools the blade. Simply line up the cut and advance the tile slowly through the blade to make smooth, precise cuts.

How to Apply Thinset Mortar

Thinset mortar adhesive is used to attach the tile directly to the surface. Latex-modified thinset provides the strongest, most water-resistant bond. Here’s how to apply it:

Mix Thinset

Combine thinset powder with water in a bucket per manufacturer instructions, and mix to a smooth, spreadable consistency. Let it slake (sit) 5-10 minutes.

Load Notched Trowel

Load the notched trowel with a generous amount of thinset, pressing it firmly onto the surface to imprint the adhesive pattern.

Apply Thinset to Wall

With the flat side of the trowel, spread a thin, even layer of thinset over a section of the backsplash area slightly wider and higher than the first tile.

Back-Butter Tiles

Apply additional thinset to the back of each tile with the trowel before placing them on the wall. Back-buttering provides maximum adhesion.

Embed Tiles

Press tiles firmly into the thinset with a slight twisting motion. Use spacers between tiles for consistent grout line spacing.

Check Level and Alignment

As you place tiles, use a level and measuring tape to verify they are plumb and aligned. Adjust as needed while the thinset is still pliable.

Grouting Tiles

Once the thinset has cured fully per manufacturer instructions (usually 24-48 hours), it’s time to grout the tiles. Follow these steps for grouting:

Mix Grout

Prepare grout by mixing grout powder with water or a latex grout additive in a bucket per package directions. Let the grout slake for 10 minutes before using.

Apply Grout

Using a grout float or squeegee, spread grout over the tiles, pushing it down into the joints with firm pressure. Drag the float diagonally across the joints to fill completely.

Clean Excess Grout

After 10-15 minutes, use a damp grout sponge to clean excess grout off the tile surface, rinsing the sponge frequently. Work in circular motions.

Final Clean and Polish

Once grout has become firm (usually 30-60 minutes), do a final clean of the tiles with a soft, damp cloth or sponge. Buff dry with a microfiber cloth for a polished finish.

Cure Grout

Allow grout to cure fully per manufacturer instructions before exposing it to moisture. Usually 24-72 hours.

Grouting completes your backsplash installation! Just allow the grout to cure fully before use.

Tips for a Flawless Backsplash

Follow these pro tips and techniques for getting professional-looking results on your DIY backsplash project:

  • Plan tile layout: Dry lay tiles on the countertop first to determine optimal placement and cuts.
  • Mix thinset and grout thoroughly: Clump-free mortar and grout adhere and cure properly.
  • Clean as you go: Wipe any thinset or grout from the tile surface with a damp sponge immediately to prevent drying.
  • Leave even joint spacing: Use tile spacers for straight grout line spacing.
  • Work in small sections: Tiling/grouting in 3-4 sf sections is easier for beginners to control.
  • Seal grout: After curing, apply a penetrating sealer to protect grout from stains.
  • Caulk edges: Caulk where the backsplash meets the countertop or other surfaces for a waterproof seal.
  • Make clean precise cuts: Use the proper tile cutting tools for each situation.
  • Allow proper thinset/grout cure times: This prevents cracks, dulling of tile, and poor adhesion.

Following the techniques, tools, and materials outlined above will help you gain the knowledge and confidence to install a stunning, high-quality backsplash that will be beautiful and functional for years to come. Let your personality shine through in the tile you select for a backsplash that’s distinctly yours.

Frequently Asked Questions About Installing Backsplash

What type of tile is best for a backsplash?

The most common and suitable types of tile for backsplashes are ceramic, porcelain, natural stone, and glass. Ceramic tile is very affordable, durable, and available in endless options. Porcelain is more moisture-resistant. Natural stone like marble, travertine, or slate add elegance. Glass tile provides brilliant shine.

How do I cut holes in tile for outlets?

Use a carbide-tipped hole saw drill bit in a drill press or handheld drill to cut clean circular holes for outlets and switches in ceramic, porcelain or glass tile. Go slowly with steady pressure. For small holes, tap carefully with a hammer and screwdriver to punch through the glaze.

Should tiles overlap the countertop?

It’s recommended to have tiles sit slightly above the countertop edge. This prevents water and debris from seeping under the tile edges. Apply caulk between the top edges of the backsplash tile and the countertop for a water-tight seal.

How do I remove existing backsplash tile?

To remove old backsplash tile, first remove any trim or molding at the edges. Then begin prying off each tile by getting under the edges with a putty knife or chisel and knocking upward. The mortar behind the tile should detach easily. Scrape any remaining thinset mortar off the wall down to the bare surface.

Can I install a backsplash directly over drywall?

Tile should not be directly adhered to regular drywall, as it does not provide a sturdy enough surface. Use cement board, Hardiebacker, or another tile backing board that is designed specifically for the weight and moisture exposure of tile installations.

How long does thinset and grout need to cure before grouting/using?

Exact thinset and grout cure times depend on the product used. Generally, thinset mortar takes 24-48 hours to cure before grouting. Grout then takes another 24-72 hours to cure fully before the surface can get wet. Check manufacturer instructions.

What order do I install backsplash pieces in?

The typical order is:

  1. Dry lay tiles on countertop to determine positioning.
  2. Measure and cut any perimeter tiles needed.
  3. Apply thinset mortar adhesive to wall.
  4. Place full tiles first, then fit cut tiles around edges and openings.
  5. Allow thinset to cure.
  6. Grout tile joints.
  7. Allow grout to cure before use.

How much thinset mortar and grout do I need?

As an estimate, you will need about 1/4 of a bucket of thinset per square foot of tile, and about 1/3 of a bucket of grout per square foot. Buy a little extra to account for waste.

Can I use regular drywall compound instead of thinset?

No, do not attempt adhering tiles with regular spackling, joint compound, construction adhesive, or anything other than thinset mortar specifically designed for tiles. These other products will not properly bond and support tile long-term.

I hope this comprehensive guide gives you confidence to install a beautiful, functional backsplash tile design using proper methods and materials. Let me know if you have any other backsplash installation questions!


Installing a backsplash tile brings your kitchen design to life while also serving the practical need for a splash-resistant surface above countertops. While tiling requires attentive measuring, cutting, and grouting, don’t let the details intimidate you. With the right materials, tools, and techniques, you can absolutely achieve a professional-looking backsplash installation through DIY. Planning your design, preparing your surfaces properly, using quality thinset mortar and grout, and applying tiles carefully will result in a stunning backsplash you’ll enjoy for years. Just take it step-by-step, and don’t be afraid to call in a tile pro if you need any guidance. With some perseverance and patience, you can transform your kitchen with the backsplash tile design of your dreams.