How to Install Sink Backsplash


Installing a beautiful and functional backsplash behind your kitchen sink can protect your walls from water damage while also adding style to your space. With some planning and the right materials, installing a sink backsplash is a relatively easy DIY project for most homeowners.

In this comprehensive guide, we will walk through everything you need to know to successfully install a sink backsplash that upgrades your kitchen’s style and saves you money on repairs down the road. We will cover how to choose your sink backsplash materials, prepare your work area, measure and cut your tiles, apply adhesive and grout, and finally seal and caulk your new backsplash. With the right tools and these step-by-step instructions, you can achieve a beautiful, long-lasting sink backsplash installation.

Choose Your Sink Backsplash Materials

The first step in any backsplash project is selecting your materials. There are many options for sink backsplashes, so keep the following considerations in mind as you shop:

Tile or Backsplash Panels

The most popular choice for kitchen backsplashes is tile because it is so versatile and attractive. Ceramic, porcelain, glass, and natural stone tiles come in endless colors, sizes, shapes, textures, and patterns. Tile offers a high-end, custom look.

Backsplash panels made of waterproof materials like aluminum and stainless steel are another excellent option, especially for DIYers. Panels install quicker than tile and require less cutting and grouting.

Consider your design style, budget, and skill level when choosing between tiles vs. panels.

Glass, Stone, Metal, or Ceramic/Porcelain?

Think about the look you want and your everyday use of the space when selecting backsplash materials. Glass tiles add brilliant color and shine but may not hold up to heavy use. Elegant marble or granite bring natural style, but can stain and etch over time.

Durable ceramic and porcelain tiles resist scratches, stains, and moisture. Metals like stainless steel, copper, or aluminum provide modern appeal and easy maintenance.

Colors and Patterns

Choose sink backsplash materials that complement your cabinetry, countertops, appliances, and overall kitchen decor. Neutral colors are versatile, while bold colors and designs make a statement.

Consider a mosaic tile pattern or combining glass and stone tiles in unique shapes for artistic appeal. Or choose matching grout in a coordinating neutral.


Tiles range widely in price from $.50 per square foot for basic ceramic to $50+ per square foot for high-end stone and glass. Backsplash panels fall somewhere in the middle from $10-30 per square foot. Measure your space and create a budget before purchasing materials.

DIY vs Pro Installation

Installing backsplash tile requires some DIY skills, proper tools, time, and patience. Complex patterns or large formats may benefit from hiring a professional tile installer. Panelsdesigned for DIY projects can be installed with basic tools.

Consider your abilities and commitment before taking on a tile job. Pros can save time and provide expertise for challenging spaces.

Prepare Your Work Area

Once you have gathered your sink backsplash materials, it’s time to prepare for installation. Proper preparation prevents problems down the road:

Clear Counters and Sink Area

Remove everything from counters and around the sink to provide a wide, unobstructed workspace. Have all items that you will need on hand before starting.

Protect Surrounding Surfaces

Cover the floors, countertops, appliances, and other areas of the kitchen with rosin paper or plastic sheeting. Secure with painter’s tape. This protects from damage during the installation process.

Shut Off Water Supply

Locate the shut off valves for the sink and shut off the water supply completely before beginning. This prevents accidents if the sink or supply lines are bumped or removed.

Inspect Behind Walls

Remove existing backsplash materials or drywall behind the sink area. Inspect walls for any leaks, mold, warped areas, or damage that needs repairing before installing the new backsplash. Fix issues to provide a smooth surface.

Gather Tools and Materials

You will need safety gear like glasses and gloves, plus tools for measuring, cutting, applying adhesive, grouting, and cleaning. Refer to the tools list later in this guide for the complete list.

Thorough prep work allows your backsplash installation to go smoothly and efficiently from start to finish.

Measure and Plan Your Layout

Careful measurement and planning ensures you purchase the correct amount of materials and achieve the layout and design you want.

Measure Your Backsplash Area

Use a tape measure to measure the height and length of the wall area behind your sink that will be covered by the backsplash. Round measurements up to account for uneven walls.

Record these measurements – you will need them for purchasing materials and planning the layout.

Account for Outlets and Obstacles

Note the location of any outlets, switches, windows, or other obstacles on the backsplash area. These will need to be accommodated in the tile layout.

Map Your Tile Layout

Sketch a diagram of the backsplash space and indicate the planned layout of full tiles, cut tiles, accent tiles, and trim. Measure and mark the center point. Dry lay tiles on the countertop to visualize layout options.

Order Extra Tiles

Order 10-15% more tile than your measurements indicate to allow for cuts, waste, and future repairs. Leftover uncut tiles are useful for replacements down the road.

Accurate planning and measurements ensure you end up with the right amount of materials for a seamless installation.

Cut the Tiles

With your materials on hand, the next step is cutting any specialty pieces and border tiles to the proper size:

Measure and Mark Cuts

Use a tile marker to mark the measured size or shape on tiles that need cutting to fit around outlets, corners, or edges. Always double check measurements before marking.

Score and Snap Tile

Use a tile cutter to score the tile on the marked cutting line, applying firm, even pressure. Position the scored line over the edge of the tile cutter and snap downward to break cleanly.

Smooth Rough Edges

Use a rubbing stone to smooth any rough edges on cut tiles. Check each piece to ensure proper fit.

Cut Outlets and Obstacles

For outlet openings, trace the outline and use a rotor tool with a tile bit to cut the opening. Make notch cuts with tile nippers for small or tight areas.

Complete Border/Edging Tiles

Measure and cut L-shaped pieces, edge tiles, trim, and accent tiles as needed to complete the layout.

Cutting tiles takes some practice to master. Have extra tiles on hand in case of mistakes. Ensure all tiles are cut to the necessary size and shape before installation.

Apply Adhesive and Set Tiles

With all prep work complete, it’s time to apply adhesive and set the tiles into place on the wall:

Apply Adhesive to Wall

Use a notched trowel to spread a thin, even layer of tile mastic adhesive on the wall area. Apply only 1-2 square feet at a time to prevent drying before tiles are set.

Set Tiles in Place

Beginning in the center according to your layout, press tiles firmly into the adhesive, using spacers to maintain even grout lines. Work outwards row by row.

Check Alignment

As you go, use a level and tape measure to verify tiles are plumb and aligned. Adjust as needed before the adhesive dries.

Allow Adhesive to Cure

Let the tile mastic fully cure overnight before grouting according to manufacturer directions. This prevents tiles from shifting or sliding out of place when grouting.

Applying the tiles carefully and methodically ensures they adhere properly to the wall and align correctly for a professional finish.

Mix and Apply Grout

Mixing and applying grout requires special techniques to fill joints completely without staining tiles:

Mix Grout

Prepare grout mix according to package directions, using cool, clean water. Allow to slake for the recommended time before use. Mix occasionally with a grout float to maintain consistent texture.

Apply Grout to Joints

Holding the grout float at a 45° angle, press a small amount of grout firmly into the joints, scraping off excess. Clean tiles diagonally across joints to remove residues.

Clean Grout Haze

Once grouted, use a damp sponge to clean tiles and wipe off haze before it dries. Rinse sponge frequently and change water often to properly clean tiles and prevent spreading dirty grout.

Allow Grout to Cure

Let grout dry completely according to manufacturer recommendations before continuing with sealing or using the sink. Proper curing prevents cracks, washout, and weak joints.

Grout ties the whole installation together, so take care to fully fill joints and keep tiles clean for best results.

Seal and Finish the Backsplash

Sealing and finishing steps protect your investment and complete the installation:

Seal Grout and Tiles

After grout has cured, apply grout sealer using a small foam brush. Apply thin, even coats and wipe away excess. Allow sealer to cure per directions before use. Sealing prevents stains and damage.

CaulkEdges and Joints

Run a flexible silicone caulk along all joints between the backsplash tiles and the counter, walls, and sink. Smooth with a wet finger for a neat finish. Caulk seals edges to prevent moisture intrusion.

Install Accessories

Reinstall any soap dispensers, racks, faucets, or other accessories that were removed before the backsplash installation.

Clean the Backsplash

Use a specialized tile and grout cleaner to remove any remaining grime, residue, or haze and complete the job. Avoid abrasive cleansers which can damage grout or etch tile.

Take steps to seal, caulk, accessorize, and clean your new backsplash to maximize functionality and beauty.

Helpful Tips and Tricks

Follow these additional pointers to make your sink backsplash installation go smoothly:

  • Use painter’s tape on walls and countertops when cutting tiles to prevent damage.
  • Change out wet saw water frequently to minimize mess and keep cuts clean.
  • Wipe away any thinset, grout, or sealer from face of tiles before drying using a damp sponge.
  • Allow adhesives, thinset, grout, and sealers full curing times before continuing to next steps. Rushing can ruin the installation.
  • Plan your tile layout visually using actual tiles before installing for best spacing and pattern alignment.
  • Be extremely careful when working around sinks and plumbing to avoid costly damage or leaks.

Supplies You Will Need

Gather these recommended supplies before starting your sink backsplash installation:

Safety Gear

  • Safety glasses
  • Dust mask
  • Knee pads
  • Gloves


  • Tape measure
  • Pencil
  • Level
  • Tile cutter
  • Tile nippers
  • Tile file
  • Rotor tool with tile bit
  • Bucket
  • Notched trowel
  • Grout float
  • Rubber grout float
  • Sponges
  • Mixing paddle


  • Backsplash tiles
  • Thinset mortar
  • Tile spacers
  • Grout
  • Grout sealer
  • Silicone caulk
  • Cleaning products


How long does it take to install a sink backsplash?

Budget 1-3 days for installing a tile backsplash, depending on the size of the project and your skill level. Allow additional time for adhesive, grout, and sealers to fully cure between steps.

What height should a sink backsplash be?

Standard height is 4 inches above the countertop. For a focal point, go as high as 6-8 inches or to the bottom of wall cabinets. Measure your space to customize.

Should you seal tiles before or after grouting?

Sealing happens after grouting. Sealing tiles first prevents proper grout adhesion. Allow grout to cure fully before applying any sealer.

What kind of caulk should be used between backsplash and countertop?

Kitchen and bath silicone caulk adheres well and contains mold and mildew inhibitors to prevent caulk breakdown. Avoid latex caulks, which can degrade.

Is it cheaper to do tile backsplash yourself or hire a pro?

DIY installation costs less in materials, though a handy homeowner has some learning curve. A pro backsplash install costs more but goes quicker and with greater expertise.


Adding a beautifully tiled backsplash behind your kitchen sink can protect your walls, add high-end style, and increase your home value. With proper planning, materials, and time, you can achieve stunning results and avoid paying for installation labor.

Follow the techniques for tile cutting, setting, grouting, sealing, and caulking in this comprehensive guide to gain confidence in installing your sink backsplash successfully from start to finish. Paying attention to every preparation and installation detail will lead to a durable, attractive backsplash installation that upgrades your whole kitchen.