How to Do Bathroom Backsplash

An In-Depth Guide for Planning, Installing, and Designing Your Bathroom’s Backsplash

Every bathroom needs a stylish backsplash to protect the walls behind sinks, tubs, and showers from moisture damage. A bathroom backsplash also serves as a decorative focal point that ties your design together. With the right materials and techniques, you can create a stunning, custom look for your bathroom backsplash. This comprehensive guide covers everything you need to know, from planning and prep work to selecting materials and designs to expert installation tips. Follow along to DIY an eye-catching bathroom backsplash that boosts functionality and aesthetics.

Planning Your Bathroom Backsplash Project

The first step is proper planning and preparation. Rushing into a backsplash project can lead to frustration, mistakes, and subpar results. You’ll save yourself time, trouble, and money by taking the time upfront to make decisions and get organized.

Determine the Size of Your Backsplash Area

Measure the surface area behind sinks, tubs, showers, and any other areas needing protection. This allows you to calculate how much backsplash material you’ll need to purchase. Be sure to account for pattern matching and tricky angles. Having extras on hand is wise in case you make errors or later expand the backsplash.

Choose Your Materials

Many options exist for bathroom backsplash materials, including:

  • Ceramic tile: A classic choice, available in endless colors, sizes, shapes, and patterns. Relatively affordable and easy to install.
  • Glass tile: Adds brilliant shimmer. Prone to cracking, so handle with care. Difficult for DIY installation.
  • Natural stone: Elegant and durable but heavy and costly. Needs resealing over time. Hard to install solo.
  • Stainless steel: Sleek, modern look. Avoid if seeking vintage charm. Shows smudges. DIY-friendly lightweight sheets.
  • Pressed metal: Mimics looks of pricey metals for less. Scratch-resistant with pops of polish. Clean industrial vibe.
  • Peel-and-stick tiles: Budget option with easy application. Many styles but durability issues. Suited to rentals.

Consider the pros and cons of each material vis-à-vis your own bath’s size, layout, color scheme and style. How much upkeep and cleaning will the material require? What costs fit your budget?

Select Your Design

The design options for bathroom backsplashes are limited only by your imagination and skills. Consider:

  • Simple white subway tile
  • Contrasting rows of rectangular stone
  • Intricate mosaic patterns
  • Ombre glass tiles
  • Mirrored accents

Look through home inspiration sources like Houzz and Pinterest to find looks you love. Reflect your personality via shapes, colors, and patterns. Remember to complement your cabinetry and countertops.

Gather Your Supplies

Having all the necessary supplies on hand prevents mid-project headaches from missing items. Essential supplies include:

  • Backsplash tiles/material
  • Mortar or mastic adhesive
  • Grout
  • Trowels, buckets, sponges
  • Tile cutter or wet saw
  • Safety gear: gloves, goggles, knee pads
  • Drop cloths

Stock up on extras like additional tile, grout and adhesive for mistakes or future repairs.

Protect Surrounding Areas

Cover nearby surfaces with drop cloths and painters tape to protect from splatters, drips, debris, and damage during installation. Remove bath fixtures and hardware and store safely aside. Clear sufficient workspace for large sheets of backsplash material.

With planning completed, it’s time to prep your installation surface.

Preparing Your Bathroom Walls for Backsplash Installation

Proper prep work ensures your backsplash adheres and lasts beautifully long-term. Don’t skip these important steps:

Clean Surfaces Thoroughly

Use TSP or degreasing cleaners to remove any dirt, soap scum, oils and other residues from installation areas. Rinse and let dry fully. Dust walls with a microfiber cloth before applying backsplash.

Check for Moisture

Excess moisture under your backsplash can cause adhesion issues, mold, and mildew. Test for dampness using a moisture meter, especially around tubs and showers. Allow extra time for drying if needed. Consider applying water barrier paints or membranes before tiling.

Remove Outlets and Fixtures

Outlet covers, mirror mounts, bath fixtures and anything protruding from walls must be removed before backsplashing. This avoids awkward tile cutting and holes in the design. Label items for easy replacement later.

Fill Any Holes and Imperfections

Examine walls closely for cracks, holes, rough patches and indentations. Fill minor flaws with spackle or caulk to level the surface. Spackling avoids Natural Stone gaps in intricate tile patterns. Large uneven areas may require wall leveling compound.

Sand Painted Surfaces Lightly

For glossy painted walls, lightly sanding opens pores so the adhesive can grip better. Use 100-150 grit sandpaper and avoid exposing bare drywall. Wipe away sanding dust.

With clean, dry, smoothed walls you’re ready to start installing your stunning bathroom backsplash.

Installing Your Bathroom Backsplash Step-by-Step

Follow these key steps to properly install your backsplash tiles or sheets:

Step 1: Apply Adhesive Mortar or Mastic

Most tiles require being set into a mortar or mastic adhesive applied directly onto the wall surface. Use a notched trowel to spread an even layer of adhesive the width and length of your first tile sheet. Apply only enough adhesive to work in one section at a time.

Tip: Pick an adhesive suited to your tile type – cement-based mortar for natural stone, mastic for ceramic, panel adhesive for wallboards.

Step 2: Mount Your Backsplash’s First Row

Start with the bottom row of tiles or sheets. Place the first piece against the wall into the adhesive bed. Press firmly to ensure full contact and even adhesion. Use spacers between tiles to get straight grout lines. For sheets, use a J-roller tool to flatten against the wall.

Step 3: Build Rows Gradually

Work methodically outward from your first row. Apply adhesive in sections and lay tiles/sheets piece-by-piece or row-by-row. Per the manufacturer’s instructions, allow the adhesive to become tacky before applying tiles. Cut border and edge pieces as needed for a precise fit.

Step 4: Let Adhesive Cure

Before grouting, allow adhesive to fully cure – usually 24-48 hours. This prevents tiles from shifting during grouting. If any corners lift up, firmly press them down again. Don’t walk away mid-job without ensuring proper adhesion is achieved.

Step 5: Mix and Apply Grout

Grout fills in gaps between tiles with a waterproof seal. Use non-sanded grout for narrow joints under 1/8-inch wide. For wider gaps use sanded grout. Follow package mixing directions. Apply grout by packing it firmly into crevices, then smoothing flush.

Step 6: Clean Excess Grout

Once grout becomes partly dry on the tile face, wipe it away with a damp sponge in circular motions. Rinse the sponge and re-wipe until tiles are clean of haze and residue. Use a dry cloth for final polish. Allow 24 hours for grout to fully cure before exposing to moisture.

And you’re done! Stand back and admire your professionally finished, on-trend bathroom backsplash.

Design Ideas for Bathroom Backsplashes

Beyond basic white tile, today’s backsplashes offer limitless possibilities to make your bath truly one-of-a-kind. Here are inspiring design ideas:

Mirrored Accents

Strategically placed mirrored tiles infuse glamour and visually expand smaller baths. Cluster sparkling accents behind faucets or frame the whole backsplash.

Natural Stone Mosaics

Multiple stone types in mosaic patterns add earthy warmth. Blend granites, travertines and marbles in neutral tones for Zen-spa appeal. Add some turquoise blue stone as pops of color.

Ombre Glass Tiles

Ombre glass tile backsplashes fade light to dark for a tranquil, watery effect. Choose sea glass greens, sky blues or sunset oranges. Line up running bond layouts.

Geometric Patterns

Crisp geometric designs in glossy ceramic and porcelain tiles create modern impact. Try offset white hexagons or interlocking black and white diamonds.

Subway Tile Designs

Update classic white subway tiles with contrasting grout. Bold dark grey grout transforms plain tiles into graphic displays. Shape subway tiles into herringbone, basketweave or chevron layouts.

Mix and Match

Blend materials, colors, sizes and textures for eclectic flair. Try a combination of glass, ceramic and marble mosaic tiles or mix metallics and marbles.

Take cues from your bath’s existing features to design a backsplash that pulls the whole room together into a cohesive vision.

Bathroom Backsplash Ideas for Common Areas

Backsplashes aren’t limited to behind sinks and stoves. Consider installing backsplashes in these often-overlooked bathroom spots for added protection and beauty:

Tub Surrounds

Tiling around bathtubs prevents water stains and damage on drywall. Extend tiles from the tub edge up to ceiling height for a seamless look. Add accent strip tiles vertically for interest.


Full-wall shower tiles prevent mold growth in moist areas. Choose easy-to-clean glossy tiles laid in intricate patterns. Frame showers with decorative listello, mosaic or marble inserts.

Toilet Backwalls

Add tiles around and behind toilets to guard from splashes and condensation. Contrast toilet tank colors with bold complementary backsplash hues.


Backsplash niches, shelves and alcoves to display bath accessories and plants. Define built-in shelving with surrounding tiles or glass tile accents.

Anywhere you want to add personality or functionality, consider integrating special backsplashes.

DIY vs. Hiring Pros for Bathroom Backsplashes

Installing bathroom backsplash tiles falls within DIY capabilities for many homeowners armed with the right tools and tutorials. But larger formats like natural stone and glass mosaics often prove challenging for novices, with heavy labor and tricky specialty cutting involved.

Evaluate whether your project suits a DIY effort or warrants hiring professional tilers. Pros can:

  • Handle plumbing dis/reconnection
  • Correct underlying wall flaws
  • Achieve intricate layouts
  • Source rare specialty materials
  • Manage heavy glass or stone sheets
  • Provide perfectly straight grout line spacing
  • Apply waterproofing treatments
  • Accurately cut L-shaped corners, edges and curves

The upfront cost of pro labor saves headaches and do-overs. But DIY can save thousands if you have the skills. Building codes may also require pro involvement. Assess your abilities thoroughly before deciding.

FAQs About Bathroom Backsplash Installation

Still have questions about creating your dream backsplash? Here are answers to homeowners’ most frequently asked questions:

How much does a bathroom backsplash cost?

Budget $3-$50 per square foot for materials based on your tile choices. Pro installation ranges $10-$25 per square foot. Fancy stone or glass mosaics fall on the pricier end.

What are the best backsplash tiles for bathrooms?

Glossy ceramic, porcelain or glass tiles withstand bathroom moisture best. Pick textured stone or slip-resistant tiles for wet floors or shower surfaces.

How do I cut backsplash tiles?

Use a wet saw with a diamond tile blade for precision cuts, especially for porcelain tiles prone to chipping. A score-and-snap tile cutter works for straight cuts in ceramic. Abrade cut edges with sandpaper.

Can you put tile backsplash in a bathroom with no window?

Yes, backsplashes breathe style into windowless baths. Opt for light reflective tiles to brighten the space. Add LED lighting for ambiance. Ensure proper ventilation to control humidity.

How high should a backsplash go in a small bathroom?

In a narrow bath, limit backsplash height to 6-12 inches above vanities or tubs to keep the room looking airy. Full 4 foot high backsplashes can make petite baths feel closed in.

Get Inspired and Start Your Bathroom Backsplash Project

As this guide illustrates, backsplashes are a simple upgrade that produces an outsized visual impact in any bathroom’s design. With so many materials and patterns to select from, you can easily create a backsplash tailored to match your personal vision. Prepping your space properly and adhering to sound installation techniques will ensure your new backsplash enhances your bath’s functionality and beauty for years to come. Hopefully these insights give you the confidence and know-how to tackle this easy weekend upgrade that takes your bathroom design from dull to dazzling.