How to Put in a Backsplash – A Complete DIY Guide

A backsplash is an integral design element in any kitchen remodel or new construction project. Installing a stylish, durable backsplash protects your walls from water damage and splatters while adding visual interest to your space. With proper planning and preparation, you can tackle this project as a DIYer and save on installation costs. This comprehensive guide provides tips and instructions for successfully installing a backsplash tile yourself.

Selecting Your Backsplash Tile

Choosing the right backsplash tile sets the tone for your whole kitchen design. Consider the following factors when picking out your backsplash tile:


Ceramic and porcelain tiles are two popular backsplash options that are affordable, readily available, and easy to install. Natural stone tiles like marble, travertine, and granite offer elegance but are more expensive. Glass tiles add a contemporary look, while metal tiles give an industrial vibe.


Match or complement your cabinetry, countertops, appliances, and overall decor. A neutral tile color is a safe choice that won’t clash. bold colors or elaborate patterns make more of a statement.


Glossy, reflective tiles have depth but show smudges. Matte or honed finishes better disguise messes. Embossed, textured, or hand-painted tiles provide visual interest.


Smaller tiles, like mosaics or 3×6 subway tiles, yield more grout lines for a grid-like look. Larger tiles, 12×12 or bigger, have fewer grout lines and create a smoother appearance. Combine sizes for contrast.


Ceramic/porcelain tiles are the most budget-friendly ranging from $5-20 per square foot installed. Natural stone runs $40-100 per square foot. Glass tiles cost $20-50 per square foot.

Once you’ve settled on a material and style, order or purchase enough tile for your project allowing 10% extra for cuts and waste. Avoid last-minute shortages or color discrepancies.

Preparing Your Work Area

Installing a backsplash makes a mess. Protect your counters, floors, appliances, and surrounding surfaces with rosin paper, plastic sheeting, or drop cloths secured with painter’s tape. Cover nearby doorways with plastic sheets. Have all materials and tools ready and accessible to maintain an organized workspace.

Gathering Supplies

These essential items complete your backsplash installation toolkit:

  • Backsplash tiles
  • Tile adhesive (thinset mortar)
  • Grout
  • Notched trowel for spreading adhesive
  • Grout float for applying grout
  • Grout sealer
  • Mixing bucket for thinset/grout
  • Tile spacers
  • Tile cutter and/or wet saw
  • Rubber grout float
  • Grout sponge
  • Clean buckets for water
  • Rags, towels, sponges
  • Tape measure
  • Level
  • Utility knife
  • Carpenters square
  • Pencil
  • Safety gear: gloves, goggles, mask

Prepping the Surface

Proper prep work ensures your tiles adhere properly. Follow these steps:

  1. Clean the surface thoroughly – Remove any existing backsplash. Eliminate all grease, soap residue, and dust. Wash with an all-purpose cleaner and let dry completely.
  2. Remove outlet covers – Take off any electrical outlet covers that are in the backsplash area. Turn off power to these outlets at the breaker box.
  3. Make any drywall repairs – Fill any cracks, holes, or imperfections with drywall compound and let dry completely. Sand smooth.
  4. Mark a level line – Measure up from your counter and mark a level line at the bottom edge of where you’ll install the backsplash. Use a level tool to ensure a straight, even line.
  5. Apply primer – Brush or roll on a layer of primer over the installation area. This helps the thinset adhere. Allow primer to dry fully.

Your workspace is now prepped and ready for tiling!

Installing the Backsplash Tile

Follow these step-by-step instructions to properly install your backsplash tiles:

  1. Plan your tile layout – Dry fit tiles on the countertop first to determine the optimal layout and identify any cuts. Avoid small slivers of cut tiles around the perimeter.
  2. Mix the thinset – Prepare the thinset mortar by mixing powered adhesive with water in a bucket according to package directions. Let sit 5-10 minutes then stir again to proper consistency.
  3. Apply the thinset – Use the notched edge of your trowel to spread a layer of thinset onto the surface area, holding at a 45-degree angle. Spread only as much as you can tile over in 30 minutes.
  4. Place your first tile – Set the corner tile on the pre-marked line with the edge of the tile on the vertical line and bottom aligned to the horizontal line.
  5. Add spacers – Put tile spacers around all sides of the first tile to achieve consistent grout lines. Push tile firmly into the thinset.
  6. Continue setting tiles – Spread thinset and set subsequent tiles one by one working horizontally and vertically keeping spacers between each.
  7. Check level and alignment – As you go, use a level on tiles to ensure they’re plumb. Inspect the grid to make sure tiles align. Adjust as needed.
  8. Cut and place perimeter tiles – When you reach the edges, measure and cut tiles to fit using a wet saw or tile cutter. Grind the cut edges smooth. Place cut tiles along the perimeter.
  9. Let thinset cure – Allow thinset to fully cure for 24-48 hours. Avoid working on or cleaning tiles during this time. Remove spacers.
  10. Grout tile joints – Mix grout with water in a bucket and apply it over the tiles using a rubber grout float pressing into joints. Wipe excess grout off tiles.
  11. Clean tiles – Once grout has cured per package directions, use a damp sponge to wipe grout haze off the tiles. Rinse sponge frequently. Allow tiles to dry completely.
  12. Seal grout – Apply grout sealant to the grout lines using a small foam brush. Wipe off excess. This protects grout from stains.
  13. Reinstall outlet covers – Put back any electrical cover plates removed before tiling. Turn power back on once outlets are covered.
  14. Caulk perimeter – Run a bead of waterproof silicone caulk along the joint between the backsplash and countertop. Smooth with finger.

Allow caulk to dry completely before using the backsplash. Thoroughly clean the area and seal/protect surfaces. Enjoy your stunning new backsplash!

FAQs About Installing a Backsplash

What’s the best way to cut backsplash tiles?

Cutting tile requires specialized tools. A wet saw (tile saw) equipped with a diamond blade creates clean, accurate cuts. Angle grinders with diamond blades can cut small jobs. Use a tile cutter tool for straight cuts and score/snap tile nippers for irregular notches.

How do I create a hole in a tile for an outlet?

Trace the exact shape of the outlet onto the tile then use a carbide-tipped drill bit in a rotary drill to drill a series of holes just inside the outline. Tap the center out with a hammer and chisel then use a tile file to smooth the edges. Make sure power is off when drilling near electrical boxes.

Should I use sanded or unsanded grout?

Grout with sand is often used on floors or wider grout lines. For typical backsplash grout joints 1/8 inch or smaller, unsanded grout is the better choice. It creates a smoother finish and wipes cleaner on wall installations.

What’s the minimum height a backsplash should be installed?

Standard backsplash height is 4 inches above the countertop, though you can go higher or lower according to your preference. Building codes require a minimum 4-inch backsplash height in kitchens and bathrooms as a water-protective measure.

Should I seal my backsplash?

Sealing is highly recommended to prevent stains and damage, prolong tile life, and make cleaning easier. Apply multiple coats of penetrating sealant formulated for natural stone or ceramic/porcelain tile. Re-seal periodically. Avoid sealers on polished marble or delicate tile.

How do I clean and maintain my backsplash?

Use pH-neutral daily cleaner to wipe down tile. Avoid harsh chemicals or abrasive pads. Buff with soft cloth. For soap scum or hard water buildup, wipe with equal parts white vinegar and water. Re-seal grout annually. Promptly address any cracked, loose, or damaged tiles.

Tips for a Successful Backsplash Installation

  • Carefully plan tile layout on paper first to determine optimal placement and identify necessary cuts
  • Thoroughly mix thinset mortar to a toothpaste-like consistency; let sit 10 minutes before applying
  • Apply just enough thinset to install what tiles you can within 30 minutes
  • Use level and carpenter’s square tools frequently to ensure proper alignment
  • When cutting tiles, take your time and double check measurements
  • Let thinset fully cure for 1-2 days before grouting
  • Apply grout sealant to finished grout lines for maximum stain resistance
  • Always keep a damp sponge handy when grouting to wipe up excess
  • Don’t walk on tiles or get grout/thinset on surfaces you want to protect
  • Let tiles dry completely before sealing or using newly tiled area


Installing a backsplash is an achievable DIY project that can completely transform the look of your kitchen or bath. With the right planning, tools, and attention to detail, you can obtain professional-looking results and save on installation labor costs. Carefully following the techniques described above will set you up for backsplash success. Just take it step-by-step and don’t be afraid to ask experts for advice. Once your stylish new backsplash is in place, you’ll gain a sense of personal accomplishment along with a redesigned space.