How to Install a Subway Tile Backsplash

Installing a subway tile backsplash involves preparing the wall, applying adhesive, placing tiles in a staggered pattern, and finishing with grout and caulk.

1. Make Your Canvas Perfect. Turn off electricity to any outlets and remove outlet covers. Clean the wall thoroughly and sand any glossy surfaces to help adhesive bond. Fill holes or cracks with spackling compound and let dry completely. Prime bare drywall or newly patched areas.
2. Map It Before You Stick. Measure the backsplash area and mark the center point on the wall. Use a level to draw horizontal and vertical reference lines. Dry-lay tiles on the counter to determine your starting point and ensure even spacing around outlets and edges.
3. Spread the Foundation Right. Mix tile adhesive according to package directions, preparing only what you can use in 30 minutes. Apply adhesive to a 3-foot section using the flat side of your trowel, then create ridges with the notched edge at a 45-degree angle.
4. Start From the Middle Out. Start at your center reference line and place the first tile, pressing firmly and twisting slightly. Insert spacers and continue across, checking level frequently. Work from center outward to maintain symmetry.
5. Build Your Brick Pattern. For the second row, start with a half tile to create the classic subway pattern offset. Press each tile firmly, ensuring consistent spacing and removing excess adhesive from joints immediately with a damp cloth.
6. Precision Cuts Save Time. Measure and mark tiles that need cutting around outlets or edges. Use a wet saw or tile nippers for clean cuts. For outlets, measure precisely and cut slowly to avoid cracking.
7. Clear the Field First. Remove all spacers after adhesive sets for 24 hours. Clean tile surfaces and joints of any remaining adhesive. Vacuum or brush out loose debris from grout lines.
8. Fill Every Joint Solid. Mix grout to a toothpaste consistency. Using a diagonal motion, spread grout across tiles with a rubber float, pressing firmly to fill all joints completely. Work in small sections to prevent grout from hardening.
9. Reveal Your Clean Tiles. Wait 15-20 minutes, then use a damp sponge to wipe tile surfaces clean, rinsing sponge frequently. Remove grout haze with circular motions, being careful not to pull grout from joints.
10. Lock In Your Work. After grout cures for 72 hours, apply grout sealer if using cement-based grout. Caulk the joint between countertop and bottom tile row with matching caulk. Reinstall outlet covers and restore power.