Tiling over an existing backsplash can completely transform the look and feel of your kitchen. However, it does require some planning and preparation to ensure the new tiles adhere properly and give you the finished look you want. This comprehensive guide covers everything you need to know to successfully tile over an existing backsplash.
Assessing the Existing Backsplash
The first step is to assess the current state of your backsplash and determine if it needs any repairs or surface prep before tiling.
Check for Damage or Imperfections
Carefully examine the existing backsplash for any cracked, missing, or broken tiles that need replacing. Also look for grout lines that need re-grouting. Fix any minor damage to provide an even surface for the new tiles.
Evaluate Surface Smoothness
Run your hand over the entire surface and feel for any significant bumps, inconsistencies, or irregularities that could prevent the tiles from adhering correctly. The surface needs to be as smooth as possible.
Clean Thoroughly
Clean the existing backsplash extremely well to remove all grease, dirt and buildup. Degrease the area over the stove exhaust hood carefully. Proper cleaning allows the tile adhesive to bond best.
Consider Skim Coating
If the existing tile or drywall underneath has minor pits, gouges, cracks or unevenness, you may want to skim coat the surface with a tile surface leveling compound. This fills in imperfections for a perfectly smooth finish.
Choosing Your New Tiles
Once you have prepped the surface, it’s time to choose your new tiles. Consider the following:
Tile Material
Ceramic, porcelain or natural stone tiles all work well over existing backsplashes. Go with whatever style and material you prefer.
Tile Size
Smaller mosaic tiles are great for providing intricate designs. Larger tiles create a more seamless, contemporary look. The size you choose depends on your personal taste.
Tile Adhesive Material
Choose an adhesive specifically formulated for bonding tiles to existing surfaces. A tile mortar with a built-in polymer additive provides excellent adhesion.
Grout Selection
Pick a grout color and texture that complements your tiles. Unsanded grout works best for grout lines 1/8 inch or smaller. Use sanded grout for wider grout lines.
Preparing the Surface for Tiling
To ensure your new tiles adhere properly to the old backsplash, the surface needs to be prepared properly.
Clean and Etch the Surface
Thoroughly clean the existing tile and grout with an alkaline cleaner to remove all grease and soap scum. For maximum adhesion, etch the surface with an etching solution or lightly sand with fine sandpaper.
Apply Tile Primer
Use a tile primer designed for existing surfaces. Apply a coat over the entire backsplash and let dry completely. The primer further etches the surface for better bonding.
Apply the Adhesive
Use a notched trowel to spread a thin, even layer of the tile adhesive you’ve selected over the backsplash surface according to the manufacturer’s instructions. Don’t cover too large of an area at once.
Allow the Adhesive to Cure
Let the thinset or mastic adhesive sit for 5-10 minutes. This allows it to flash cure, which further helps the adhesion process before applying tile.
Laying the New Tile
Once your surface is fully prepped and your adhesive applied, it’s time to lay the new tile. Follow these tips:
Work in Small Sections
Tile just a few square feet at a time so the adhesive doesn’t dry out before you place the tile. Work in a stepped pattern.
Use Tile Spacers
Place tile spacers between each tile to ensure even grout line spacing. Remove spacers before grouting.
Press Tiles Firmly
Use a rubber grout float to apply firm, even pressure to adhere the tile properly. Don’t slide tiles through the adhesive.
Check Alignment
As you go, periodically check your tile alignment and make sure the tiles remain level. Adjust as needed.
Cut Border Tiles
Measure and cut border and corner tiles to fit. Use a wet saw for most accurate cuts. Grind cut edges smooth.
Clean Up Adhesive
Remove any adhesive that gets on tile surface right away with a damp sponge. Don’t let it dry.
Grouting the New Tiles
Once your tiles are firmly adhered, it’s time to grout them for a finished look:
Apply Grout Sealer
Seal the tiles and grout first with a grout sealer. This prevents staining and creates a moisture barrier.
Mix the Grout
Mix grout per package directions. Let it slake 5-10 minutes, then remix before applying. Exact grout thickness depends on tile spacing.
Spread Grout with Float
Holding the float at a 45° angle, work it diagonally across tiles to pack joints fully without removing grout.
Clean Excess Grout
Wipe diagonally across tiles with a damp sponge to remove excess grout. Rinse sponge frequently.
Final Cleaning
Once grout has cured per manufacturer’s recommendations, use a soft cloth to polish off any remaining haze or film.
Apply Grout Sealer
Apply a final coat of grout sealer to protect from moisture and staining.
With the right prep and materials, tiling over an existing backsplash is a relatively straightforward kitchen upgrade. Follow these tips and take your time to achieve gorgeous results!
Frequently Asked Questions About Tiling Over Existing Backsplash
Can you put tile over existing tile?
Yes, you can install new tile over an existing backsplash, provided the original tile is well secured and you adequately prepare the surface. Proper adhesive and grout selection are also important.
How do you prepare old tile for new tile?
To prepare old tile for tiling, thoroughly clean and degrease the surface, then etch with an etching solution or sand lightly. Apply a tile primer and use a tile adhesive formulated for existing surfaces per manufacturer directions.
Do you have to take a backsplash down before retiling?
No, it is not necessary to completely remove an existing backsplash before tiling over it. As long as the original tile is in good condition with no major cracks or missing pieces, you can add new tile directly over the old. Proper prep is key.
What kind of adhesive is best for tiling over existing tile?
The best adhesive for tiling over an existing backsplash is a high quality thinset mortar designed for maximum adhesion on existing surfaces. Look for one with a built-in polymer additive. Mastic adhesives are not advised.
Should you remove old grout before retiling a backsplash?
It is not required to completely remove all the old grout first. Simply regrout any missing or cracked grout lines to level out the surface before tiling over the old backsplash.
Can you use the same grout on new tile as the old tile?
It’s best to use fresh grout when tiling over an existing backsplash to ensure uniform color and the strongest bond. Don’t try to reuse old grout. Select a new grout color and texture that complements your new tile.
How long does it take to retile a backsplash?
The time needed to retile a backsplash depends on the size but expect it to take 1-2 days. Allow adequate time for proper prep, adhesive curing, careful tile laying, and proper grout application for best results.
Should new tile overlap or replace old backsplash?
When tiling over an existing backsplash it is generally recommended to lay the new tile over the old, aligning it in the same area, rather than overlapping onto the countertops or other surfaces. This creates the cleanest look.
Can I install subway tile over existing backsplash?
Yes, subway tiles can be installed right over an old backsplash, whether ceramic, mosaic, or another material. Follow the same preparation, adhesive, grouting, and sealing steps as you would for any other tile type.
Tiling over an existing backsplash is a big project but can completely transform the look of your kitchen. With proper planning and prep, you can install beautiful new tile over your old backsplash and get many more great years out of your kitchen!
Conclusion
Tiling over an existing backsplash offers a simple way to update the look of your kitchen without having to remove and dispose of the old tile. With some careful prep work to ensure a smooth, well-bonded surface, virtually any type and style of new tile can be installed right over the old backsplash. Taking the time to properly clean, etch, prime, and apply the right adhesive will help guarantee your new tiles adhere tightly. Follow the recommendations on proper grouting methods to prevent cracking or separation between tiles. Applying a final grout sealer protects your work. Achieving a professional-looking finished product is mainly a matter of thorough surface preparation, use of quality materials, and attention to detail as the new tile is laid. With some patience and these tips, you can successfully tackle this kitchen upgrade project yourself.