Backsplashes

Have ready

Clear the counter completely, including the small appliance you use every day, and take the outlet and switch plates off if you want to keep them. Tell us if the wall is plaster, tile, or greenboard, because that changes the prep. Before any tile is set we check three things: the flatness of the wall with a straightedge, the depth of the electrical boxes against the finished tile face, and whether the counter is level at the back edge. A low spot behind a large tile is a lippage problem later.

• Layout that avoids slivers
• Outlet extensions
• Sealed edges at the counter
• Grout that matches the stone

The visit

Layout starts at the center of the sink or the range, not at the corner of the wall, so you do not get a sliver next to the faucet. Outlets get box extenders so the plate sits on the tile instead of floating in front of it. We seal the counter joint with a color-matched caulk, not grout, because that joint moves.

The usual failure is tile set on a wavy plaster wall in an older Red Bank or Ocean Grove kitchen. Large tile lippage shows every ridge. We skim the wall flat before the first tile goes up.

Permit

Tiling a backsplash on an existing wall normally does not require a permit in New Jersey. Adding a receptacle, moving a box, or running a new circuit for an under-cabinet light does require electrical work and, in most towns, an electrical permit with an inspection. If the plan touches wiring, we handle it as an electrical step in its own right. Tiling over a wall with no electrical change is a finish scope.

On the Shore

Kitchen walls in this region fight moisture from both sides. Shore humidity and cooking steam work into a plaster or greenboard wall, and a backsplash that is grouted hard at the counter joint cracks as the framing moves with the seasons. We use a flexible sealant at the counter, not grout, and we set tile with a modified thinset that tolerates a little movement. Behind a range, the wall sees heat as well as steam, so a heat-tolerant adhesive matters there.

When we leave

When the tile is set and the grout has hazed, we wipe it down, buff it, and reinstate every outlet and switch with a box extender so the plate sits flat against the tile rather than rocking on it. The counter joint gets a bead of color-matched sealant and a finger-tooled edge. We run the disposal and the faucet to confirm nothing weeps. Grout needs the rest of the day and the caulk needs overnight before the counter goes back into normal use.

Built with

Modified thinset for the bond, a white version under glass and light stone so the color does not read through. Grout is sanded or unsanded to match the joint width. At the counter and any inside corner we use a flexible, color-matched sealant rather than grout. Box extenders bring the devices out to the new surface, and a notched trowel matched to the tile size keeps the coverage even. A backer board or a skim coat flattens a wavy wall before tile.