Bathroom Tiling

Tiling is the part of your bathroom you look at every single day, and it is also the least forgiving. A floor that is a few millimetres out of level, a substrate that flexes, or grout lines that wander will haunt a bathroom for years. Good tiling is quiet craftsmanship — you notice it only because nothing bothers you.

Across Auckland we tile bathrooms from compact villa ensuites in Grey Lynn to large master suites on the North Shore. This page walks through how we prepare, lay and finish tile so the result is dead level, properly bonded and built to last on top of correct bathroom waterproofing. When you are ready, Get a Free Quote.

Choosing the right tile for an Auckland bathroom

Material choice drives everything that follows — from how we prepare the substrate to the grout joint we can hold. Each option behaves differently underfoot and under a wet cloth, so we match the tile to where it is going.

• Porcelain — our default for floors and wet walls. It is dense, absorbs almost no water and shrugs off Auckland's humidity. Rectified porcelain lets us run tight, consistent grout lines.
• Ceramic — lighter and softer, excellent for dry walls and feature areas where a glaze or colour matters more than foot traffic.
• Mosaic — sheets of small tiles that follow curves and falls beautifully, which makes them ideal on a shower floor where the surface tips toward the waste.
• Large-format — 600x1200mm and larger panels that give an almost seamless, luxurious wall with very few grout lines. They demand a flat substrate and are heavy to hang, so they are a tiler's tile, not a DIY one.

We will talk you through slip rating, tone and maintenance before anything is ordered, and we always recommend buying a little extra from the same batch so a future repair matches.

Substrate preparation — what happens behind the tiles

The most common failure we are called to fix is not a bad tile; it is a bad substrate. Tile is only ever as stable as what sits behind it. Before a single tile goes up, we make sure the background is sound, flat and rigid.

• Fibre-cement sheet — on walls and floors in wet areas we line with fibre-cement rather than relying on plasterboard, because it will not swell or degrade if it ever gets damp.
• Floor stiffness — timber floors flex, and flex cracks grout and tiles. We check joist spacing and sheet thickness and add bracing or an uncoupling layer where a floor needs it.
• Movement joints — tiles expand and contract. We design in movement joints at changes of plane, around the perimeter and across larger floors, filled with colour-matched flexible sealant rather than rigid grout.
• Flatness — large-format tile in particular shows every hollow. We screed and level substrates so the finished surface reads flat under raking light.

Coordinating tiling with waterproofing

Tiling and waterproofing are two trades that must be planned as one. Tile and grout are not waterproof — water passes through grout lines over time, so the membrane underneath is what actually protects your home. We never tile over waterproofing that has not been correctly applied, cured and (where required) inspected.

We sequence the job so the membrane is taken up the walls to code height in the shower, lapped into the floor waste and fully cured before tiling begins. Falls to the waste are formed in the screed, not faked with grout. If you would like the detail on this critical step, see our waterproofing page — it is the part of a bathroom where cutting corners is most expensive.

Laying dead level, setting out and grout joints

A professional tiling job is decided before the adhesive goes on, in the set-out. We dry-lay and plan the grid so cuts land where the eye forgives them, full tiles sit at focal points, and grout lines align across floor, wall and niche. Nothing looks more unresolved than a sliver of tile against a doorway or a grout line that misses the vanity.

• Dead level and plumb — floors laid to correct fall but visually level, walls run true to a laser line so shelves and mirrors sit square.
• Full adhesive coverage — we back-butter and comb adhesive to avoid voids, which are where tiles later crack or sound hollow.
• Grout choice — we match grout colour to the scheme and use the right grout for the joint, with epoxy grout available for showers where stain resistance matters.
• Silicone, not grout, at junctions — internal corners and the joint where tile meets bath or basin are finished in flexible silicone so they can move without cracking.

Slip ratings and safe floors

A bathroom floor is wet, often, and a slip there is serious. New Zealand tiles carry a slip rating, and we select floor tiles with appropriate slip resistance for a wet area — a higher-grip finish on the shower floor and a sensible rating across the rest of the room. Smaller tiles and mosaics on a shower base add grout lines that give extra grip underfoot.

We balance safety with cleaning: a floor that is too textured traps grime, so we choose a finish that is secure barefoot but still wipes clean. For accessible and mobility bathrooms we go further again on slip resistance and level-entry detailing.

Where tiling sits in your renovation

Tiling rarely happens in isolation. It is one stage of a sequence — demolition, framing changes, plumbing and electrical rough-in, waterproofing, tiling, then fit-off of your vanity and cabinetry and tapware. As part of a full bathroom renovation, tiling is scheduled so earlier trades are signed off before we start and later trades are not held up.

As a rough guide, tiling and its preparation are a meaningful slice of a standard full renovation, which typically lands in the $20,000–$35,000 range depending on size, layout and fixtures. Tile cost itself ranges widely — from honest, hard-wearing porcelain to book-matched feature walls. We will give you a fixed written quote once the scope and tile selections are settled, with no surprises part way through.

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