The short answer: what a tiler does
A tiler installs ceramic, porcelain, stone, mosaic and similar finishes on floors, walls, splashbacks, showers, patios and other surfaces. Their job is to create a durable, level, visually neat tiled finish that is suitable for the room and the way it will be used.
In practice, a good tiler does much more than place tiles on glue. They measure and plan layouts, prepare the surface, cut tiles accurately, set out patterns, install trims and grout, and make sure the finished job looks straight, clean and lasts. In wet areas, they also need to work closely with waterproofers and other trades so the finished area performs properly over time.
For New Zealand homeowners, tiling is often part of a bathroom renovation, kitchen upgrade, laundry refresh, entryway makeover or outdoor entertaining area. It is also a trade where the quality of preparation matters as much as the visible finish.
What a tiler actually does on site
A tiler’s work usually falls into a few stages:
- Assessing the job: checking the room, substrate, tile type, size, and any problem areas such as movement, moisture or uneven floors.
- Measuring and setting out: working out tile layout so cuts are balanced, grout lines look consistent, and features like drains, niches and taps are aligned neatly.
- Surface preparation: ensuring the base is clean, dry, stable, level and suitable for tiling.
- Installing tiles: applying adhesive, placing tiles, keeping lines straight, and using spacers or levelling systems where needed.
- Cutting and shaping: trimming tiles around corners, pipes, niches, power points, windows and floor wastes.
- Grouting and finishing: filling joints, sealing where required, cleaning excess grout, and applying silicone sealant to movement joints and corners.
- Checking the result: making sure the finished surface is sound, aligned and ready for use.
Depending on the project, a tiler may also organise materials, advise on tile choice, and coordinate timing with waterproofers, plumbers, builders or painters.
Common jobs tilers are hired for
Tilers work on a wide range of residential and light commercial jobs. The most common include:
- Bathroom floors and walls
- Showers and wet areas
- Kitchen splashbacks
- Laundry floors and splash areas
- Hallways, entries and living areas
- Outdoor patios, balconies and pool surrounds
- Feature walls and fireplaces
- Steps, thresholds and skirting details
- Repairs to cracked, loose or water-damaged tiles
- Regrouting, resealing and refresh work
In New Zealand homes, bathrooms are often the most technically demanding area because of waterproofing, floor falls to the drain, and the need for neat transitions around toilets, vanities and showers.
What a tiler does before any tiles go down
The best tiling jobs start before the first tile is installed. A tiler will usually check:
- Substrate condition: Is it concrete, timber flooring, fibre-cement, plasterboard or another base?
- Flatness and level: Large-format tiles, in particular, need a very flat base.
- Movement: Timber floors and other flexible bases may need specific preparation or reinforcement.
- Moisture and wet-area requirements: Bathrooms and showers need proper waterproofing and fall to waste.
- Tile suitability: Not every tile suits every location; for example, some tiles are unsuitable outdoors or in wet areas.
- Layout and visual finish: Tile size, pattern, border details and whether cuts will fall in visible places.
This is where a tiler’s experience matters. A cheap-looking finish is often caused by poor preparation, not just poor installation.
Materials and tools a tiler commonly uses
Tilers work with a range of tools and products, including:
| Item | What it’s used for |
|---|---|
| Tile adhesive | Bonds the tiles to the substrate |
| Grout | Fills the joints between tiles |
| Silicone sealant | Seals movement joints and wet-area junctions |
| Tile cutter or wet saw | Cuts tiles cleanly and accurately |
| Trowels and notched trowels | Spreads adhesive evenly |
| Tile spacers and levelling systems | Helps maintain consistent joints and flatness |
| Spirit level / laser level | Checks alignment and set-out |
| Buckets, sponges and mixing tools | Mixing and cleaning during installation |
| Trims and edging profiles | Provides a neat finish on exposed edges |
The right products depend on the tile, location and substrate. For example, large-format porcelain, natural stone and outdoor pavers each have different requirements.
How a tiler differs from related trades
Homeowners often confuse tilers with builders, waterproofers, plumbers and painters because their work overlaps. Here’s the difference:
| Trade | Main role | Where they overlap with tiling |
|---|---|---|
| Tiler | Installs tiles and finishes the tiled surface | Works around drains, plumbing fixtures and waterproofed areas |
| Builder | Constructs or modifies the structure and framing | May prepare walls, floors or recesses for tiling |
| Waterproofer | Applies waterproof membranes in wet areas | Prepares the area before tiling in showers, bathrooms and balconies |
| Plumber | Installs water supply, waste and fixtures | Sets the plumbing points that the tiler tiles around |
| Painter | Finishes painted surfaces | May prepare or paint adjacent walls and ceilings |
A tiler is not usually the person who designs the bathroom layout, installs the shower tray, relocates pipework or signs off waterproofing work. They may coordinate with those trades, but each has a different job and, in some cases, different licensing or regulatory requirements.
What work may require other trades or approvals
In New Zealand, some jobs linked to tiling involve regulated work or council oversight.
Plumbing, drainlaying and gasfitting
If your bathroom or kitchen upgrade involves moving pipes, drains, wastes or gas appliances, that work must be done by a suitably authorised person under the Plumbers, Gasfitters and Drainlayers Board (PGDB) regime. A tiler can tile around existing plumbing fittings, but they should not carry out restricted plumbing, drainlaying or gasfitting work unless they are properly authorised to do so.
Electrical work
If the job involves moving power points, underfloor heating connections or lighting, that electrical work is regulated by the Electrical Workers Registration Board (EWRB). A tiler can work around outlets and surface finishes, but a registered electrician is needed for electrical work.
Waterproofing
Waterproofing in wet areas is critical and must comply with the relevant New Zealand building standards and good practice. Some tilers also install waterproof membranes, but the key question is not whether someone “also does waterproofing” — it is whether they are competent, follow the correct system, and can provide the right documentation for the job.
Building consent
Not every tiling job needs a building consent, but some renovation work does. For example, if you are altering structural elements, changing wet-area construction in a way that affects compliance, or undertaking broader bathroom remodels, your local council may require a consent. It is worth checking before work starts, especially on major renovations or where the bathroom layout is changing.
How tilers approach different types of tiles
Different tiles need different methods, and a tiler will choose materials and techniques accordingly.
- Ceramic tiles: Common, relatively easy to cut, often used in kitchens and bathrooms.
- Porcelain tiles: Harder and denser; require good tools and careful cutting.
- Mosaic tiles: Small tiles that need very accurate setting out to avoid uneven lines.
- Natural stone: Can need sealing, special adhesives and more careful handling.
- Large-format tiles: Need flatter substrates and careful handling to avoid lipping and breakage.
- Outdoor pavers or tiles: Must suit New Zealand weather, freeze-thaw exposure in cooler regions, and adequate drainage.
A tiler should be able to advise whether a tile is suitable for the room and whether the substrate can take it without issues.
Signs you need a tiler, not a DIY attempt
Some small tiling jobs can be done by experienced DIYers, but many projects are worth leaving to a professional. Hire a tiler if:
- the area is a shower, bathroom or other wet area
- the floor is uneven, cracked or flexible
- you are using large-format, expensive or delicate tiles
- the tiles need complex cuts around drains, pipes or niches
- you want a high-end finish with straight lines and balanced cuts
- the job involves outdoor paving, balconies or slippery surfaces
- you are trying to fix failing tiles, water damage or movement cracks
A poorly executed tiling job can be expensive to remove and redo, especially once waterproofing or cabinetry is involved.
What a tiler should be able to tell you at quote stage
A reliable tiler will usually ask questions before pricing the work. They may want photos, room measurements, tile type, substrate details and the scope of related work. They should be able to explain:
- what preparation is included
- whether old tiles will be removed
- whether floor levelling or wall linings are needed
- who is responsible for waterproofing
- what grout, adhesive and sealant systems will be used
- how long the job will take
- whether there are additional costs for complex cuts, herringbone patterns or premium materials
For homeowners, this is a good sign. If the quote is vague, the final cost is more likely to change.
How to choose a good tiler in New Zealand
When hiring a tiler, look for more than just the cheapest quote.
- Get at least two or three written quotes
- Ask for photos of recent work
- Check whether they have insurance
- Ask about experience with your tile type and room type
- Confirm who will do the waterproofing and whether it is documented
- Ask what is excluded so there are no surprises
- Check references or recent customer feedback
- Make sure any subcontractors are properly qualified for regulated work
It is also wise to ask how they handle delays caused by weather. In many parts of New Zealand, outdoor tiling and some internal jobs are affected by colder, wetter months, because adhesives and sealants can take longer to cure and substrates may hold moisture.
What affects tiling costs in New Zealand
Tiling prices vary a lot depending on the scope of work. The main cost drivers are usually:
- tile size and type
- complexity of the layout
- floor or wall preparation required
- whether old tiles need removing
- amount of cutting and detailing
- wet-area waterproofing and compliance work
- access and site conditions
- whether the job is indoors or outdoors
As a rough guide, a straightforward tiled area may cost much less than a bathroom renovation with demolition, waterproofing, niche detail and premium porcelain tiles. Labour costs can also vary by region, with some centres and busy renovation periods seeing stronger demand.
The bottom line
A tiler is the specialist who turns a prepared surface into a finished tiled area that looks good and performs properly. They measure, set out, cut, fix, grout and seal tiles, but they also play an important part in checking substrate quality, coordinating with other trades and protecting the long-term durability of the job.
If you are renovating in New Zealand, the best results usually come from treating tiling as part of a bigger system: good substrate preparation, proper waterproofing where needed, the right materials, and a skilled installer. Get multiple written quotes, check experience and credentials, and make sure any related plumbing, electrical or building work is handled by the right qualified people before the tiles go on.
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