Why published rates are not much use
Search for a square metre rate and you will find plenty of numbers. They are averages across wildly different jobs, they age quickly, and they almost never state what they include. A rate that excludes removal, levelling, waterproofing and trims is not comparable to one that includes them, and the difference between those two figures is most of the cost of a bathroom. The useful approach is not to find a benchmark rate. It is to understand the ten things that move the price, so that when three quotes come back you can see why they differ and which one is actually pricing your job properly.The ten things that drive the price
1. Area, and the shape of it
Square metres are the starting point but not the whole story. A large open floor is faster per square metre than a small bathroom of the same total area, because the small bathroom is mostly edges, corners and penetrations. A room with a shower recess, a hob, a vanity, a toilet and a floor waste has a great many cuts in a small space.2. Tile size and format
Large format tiles cover ground quickly but are heavier, harder to handle, need a flatter substrate and waste more material per cut. Small format and mosaic tiles are slower per square metre because there are far more units to place and more grout to finish. Neither is straightforwardly cheaper. They are different work. Rectified tiles, which are cut to a precise size after firing, allow narrow joints. Narrow joints look sharper and are less forgiving, because any variation in the substrate shows. That precision takes longer.3. What the tile is made of
Porcelain is dense and harder to cut than ceramic. Natural stone is heavier, more variable, often needs sealing before and after grouting, and may need to be laid with more care because the material itself varies piece to piece. Glass and some mosaics need particular adhesives and techniques. The material affects both the time and the consumables.4. The condition of the substrate
This is the single largest source of variation between quotes, and the one most often left out of the cheap one. Tile needs a sound, flat, correctly prepared surface. If the floor is out of level, or the walls are out of plumb, or the existing substrate is damaged, that has to be corrected before tiling starts. In older Sydney homes it frequently does. A quote that has not allowed for any preparation is either based on an inspection that confirmed none is needed, or it is a variation waiting to happen. Ask which.5. Layout and pattern
A straight grid is the baseline. A brick or offset bond is slightly more. Diagonal, herringbone, chevron and basketweave layouts all involve more cuts, more setting out and more waste. Feature panels, borders and mixed formats in the same room add time. Mitred external corners, where two tiles are cut at 45 degrees to meet without a trim, are slow and skilled work.6. Cuts and penetrations
Every tap, every waste, every power point, every niche and every corner is a cut. Circular cuts for tapware are slower than straight cuts. A bathroom wall with a shower mixer, a shower outlet, a niche and a towel rail has a lot happening in a small area.7. Walls, floors and height
Wall tiling is generally slower than floor tiling because each tile has to be supported while the adhesive grabs. Tiling to ceiling height costs more than tiling to a lower set height, both in material and in labour, and anything above standard reach needs access equipment.8. Removing what is already there
Stripping existing tile, removing the bed underneath it, and disposing of the waste are real work and real cost. Tile is heavy and skip hire is priced by weight as well as volume. Some quotes include demolition and disposal and some do not. This is one of the most common reasons two quotes look different.9. Waterproofing
Waterproofing is a separate trade and a separate cost from tiling. In New South Wales, waterproofing of wet areas is specialist work under the Home Building Act 1989 and requires the appropriate licence or certificate, and the work must comply with AS 3740, the Australian Standard for waterproofing of domestic wet areas, called up through the National Construction Code. Check whether a tiling quote includes waterproofing or assumes someone else is doing it. If it includes it, ask who is doing the waterproofing and confirm they hold the licence for it. A general builder’s licence does not automatically cover waterproofing.10. Access and site conditions
Getting a pallet of tile to a third floor apartment is not the same as unloading it into a garage. Stairs, lift bookings, restricted parking, narrow access, limited work hours in strata buildings and distance from the loading point all add time. So does working in an occupied home where the site has to be protected and cleaned daily.What a quote should itemise
A quote you can actually compare separates the work rather than giving one number. Look for these lines, and where one is missing, ask whether it is excluded or assumed.| Line item | What to check |
| Removal and disposal | Is existing tile removal included, and does that include the bed and the waste removal? |
| Substrate preparation | Has the floor been checked for level and the walls for plumb, and is levelling allowed for? |
| Waterproofing | Included or excluded? If included, who holds the licence for it? |
| Tiling labour | Floor and wall priced separately, with the layout named |
| Consumables | Adhesive, grout, sealant and trims. Specified or provisional? |
| Sealing | Required for natural stone. Before grouting, after, or both? |
| Trims and edges | Metal trim, mitred corners or neither. This changes both look and price |
| Silicone and finishing | Movement joints and wall to floor junctions |
| Site protection and clean | Particularly relevant in an occupied home or an apartment |
| Exclusions and assumptions | The most important section of any quote. Read it first |
How to get quotes you can actually compare
- Choose your tile first. A quote is only meaningful once the tiler knows the format, the material and the quantity, because all three change the labour.
- Settle the layout before you ask. Straight grid, offset, herringbone. Do not leave it open and then compare prices.
- Give every tiler the same written scope, including the areas, the heights, what is being removed and who is doing the waterproofing.
- Ask each of them to inspect the site rather than quote from photographs, particularly for floor level and substrate condition.
- Ask for the exclusions in writing. Compare the exclusions before you compare the totals.
- Check the licence. Residential building work over $5,000 in New South Wales requires a licensed contractor, and licences can be checked through the NSW Government.
- Get it in writing. Residential building work over $5,000 requires a written contract, and the contractor must give you the Consumer Building Guide before you sign.
Where the cost goes up after the quote
Variations are normal. Unexpected variations are usually one of these.- Substrate problems found at strip out. The most common. Nothing can be quoted with certainty until the old tile is off.
- Running short of tile. Ordering the measured area without a wastage allowance. Cuts, breakages and pattern matching all consume tile, and large format and diagonal layouts consume more.
- A change of layout mid-job. Switching to herringbone after the quote is a different job.
- Set-out surprises. A fixture that does not fit because tile thickness was not accounted for at rough-in.
- Sealing not allowed for. Natural stone usually needs sealing and it is sometimes assumed rather than quoted.
Your rights if something goes wrong
Residential building work in New South Wales is regulated under the Home Building Act 1989. Contractors carrying out residential building work valued at more than $5,000 must be licensed, and for plumbing, drainage and gasfitting a licence is required regardless of the value of the work. Written contracts are required for work over $5,000, and the contractor must give you the Consumer Building Guide before you sign. Where the work is worth more than $20,000 including labour and materials, home building compensation cover is required. It is regulated by the State Insurance Regulatory Authority, and the contractor must give you evidence of that cover before they start work or before you pay them. Consumer guarantees under the Australian Consumer Law also apply to the goods you buy, separately from any workmanship issue with the installation.Frequently asked questions
Ten main things: the area and its shape, the tile size and format, the tile material, the condition of the substrate, the layout and pattern, the number of cuts and penetrations, whether you are tiling walls as well as floors and to what height, whether existing tile is being removed and disposed of, whether waterproofing is included, and the site access. Substrate condition and removal are the two most common reasons two quotes differ.
Usually because they are pricing different scopes rather than different rates. One quote includes removal and disposal and another does not. One has allowed for levelling the floor and another assumes it is flat. One includes waterproofing and another assumes a separate trade. Compare the exclusions before comparing the totals.
Not straightforwardly. Large format covers ground faster but is heavier to handle, needs a flatter substrate, wastes more material per cut and often needs two people. Small format and mosaic are slower per square metre because there are more units to place and more grout to finish. They are different work rather than one being cheaper.
Sometimes, and you have to ask. Waterproofing is a separate trade. In New South Wales it is specialist work under the Home Building Act 1989 requiring the appropriate licence or certificate, and a general builder licence does not automatically cover it. If a quote includes waterproofing, confirm who is performing it and that they hold the licence.
More than your measured area, to cover cuts, breakages, pattern matching and spares kept for later repairs. The allowance depends on the layout, since diagonal and herringbone patterns and large format tiles generate more offcuts than a straight grid. Your tiler sets the figure because they are setting out the tile. Order the full quantity in one batch, because shade can vary between production runs.
Yes, for residential building work over $5,000, and the contractor must give you a copy of the Consumer Building Guide before you sign. Where the work is worth more than $20,000 including labour and materials, home building compensation cover is required and evidence of it must be provided before work starts or before payment.
Start with the tile
Every quote gets more accurate once the tile is chosen, because format, material and quantity all change the labour. Bring your measurements to the showroom at Smithfield, open seven days, and we will help you settle the tile and confirm what is available in the quantity you need.
We will give you the specification sheets your tiler will want and put a written quote together for the materials, so you can hand your tilers a scope they can all price the same way. Book an appointment for a design consultation, or send through your dimensions to get started.









