When hiring a tiler in New Zealand, understanding the difference between a quote and a fixed-price contract can save you from unexpected costs and disputes. In short, a quote is an estimate of what the work is likely to cost, while a fixed-price contract is a legally binding agreement that sets the final price — no surprises.
What Is a Tiler's Quote?
A quote (sometimes called an estimate) is a written or verbal price a tiler provides after assessing your job. It is based on the information available at the time — the size of the area, the type of tiles, the substrate condition, and the complexity of the layout.
Importantly, a quote is not always a guaranteed price. If the tiler discovers unexpected problems once work begins — such as a damaged or uneven substrate, hidden moisture, or extra preparation work — they may charge more than the original figure. This is especially common in older NZ homes where subfloor or wall conditions can be unpredictable.
Key features of a quote:
- Based on visible information at the time of inspection
- May change if site conditions differ from what was expected
- Can be verbal, but always ask for it in writing
- Does not always include materials unless specifically stated
What Is a Fixed-Price Contract?
A fixed-price contract (also called a lump-sum contract) is a formal written agreement where the tiler commits to completing the specified work for a set price, regardless of how long it takes them. Once signed, neither party can unilaterally change the price without a written variation.
Fixed-price contracts give you much greater certainty over your budget. They are particularly useful for larger tiling projects — such as a full bathroom renovation, kitchen splashback, or outdoor tiled area — where costs can escalate quickly.
Key features of a fixed-price contract:
- Price is locked in for the agreed scope of work
- Any changes to the scope must be agreed in writing as a variation
- Protects both the homeowner and the tradesperson
- Should clearly list inclusions and exclusions (e.g., tile supply, waterproofing, waste disposal)
- May include a payment schedule tied to project milestones
Why the Difference Matters in NZ
In New Zealand, consumer protection for building and trade work is guided by the Consumer Guarantees Act and the Fair Trading Act. These laws require tradespeople to be upfront about pricing and not mislead you. However, they do not automatically turn a quote into a fixed price — which is why getting everything in writing matters.
For tiling work that forms part of a larger building project, MBIE Building Performance provides guidance on contracts and your rights as a homeowner. If your tiling project requires a building consent (for example, structural changes or certain wet area work), make sure your contract references the consented plans.
What Should a Good Tiling Contract Include?
Whether you receive a quote or a fixed-price contract, ask your tiler to confirm the following in writing:
| Item | Why It Matters |
|---|---|
| Scope of work | Defines exactly what is and isn't included |
| Tile supply | Are tiles included or supplied by you? |
| Substrate preparation | Who is responsible if extra prep is needed? |
| Waterproofing | Critical in wet areas — must meet NZ Building Code clause E3 |
| Grout and adhesive type | Affects durability and suitability for the area |
| Timeline and milestones | Sets expectations for start and completion |
| Payment terms | Deposit, progress payments, final payment |
| Variation process | How changes to scope are handled and priced |
| Warranty | What the tiler guarantees on their workmanship |
For wet areas like bathrooms and showers, waterproofing must comply with NZ Building Code clause E3 (Internal Moisture). A reputable tiler will use products from trusted NZ suppliers — adhesives and waterproofing membranes from brands such as Ardex, Mapei, or Sika are commonly specified on NZ projects.
Variations: When the Price Changes
Even with a fixed-price contract, the final cost can change if the scope of work changes. This is called a variation. Common reasons for variations in tiling work include:
- Discovering a damaged or soft subfloor once tiles are lifted
- Changing your tile selection to a larger or more expensive format
- Adding extra areas to be tiled
- Unforeseen waterproofing requirements
Always insist that variations are agreed and signed before the extra work begins. A reputable tiler will stop and discuss the issue with you rather than simply proceeding and adding it to the final invoice.
Tips for Protecting Yourself
- Get at least two or three written quotes so you can compare scope and price fairly
- Ask whether the quote includes GST — all NZ pricing should be GST-inclusive or clearly state otherwise
- Confirm whether tiles and materials are included or if you are supplying them
- Never pay the full amount upfront — a reasonable deposit (typically 10–20%) is standard
- Keep copies of all written agreements, variations, and receipts
- Check that your tiler holds appropriate trade insurance
When to Call a Professional
Tiling in wet areas such as bathrooms, showers, and laundries involves waterproofing work that must meet the NZ Building Code. While tiling itself is not legally restricted work in the same way as electrical or plumbing, poor installation can lead to costly moisture damage. For peace of mind — and to protect your home — always hire an experienced, qualified tiler for anything beyond simple DIY repairs. You can find trusted local tilers on tradedirectory.co.nz.
For any plumbing connections within a tiled bathroom or kitchen, remember that plumbing work is restricted and must be carried out by a licensed tradesperson registered with the Plumbers, Gasfitters and Drainlayers Board.
Site Safe
SiteWise
BCITO Qualified
