Replacing a bathroom vanity is one of the quickest ways to refresh a NZ bathroom without a full renovation. Here's what bathroom vanity installation costs in NZ in 2026, what options are available, and what trades you need.
Bathroom Vanity Installation Cost NZ 2026
| Service | Typical cost |
|---|---|
| Plumber fit-off — swap like-for-like vanity | $200–$450 |
| Plumber fit-off — new vanity with minor pipe modification | $350–$750 |
| Plumber fit-off — new location (move waste/supply pipes) | $800–$2,500 |
| Vanity unit supply (basic, 600mm) | $300–$600 |
| Vanity unit supply (mid-range, 750–900mm) | $600–$1,500 |
| Vanity unit supply (premium, 1200–1500mm) | $1,500–$5,000+ |
| Basin tap (supply + plumber fit) | $200–$800 |
| Mirror/shaving cabinet (supply + install) | $150–$600 |
Typical total cost (supply + installation):
| Scenario | Total cost |
|---|---|
| Budget swap (same position, basic vanity) | $600–$1,200 |
| Mid-range vanity replacement | $1,000–$2,500 |
| Premium vanity + tap + mirror | $2,500–$6,000 |
| New vanity in new position | $2,000–$5,500 |
All prices GST inclusive. Auckland 15–20% above.
Vanity Types
Freestanding Vanity (Cabinet with Legs or Kickboard)
The most common NZ bathroom vanity style — a cabinet sitting on legs or a kickboard, with an integrated basin on top. Available in hundreds of styles from trade suppliers and bathroom retailers.
Advantages: Wide variety, relatively easy installation, hides plumbing in the cabinet.
Cabinet materials: MDF (moisture-resistant or standard), PVC (fully waterproof), solid timber (higher end). In a high-moisture bathroom, moisture-resistant board or PVC is essential — standard MDF will swell over time.
Wall-Hung (Floating) Vanity
Fixed to the wall with no legs — the space below is open, making the bathroom feel larger and easier to clean underneath.
Additional installation note: Requires solid wall blocking or a structural wall to attach to. Plasterboard alone will not hold the weight of a vanity + user. If blocking isn't already in the wall, a builder may need to open the wall to install it (adds $300–$700).
Weight capacity: Check the weight rating of the vanity and the wall fixing — a full vanity unit can weigh 40–80kg.
Undermount vs Top-Mount Basin
- Integrated / drop-in: Basin sits in or on the vanity top — the most common NZ style.
- Counter-top basin: A vessel basin sitting on top of the counter. Stylish but harder to clean around the base; tap placement is awkward if not designed for this.
- Undermount: Basin fixed under the counter top — clean edge, easy to wipe water off the surface. Requires a solid surface countertop (stone, corian, timber).
Vanity Top Materials
- Ceramic/porcelain integrated top: Durable, stain resistant, standard in budget-mid range.
- Stone (marble/granite/engineered stone): Premium look, heavy, may need extra wall support. Requires sealed maintenance.
- Timber: Warm aesthetic, requires sealing, needs ventilation to prevent warping in humid bathrooms.
- Polymarble: Moulded polyester resin — affordable, seamless (no join to leak), not as premium-looking.
What Does a Plumber Do for Vanity Installation?
A licensed plumber is required for: - Connecting the water supply to the new tap - Connecting the waste pipe to the new basin - Any modification to supply or waste pipe locations
Like-for-like swap: If the new vanity is the same size and same plumbing positions, installation is straightforward — a few hours of plumber time ($200–$450).
Minor modification: Pipes slightly different positions, or a different tap hole arrangement — a bit more pipe work but still manageable in a day ($350–$750).
New location: Moving the vanity to a different wall or position requires the drainlayer (for waste pipe) and plumber (water supply). This is a much bigger job — $800–$2,500 for plumbing alone.
Can I Install a Vanity Myself?
Cabinet installation: DIY-able — wall-hung vanities require accurate wall fixing (right studs or solid backing), but freestanding vanities just sit on the floor.
Plumbing connections: In NZ, licensed plumbers must connect water supply and waste — you cannot legally do this yourself (Plumbers, Gasfitters and Drainlayers Act 2006). The tap and waste fittings must be connected by a licenced plumber.
Exception: Replacing a tap on an existing connection (connecting flex hoses to existing isolating valves) is sometimes considered maintenance-level work, but to be safe, check with a plumber.
Buying a Vanity in NZ
Where to buy: - Tile suppliers and bathroom showrooms: Wide range, often trade-discounted. Bring your measurements. - Plumbing merchants (Mico, Reece): Quality product, plumber can order for you. - Hardware stores (Mitre 10, Placemakers, Bunnings): Budget to mid-range. Good for a quick supply. - Online: Trademe, Bathroom Butler, Häfele NZ. Check lead times — some vanities ship from overseas (4–10 weeks).
Measure before you buy: - Available width (between walls or existing fittings) - Depth (standard vanities are 450–500mm deep — check clearance from door/shower) - Height (standard 850mm, but 900mm height is increasingly preferred — check what suits the household) - Tap hole position — must match your tap or you'll need to drill
Find bathroom plumbers near you: Plumbers NZ | Bathroom Renovators NZ | Post Your Job Free
Frequently Asked Questions
How much does it cost to install a bathroom vanity in NZ? A like-for-like replacement (plumber fit only): $200–$450. Total project cost including a mid-range vanity and plumber: $1,000–$2,500. A premium custom vanity with stone top and premium tap, fully installed: $3,000–$7,000.
Do I need a plumber to install a vanity in NZ? Yes — water supply and waste connections must be made by a licensed plumber. Cabinet assembly and positioning can be DIY, but the plumbing connections require a licensed tradesperson.
How long does vanity installation take? A like-for-like swap: 2–4 hours of plumber time. A new vanity in the same position (minor pipe modification): half a day. A completely new position (pipe relocation): 1–2 days.
How wide should a bathroom vanity be? Standard NZ bathroom vanity widths: 600mm (compact/ensuite), 750–900mm (standard), 1200–1500mm (double or main bathroom). Measure your available space, then leave 50–100mm clearance from walls for adjacent fittings.
What is the best material for a bathroom vanity in NZ? For durability in NZ humidity: PVC cabinet (waterproof, won't swell), ceramic or stone top (stain and water resistant), quality waste and tap fittings. Avoid standard MDF without moisture-resistant treatment. Ventilation behind and around the cabinet helps prevent mould regardless of material.
Related: Bathroom Renovation Cost NZ | Shower Installation Cost NZ | Plumbers NZ