Choosing between a vanity unit and a pedestal basin is one of the first decisions you'll make when renovating or fitting out a bathroom. Both options have their place, but they suit different spaces, budgets, and lifestyles. Here's a practical breakdown to help you decide what's right for your home.
What Is a Vanity Unit?
A vanity unit combines a basin (sink) with a cabinet or bench top below it. The cabinet provides storage for toiletries, cleaning products, and towels, and the plumbing pipes are neatly hidden inside. Vanities are available in wall-hung (floating) or floor-standing styles, and bench tops can be made from materials like stone, laminate, solid surface, or timber.
Vanities are the most popular choice in New Zealand bathrooms today, particularly in family homes where storage is a priority. They can range from compact 450 mm units for small ensuites right up to wide double-basin configurations for master bathrooms.
What Is a Pedestal Basin?
A pedestal basin is a freestanding basin supported by a ceramic or porcelain column (the pedestal) that sits on the floor. The pedestal conceals the waste pipe and supply lines running down from the basin, giving a clean, classic look. There is no storage built in — what you see is what you get.
Pedestal basins have a timeless, traditional aesthetic and are often found in older NZ homes, period renovations, and compact bathrooms or toilets (WCs) where space is tight and storage isn't the main concern.
Key Differences at a Glance
| Feature | Vanity Unit | Pedestal Basin |
|---|---|---|
| Storage | Yes — cabinet below | None built in |
| Pipe concealment | Fully hidden in cabinet | Hidden by pedestal column |
| Floor space | Larger footprint | Smaller footprint |
| Cleaning | Harder under cabinet | Easy to clean around base |
| Style | Modern, contemporary | Classic, traditional |
| Installation complexity | Moderate to high | Relatively straightforward |
| Cost (as a guide) | Generally higher | Generally lower |
| Bench space | Yes | No |
Plumbing Considerations
Both setups connect to the same basic plumbing: a cold (and usually hot) water supply and a waste outlet to the drain. However, the installation details differ.
- Vanity units often require the supply pipes and waste to be positioned precisely to suit the cabinet layout. Wall-hung vanities need the pipes to come through the wall at the right height, and the cabinet must be securely fixed to wall framing — not just the lining.
- Pedestal basins are typically fixed to the wall through the back of the basin itself, with the pedestal providing additional support. The supply and waste connections are similar but the pedestal limits how much you can adjust pipe positions after the fact.
In both cases, the waste must connect to an approved drainage system that complies with the NZ Building Code, specifically clause G12 (water supplies) and the relevant drainage requirements. In wet areas like bathrooms, waterproofing under and around the basin area must also meet NZ Building Code clause E3.
What Can a Homeowner Do Themselves?
In New Zealand, plumbing work is restricted work under the Plumbers, Gasfitters and Drainlayers Act 2006. This means connecting or modifying water supply pipes, waste pipes, or drainage must be carried out by — or supervised by — a licensed tradesperson registered with the Plumbers, Gasfitters and Drainlayers Board (PGDB).
As a homeowner, you can generally:
- Remove an old basin or vanity (once the water is turned off)
- Assemble flat-pack vanity cabinet components
- Choose and purchase your fixtures
You cannot legally do the final plumbing connections yourself unless you are a licensed plumber. Doing so could void your home insurance and create issues when you sell.
Safety note: Always turn off the water at the isolation valve or tohunga (main stopcock) before disconnecting any basin. Have a bucket and towels ready — there will be water in the pipes.
Which Option Suits Your Bathroom?
Choose a vanity if:
- You need storage and bench space
- You have a family bathroom or ensuite
- You want a modern, streamlined look
- You're doing a full renovation and can position pipes to suit
Choose a pedestal basin if:
- You have a small toilet or WC with limited floor space
- You prefer a classic or heritage aesthetic
- Budget is a key factor
- You're doing a like-for-like replacement and the existing pipe positions suit a pedestal
Costs to Consider
As a rough guide only, pedestal basins tend to be the more affordable option upfront, while vanity units cost more due to the cabinetry and bench top. Labour costs for a licensed plumber will vary depending on your location, the complexity of the job, and whether any pipe repositioning is needed. Always get at least two or three quotes.
For product inspiration and pricing, Bunnings and Mitre 10 both carry a range of vanities and pedestal basins, and specialist bathroom suppliers often have a wider selection of styles and sizes.
When to Call a Professional
Any time you're connecting or modifying water supply or waste pipes, you need a licensed plumber. This includes:
- Installing a new vanity or pedestal basin from scratch
- Relocating pipes to suit a new layout
- Replacing an existing basin with a different style that requires pipe changes
If your renovation also involves tiling or waterproofing, BRANZ has excellent guidance on best practice for wet area construction. For structural fixing of wall-hung vanities, a Licensed Building Practitioner (LBP) may also be needed if work involves structural elements.
You can find qualified local plumbers and bathroom specialists on tradedirectory.co.nz — always check they hold a current PGDB licence before work begins.