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Auckland bathroom renovations by a Licensed Building Practitioner. 15-year waterproofing guarantee.
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Villa Bathroom Renovations in Auckland

Alchemy Bathroom Renovations Auckland renovates villa bathrooms in Auckland character homes, from main bathrooms and ensuites to separate toilets and laundries. The work covers the parts a villa hides, including levelling and re-sheeting the timber floor, replacing old galvanised pipe and building tiled showers over timber. Nick McKelvie leads each job as a Licensed Building Practitioner (BP1021390) and a registered producer statement author for waterproofing (PSA127420), and his team has spent 30 years renovating bathrooms across Auckland, more than 1,200 of them.

Villas in Ponsonby, Grey Lynn, Devonport and Mt Eden were built with high ceilings, sash windows and timber floors on piles. Nick keeps the features you want to keep and replaces what a century of moisture has damaged underneath them. The floor and the pipes are rebuilt first, so the new bathroom sits on sound timber. Every villa bathroom starts with a free site visit, and the written quote that follows lists every trade and every fixture.

View through an open hallway door into a renovated small bathroom inside an Auckland weatherboard villa with new white tiles.

15 Years

Waterproofing guarantee

BP1021390

Licensed Building Practitioner

PSA127420

Producer statement author

30 Years

Renovating Auckland bathrooms

1,200+

Bathrooms completed in Auckland

4.7 ★

From 71 Google reviews

Villa bathroom services

Villa Bathroom Renovation Work We Do in Auckland

Six parts of a villa bathroom job. Most villas need several of them at once.

custom tiled shower in ponsonby
Villa work 01

Full Villa Bathroom Renovation

We renovate villa bathrooms in the room they already occupy, which keeps the waste and the window where the house expects them.

The room comes back to the framing, the floor is levelled, and a new waterproofing membrane, shower, vanity and ducted extractor go in.

Tell us if the bathroom was altered between the 1950s and the 1980s. Relined walls from that period may need testing for asbestos.

A tradesperson drills a vanity bracket into cement-sheet substrate inside a partially renovated Auckland bathroom.
Villa work 02

Floor Levelling and New Subfloor

An Auckland villa floor that bounces or slopes gets levelled and re-sheeted by us before anything else, because tiles and a waterproofing membrane crack on a moving floor.

Rotten joists are replaced, the floor is packed level and re-sheeted, and the subfloor is checked for ventilation.

Changes to joists or piles are restricted building work, done or supervised by Nick as a Licensed Building Practitioner.

bathroom shower
Villa work 03

Tiled Showers on Timber Floors

Our tiled showers on villa timber floors get their fall built into the framing, so the waterproofing membrane sits on a floor that already drains.

A tiled wet-area shower needs a building consent in Auckland, and Nick issues the PS3 for the waterproofing.

Ask about a level-entry shower if you want the hallway and the bathroom floor to meet flush.

Hands fitting a brushed nickel thermostatic smart shower valve into a grey stone-look tiled wall recess.
Villa work 04

Old Pipework Replacement

Old galvanised pipe in an Auckland villa rusts from the inside, and we replace it back to a sound connection during the strip-out.

Low flow and brown water at the first tap in the morning are the usual signs. Doing the work now means no new tiled wall gets opened later.

Tell us if the house still has a low-pressure hot water cylinder in the ceiling.

A tradesperson reviews plans inside a renovated ensuite of an Auckland weatherboard home viewed through an open exterior doorway.
Villa work 05

Keeping Villa Character Features

Keeping the high ceiling, the sash window and the deep skirtings is part of every villa bathroom we plan, and the new work fits around them.

A tall room needs a larger extractor to move the same steam, and a sash window near the shower needs a sill that sheds water.

Tell us if the house sits in the Special Character Areas overlay before any window or exterior change is planned.

Completed laundry room renovation in Auckland showing white cabinetry, undermount sink, and stacked appliances in a tiled space.
Villa work 06

Villa Toilets and Laundries

Villa toilets and back-porch laundries get renovated by us alongside the bathroom or on their own.

A laundry floor gets a waterproofing membrane and a floor waste, so a burst hose drains away. A separate toilet often needs the same floor work as the bathroom next to it.

Recent work includes a Ponsonby villa with a bathroom, two toilets and a laundry with a custom tiled shower.

What happens when you call

How a Villa Bathroom Renovation Runs With Alchemy

Five steps, with the floor and pipes rebuilt before anything new goes in.

Step 01

Free Villa Bathroom Site Visit

Nick measures the bathroom, checks the floor for bounce and slope, looks at the pipework he can see, and notes the ceiling height and windows. No charge and no obligation.

Step 02

Written Quote and Layout

The quote lists every trade, every fixture and the build order. Where the layout changes, the measured plan is settled at this step.

Step 03

Strip-Out, New Floor and Pipework

The room comes back to the framing. The floor is levelled or re-sheeted, rotten joists are replaced and old galvanised pipe is swapped for new.

Step 04

Waterproofing Membrane, Then Fit-Out

The waterproofing membrane goes on and cures, then the tiles, vanity, shower, toilet and extractor go in. On a consented job Nick issues the PS3.

Step 05

Villa Bathroom Handover

You walk the finished bathroom with Nick and every fixture is run. The waterproofing carries Alchemy's 15-year guarantee from handover.

Free, no-obligation site visit

Book a Free Bathroom Site Visit in Auckland

Nick comes to the bathroom, talks through the layout with you, and sends a written quote that lists every trade and every fixture. No obligation. Monday to Friday, 8am to 5pm.

Published villa bathroom pricing

Villa Bathroom Renovation Cost in Auckland

$22,000 to $35,000

That is what a villa bathroom renovated in its existing room costs with Alchemy, including floor levelling and new pipework.

A villa bathroom costs more than a newer bathroom of the same size, because the floor, the pipes and the walls usually need rebuilding before the new work starts.

These ranges are a starting point for your budget. Nick puts a fixed figure on your villa bathroom in writing after the site visit.

Villa job Range What sits in it
Villa bathroom, same room and layout$22,000 to $35,000Floor levelling and re-sheet, new pipework, waterproofing membrane, shower, vanity, toilet and ducted extractor
Villa bathroom with a new layout$30,000 to $45,000Everything above plus new drainage under the floor, a relocated shower or toilet and consent inspections
Villa bathroom with character finishes$45,000 to $65,000+Freestanding bath, underfloor heating, heritage-style tapware, stone or large-format porcelain
Villa toilet or laundryQuoted per jobPriced on the floor work, the plumbing run and whether a shower goes in
Before you ask for a villa bathroom quote

What Moves the Price of a Villa Bathroom

Villas vary more than newer homes. These five things set where yours lands.

01

Floor condition

A floor that only needs packing and a new sheet is a small part of the job. Rotten joists and piles add framing work before the bathroom starts.

02

The pipework

Galvanised pipe that runs beyond the bathroom walls adds plumbing time and access work under the house.

03

Moving fixtures

New drainage for a relocated shower or toilet runs under the floor, so subfloor access sets the time it takes.

04

Asbestos in old linings

A suspect lining is tested first. Removing more than 10 m² of non-friable asbestos needs a licensed removalist.

05

Ceiling height and finishes

High villa ceilings mean more wall to tile and a bigger extractor. Heritage-style tapware and stone move a job up the range.

Why villa owners call Alchemy

Why Auckland Villa Owners Choose Alchemy for the Bathroom

A villa bathroom fails at the floor and the pipes first. These six things deal with both.

Reason 01

An LBP for the floor under the bathroom

Nick McKelvie holds LBP number BP1021390. Replacing villa joists or piles is restricted building work, and he does it or supervises it.

Reason 02

A PS3 for waterproofing over timber

Nick is a registered producer statement author, PSA127420. On a consented villa bathroom he issues the PS3 for the waterproofing laid over the timber floor.

Reason 03

15 years on the waterproofing membrane

Alchemy guarantees the waterproofing membrane for 15 years from handover, on a floor that has been levelled and re-sheeted first.

Reason 04

Extractors sized for high ceilings

Every extractor Alchemy fits is ducted to open air and sized for the room, and a villa bathroom has more air to move than most.

Reason 05

Hidden damage priced before it is replaced

The strip-out in a villa can uncover rot or old pipe the site visit could not see. You get the price for that work and approve it before it goes ahead.

Reason 06

4.7 stars from 71 Google reviews

The reviews are public and named. Tamás had 2 bathrooms, a toilet and a washroom renovated by Nick and his team.

vanity ponsonby
Homes reported damp, 2023 Census

24.6%

Grey Lynn West

Homes reported damp, 2023 Census

2.2%

Hobsonville Point Catalina Bay

What sits under a villa bathroom

Damp, Asbestos and Timber Floors in Auckland Villas

Villa suburbs carry more damp than new ones. At the 2023 Census, 24.6% of occupied homes in Grey Lynn West and 23% in Ponsonby West reported being damp always or sometimes, against 2.2% in Hobsonville Point Catalina Bay. In a villa bathroom, moisture from the shower and moisture from under the floor meet in the same timber, so Nick checks the subfloor ventilation along with the room.

A villa bathroom relined between the 1950s and the 1980s can have asbestos in the wall sheet or the vinyl. WorkSafe's asbestos licensing rules allow up to 10 m² of non-friable asbestos to be removed without a licence over the whole project, with controls in place. More than that needs a Class B licence, and any friable asbestos needs a Class A licence. A suspect lining is tested before the strip-out starts.

Timber floors move with the seasons. Tiles in a villa go down over a new sheet floor fixed to the joists, with movement joints at the walls, because grout cracks where a floor flexes.

From the Google Business Profile

Reviews From Auckland Villa and Bathroom Clients

Google
★★★★★
4.7 out of 5 from 71 Google reviews

Steve Mcafferty

2018

★★★★★
✓ Google review

outstanding crew and project managers by nik the director who was always attentive
lots of problem solving which was made all the easier from the fact that they are a LBP master builder
the job finished on time and only slightly over quote due to a difficult room rebuild

Roger Mills

2024

★★★★★
✓ Google review

We liked Nick’s approach of starting with a site meeting to discuss our goals and the practicalities of the project. Nick was great at problem solving and communication. There was a significant delay with council inspections, but once they were done the work proceeded with great pace and the end result has been superb.

Tamás Balogh

August 2026

★★★★★
✓ Google review

We worked with Nick on 2 bathrooms, a toilet and washroom renovation. All was great, on time, on quality, on budget. Very pleasant experience.

Before you book the site visit

Villa Bathroom Renovation FAQs

From $22,000 for a villa bathroom renovated in its existing room, including floor levelling and new pipework, up to $65,000 or more with a freestanding bath and underfloor heating. A villa bathroom with a new layout sits at $30,000 to $45,000, and villa toilets and laundries are quoted per job.

Talk to Nick About Your Villa Bathroom

One phone call books the free site visit. Nick checks the floor, the pipes and the room with you, and sends a written quote that lists every trade and every fixture.

Hours

Monday to Friday, 8:00am to 5:00pm

Address

Suite 7646, 17B Farnham Street, Parnell, Auckland 1052

Service area

All of Auckland: North Shore, West, East, South and Central

Free, no-obligation site visit

Book a Free Bathroom Site Visit in Auckland

Nick comes to the bathroom, talks through the layout with you, and sends a written quote that lists every trade and every fixture. No obligation. Monday to Friday, 8am to 5pm.

Written quote before any work starts  ·  One team from strip-out to handover  ·  15-year waterproofing guarantee

Contact Alchemy

Alchemy Bathroom Renovations Auckland

Led by Nick McKelvie, Licensed Building Practitioner BP1021390 and producer statement author PSA127420. Complete bathroom, ensuite, small bathroom, villa, laundry and commercial renovations across Auckland, with a 15-year guarantee on the waterproofing.

Hours

Mon to Fri, 8am to 5pm

Monday to Friday, 8:00am to 5:00pm. Free site visits across Auckland.

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