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 70+ Google reviews
Blockhouse Bay bathroom services
Bathrooms for Bigger Blockhouse Bay Households
Larger homes need more from their bathrooms. These are the four jobs we plan most carefully in a family house.

Ensuite
Ensuites Off the Main Bedroom
Many larger Blockhouse Bay homes have an ensuite that dates from when the house was built. We strip it out and rebuild it with a walk-in shower, a wall-hung vanity and a fan ducted outside, on its own or alongside the main bathroom.

Second bathroom
A Second Bathroom for a Big Household
If the house has one bathroom and five people, a second bathroom changes the morning. We look at spare rooms, wide hallways and under-stair space for a spot that can reach the drains, then price the build as one job.

Family bathroom
Family Bathrooms With Twin Vanities
Two basins side by side cut the queue at the mirror. Each basin gets its own waste and water supply, and we pair the twin vanity with a bath for younger children or a walk-in shower for teenagers and adults.

Toilet
Separate Toilets
A separate toilet next to the bathroom lets one person shower while another uses the toilet. We renovate it alongside the bathroom so both rooms match.
Blockhouse Bay bathroom prices
Bathroom Renovation Costs in Blockhouse Bay
Bigger houses often mean bigger bathrooms. Use these bands as a guide, and plan on the written quote Nick sends after the visit.
$15,000 to $28,000
Ensuite or small bathroom, layout unchanged
$22,000 to $40,000
Main family bathroom, full rebuild
$40,000 to $65,000+
Large bathroom, twin vanity or freestanding bath
Doing the ensuite and the main bathroom together usually costs less than two separate jobs. The strip-out, the skip bin and the plumber's and tiler's visits are shared across both rooms.
What changes the price
What Changes a Blockhouse Bay Bathroom Price
Each item below is a separate line on quotes from Alchemy's bathroom renovators working across Auckland, so you can see what each choice adds.
Number of rooms
Two bathrooms on one programme share the strip-out and the trades.
Twin vanity
A second basin adds a waste, a supply and a tap.
Room size
A larger floor and taller walls mean more tiles and more waterproofing.
Walk-in or tray
A tiled walk-in shower takes more labour than a tray and enclosure.
Heated extras
Underfloor heating and a heated towel rail each add an electrician's line.
Recent work in central Auckland
A Character Home Bathroom in Mount Eden
Our Mount Eden job rebuilt the bathroom of an older house with sash windows. It has a walk-in shower one step up from the floor, with a square grate drain and a niche set into white tiles, beside a white clawfoot bath.
An oak-look vanity with a vessel basin and a round backlit mirror sits on another wall. The walk-in shower and clawfoot bath in Mount Eden page has more photos and a video.

Blockhouse Bay at the 2023 Census
Big Family Homes in Blockhouse Bay
The five Blockhouse Bay census areas held 13,110 residents in 4,122 occupied homes at the 2023 Census.
38.7%
of Blockhouse Bay homes had four or more bedrooms
13.4%
of homes had five or more bedrooms
21.3%
of homes were damp, with 19.3% reporting mould larger than an A4 sheet
Blockhouse Bay East and South have the largest homes, with 47.1% and 45.7% of homes at four bedrooms or more. Those are the houses where a second bathroom or an ensuite makes the most difference.
Damp is spread fairly evenly across the suburb, from 20.2% in Blockhouse Bay North to 23.9% in the North East. Building Code clause E3 expects wet areas to have impervious, easy-to-clean surfaces and enough ventilation to limit moisture, and every bathroom we build has tiled wet areas over a waterproofing membrane and a fan ducted outside.
Google reviews
What Alchemy Clients Say About Their Renovations

We chose Alchemy Bathrooms for our project based on feedback on the “No Cowboys” website and were not disappointed. 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. We will definitely use Alchemy Bathrooms again for any future project.
When we asked Nick for a quote, he came across as incredibly professional and had some amazing ideas. He delivered on time, just as he promised. But it wasn't just the timely work that impressed us. Nick's communication was outstanding, from start to finish. He made the whole process feel effortless, and we felt confident in trusting him and his team. Speaking of his team, they were skilled, respectful, and their attention to detail was second to none.
Blockhouse Bay bathroom questions
Bathroom Renovation FAQs for Blockhouse Bay
Alchemy bathrooms cost $15,000 to $65,000 or more. An ensuite in its current layout starts at $15,000, a main family bathroom runs $22,000 to $40,000, and a large bathroom with a twin vanity or freestanding bath starts at $40,000.
Plan a Blockhouse Bay Bathroom With Nick
Send the form below or ring 09 884 6535 for a free site visit. If you want two bathrooms done, Nick will price both on one quote.
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.
All of Auckland
North Shore, West, East, South and Central Auckland.
Mon to Fri, 8am to 5pm
Monday to Friday, 8:00am to 5:00pm. Free site visits across Auckland.
