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Bathroom Renovation Plumbing

The work Donza is best known for. We handle the plumbing side of a bathroom renovation end to end: drainage set-out and core holes through slab, in-wall cistern and bath rough-ins, laundry and powder-room runs, then back for the fit-off once tiling is done. Accessibility and NDIS bathrooms are part of that work, quoted against the drawings before the room is stripped. We work in with your builder and tiler, and after enough bathrooms together we can also bring trades we already trust.

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What's included

  • Rough-in & fit-off, set out on site
  • In-wall cisterns & freestanding baths
  • NDIS and accessibility set-outs
  • Core holes through suspended slab
  • Works in with your builder & tiler
  • AS/NZS 3500 compliant
Finished bathroom, Lake Munmorah: fluted timber vanity, vessel basin and wall mixer.

Licensed & insured

Every job is carried out by Josh, a licensed plumber and gas fitter (Donza Plumbing Pty Ltd, ABN 51 697 209 153), and certified to AS/NZS 3500 plumbing & AS/NZS 5601 gas.

Gas FittingFully insuredUpfront quotes

Servicing

On the tools

Finished bathroom, Lake Munmorah: fluted timber vanity, vessel basin and wall mixer.
Finished bathroom, Lake Munmorah: fluted timber vanity, vessel basin and wall mixer.
Finished shower, Lake Munmorah: stone-look tile, rain head and linear drain.
Finished shower, Lake Munmorah: stone-look tile, rain head and linear drain.
Finished bath, Lake Munmorah: back-to-wall bath on grey stone tile.
Finished bath, Lake Munmorah: back-to-wall bath on grey stone tile.
Finished bathroom, Gwandalan: timber vanity, freestanding bath and in-wall cistern.
Finished bathroom, Gwandalan: timber vanity, freestanding bath and in-wall cistern.
Vanity, bath and toilet at fit-off, Gwandalan.
Vanity, bath and toilet at fit-off, Gwandalan.
Freestanding bath and black wall spout, Gwandalan.
Freestanding bath and black wall spout, Gwandalan.
Green subway tiled shower, Wyee Point: rain head, niche and linear drain.
Green subway tiled shower, Wyee Point: rain head, niche and linear drain.
Timber vanity, vessel basin and back-to-wall toilet, Wyee Point.
Timber vanity, vessel basin and back-to-wall toilet, Wyee Point.
Freestanding bath against green subway tile, Wyee Point.
Freestanding bath against green subway tile, Wyee Point.
Finished bathroom, Yarramalong: double vanity, vessel basins and freestanding bath.
Finished bathroom, Yarramalong: double vanity, vessel basins and freestanding bath.
Finished bathroom, Newcastle: walk-in shower, grey tile and black tapware.
Finished bathroom, Newcastle: walk-in shower, grey tile and black tapware.
Finished bathroom: vessel basin on a fluted timber vanity, wall mixer and back-to-wall toilet.
Finished bathroom: vessel basin on a fluted timber vanity, wall mixer and back-to-wall toilet.
Brushed nickel rail shower and wall mixer on stone-look tile.
Brushed nickel rail shower and wall mixer on stone-look tile.
Back-to-wall bath, wall spout and a tiled-in linear floor drain.
Back-to-wall bath, wall spout and a tiled-in linear floor drain.
Green subway tiled shower: brushed nickel rail set, tiled niche and linear drain.
Green subway tiled shower: brushed nickel rail set, tiled niche and linear drain.
Vanity basin and brushed tapware going on at fit-off.
Vanity basin and brushed tapware going on at fit-off.
Finished bathroom, Mannering Park: vessel basin, timber vanity, marble tile and glass shower.
Finished bathroom, Mannering Park: vessel basin, timber vanity, marble tile and glass shower.
Bathroom, Summerland Point: green tiled shower, timber vanity and fluted freestanding bath.
Bathroom, Summerland Point: green tiled shower, timber vanity and fluted freestanding bath.
Bathroom, Gwandalan: timber slat wall, black toilet, white bath and black rain shower.
Bathroom, Gwandalan: timber slat wall, black toilet, white bath and black rain shower.
Dual vessel basins and wall mixers, Bonnells Bay.
Dual vessel basins and wall mixers, Bonnells Bay.
Glass shower, black rail and timber-top vanity.
Glass shower, black rail and timber-top vanity.
Bathroom, Gwandalan: timber vanity, in-wall cistern and freestanding bath.
Bathroom, Gwandalan: timber vanity, in-wall cistern and freestanding bath.
Dual vessel basins, timber vanity and freestanding bath.
Dual vessel basins, timber vanity and freestanding bath.
Floating vanity, vessel basin and arched mirror.
Floating vanity, vessel basin and arched mirror.
Bathroom vanity close-up, Mannering Park.
Bathroom vanity close-up, Mannering Park.

How the job runs

What to expect, start to finish.

  1. Scope & set-out

    Site visit against the new layout, fixture positions agreed with your builder and tiler, fixed price in writing.

  2. Rough-in

    Drainage, water and gas runs set with a laser while the room is stripped, core holes drilled where the slab needs them.

  3. Fit-off

    Back after tiling for tapware, toilet, bath and vanity connection, tested and left clean.

  4. Certify

    Work certified to AS/NZS 3500, with the paperwork your builder or certifier needs.

Good to know

Bathroom Renovation Plumbing FAQs

Do you do the whole renovation or just the plumbing?

The plumbing, end to end. Demolition, tiling and cabinetry belong to their trades; our job is everything water and gas touches, from the first drainage set-out to the final tapware fit-off. We work in with the builder and tiler you already have, and if you are starting from scratch we can point you to crews we have finished bathrooms alongside.

Can you move the toilet, shower or vanity to a new spot?

Usually yes, and it is the most common reason a renovation needs a plumber early. Moving fixtures means new drainage falls and sometimes core-drilling through slab, which we scope and price before demolition starts, so there are no surprises once the floor is open.

When should the plumber get involved in a renovation?

Before demolition. The rough-in has to be planned against the new layout, and quoting it off the finished drawings, not mid-demo, is what keeps the price fixed. We do a site visit, agree the set-out with your builder or tiler, rough in once the room is stripped, and come back for fit-off after tiling.

Related services

Hot Water Systems

Install, relocate, repair and replace gas, electric, heat-pump and continuous-flow hot water units, with the old unit taken away.

Gas Fitting & Gas Appliances

Gas leak detection, line installation, cooktop and heater connection, gas hot water and compliance certificates, the work plumbing-only operators can’t legally do.

Blocked Drains & Stormwater

Clearing blocked sinks, toilets and sewers, high-pressure jetting, CCTV camera inspections, tree-root cutting, pipe relining and stormwater drainage.