Unitex Building Group
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Bathroom Renovations

Bathroom renovations in Melbourne, done properly from the waterproofing up

From a tired ensuite to a full family bathroom, we strip it back, fix what’s behind the walls, waterproof it properly and fit it out, so it looks good and stays dry for years.

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Full renovations and updates, waterproofed properlyMelbourne and suburbs

In short

Unitex Building & Construction Group renovates bathrooms across Melbourne, from simple updates to full strip-outs. We remove the old room, repair what we find behind the walls, waterproof the wet areas, then tile and fit out the new bathroom, with plumbing and electrical work by licensed trades. Every job finishes with a walk-through together.

Updated · Unitex Building & Construction Group, Melbourne

What’s included

A complete job, start to finish

Your written quote lists exactly what’s included for your home. A typical job covers:

  • Strip-out and rubbish removal
  • Repairs to framing, floors and wall sheeting
  • Plumbing and drainage rough-in
  • Waterproofing of the shower and wet areas
  • Floor and wall tiling
  • Vanity, toilet, shower screen, bath and tapware
  • Lighting and exhaust fan
  • Painting and final clean

Why it matters

Waterproofing is the part you never see

In Australia, waterproofing of bathrooms and other wet areas is covered by the National Construction Code, through its Housing Provisions or the Australian Standard for domestic wet areas, AS 3740.

A leak behind tiles is expensive to fix because the tiles have to come up to reach it. That’s why we take our time on the membrane, the falls to the waste and the junctions where walls meet the floor, before a single tile goes on.

  • Membrane on the floor and up the walls where required
  • Falls so water runs to the waste
  • Junctions and penetrations sealed
  • Time to cure before tiling

How it works

Step by step, no surprises

  1. Measure and plan

    We look at the room, the plumbing and what you want to change, and help you check with a building surveyor whether a permit is needed.

  2. Choose and quote

    You choose tiles and fixtures, and we give you a written quote and a timeline.

  3. Strip-out and rough-in

    The old bathroom comes out, repairs are made and the plumbing and electrical are roughed in.

  4. Waterproof and tile

    Wet areas are waterproofed and left to cure, then the floor and walls are tiled.

  5. Fit-out and handover

    Vanity, toilet, screen and tapware go in, then a final clean and walk-through together.

Cost factors

What affects the cost?

We don’t publish one-size-fits-all prices, because two jobs that sound the same can be very different. These are the things that move a quote up or down.

  • Moving the layout

    Moving the shower, toilet or vanity means new drainage and plumbing, often under the floor.

  • Tiles and fixtures

    Tile size and type, tapware, vanity and screen choices vary widely in price and labour.

  • Behind the walls

    Water damage, rotten framing or old pipes found during strip-out need fixing first. Homes built before 1990 may contain asbestos, which must be identified before strip-out and removed by a licensed removalist where required.

  • Room size

    More floor and wall area means more waterproofing, tiling and time.

  • Extras

    Shower niches, floor-to-ceiling tiles, heated towel rails and frameless screens all add work.

  • Access

    Upper floors, apartments and tight access can change how the job is staged.

Every job is quoted in writing, so you know the scope and price before work starts.

Questions

Frequently asked questions

Can’t see your question? Get in touch and we’ll answer it directly.

How long does a bathroom renovation take?

It depends on the size of the room, whether the layout changes and how long the waterproofing needs to cure. We give you a timeline for each stage with your quote, so you can plan around it.

Do I need a permit to renovate my bathroom?

Usually not when you’re replacing a bathroom without structural changes, but plumbing and electrical work must be done by licensed plumbers and electricians. Moving walls usually needs a building permit. See our permits guide.

Can you turn a bath into a walk-in shower?

Usually, yes. It depends on where the drainage can go and getting the right fall to the waste. We check this on the site visit and explain the options.

What does your bathroom quote include?

Strip-out, repairs, plumbing and electrical, waterproofing, tiling, fit-out, painting and the final clean. Your written quote lists everything included and anything that isn’t.

General information for Victorian homeowners, checked October 2026. Rules change, so confirm with your building surveyor, council or the Building and Plumbing Commission.

Planning a bathroom renovation?

Tell us about your block, your home or your plans. We’ll talk it through and explain the next steps, with no obligation.

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