ocean shores bathroom

Bathroom Renovation Cost Estimator — Northern Rivers NSW

What will my bathroom cost?

Get a rough idea of your bathroom renovation cost in 60 seconds.

Every bathroom is different — size, finishes, fixtures, and scope all affect the final number. This estimator gives you a ballpark figure based on the most common renovation scenarios across the Northern Rivers so you know what you're working with before you pick up the phone.

No obligation. No personal details required. Just a quick, honest starting point.

How it works

Answer a few simple questions about your bathroom — size, finish level, and what you're looking to change. We'll give you an estimated cost range based on real Northern Rivers job data.

When you're ready to take the next step, contact OJM Builders for a proper quote tailored to your specific brief.

What affects the cost of a bathroom renovation?

Understanding what drives cost helps you make better decisions before you commit to anything:

  • Size — a compact ensuite costs less than a full family bathroom or master suite

  • Finish level — budget tiles and standard fixtures versus designer stone and custom cabinetry are very different price points

  • Scope — a cosmetic refresh costs less than moving walls or relocating plumbing

  • Trade coordination — having one builder manage all trades versus coordinating them yourself affects both cost and outcome

  • Waterproofing and compliance — non-negotiable in any wet area and a hidden cost many quotes leave out

Frequently Asked Questions

Is this estimate accurate?
This tool gives you a ballpark range based on typical Northern Rivers bathroom renovations. It is not a formal quote. Every job has variables that can only be assessed on site — this is a starting point, not a final number.

How do I get an accurate quote?
Contact OJM Builders directly. We'll visit the site, assess the scope, and give you a detailed quote based on exactly what needs to be done.

Does OJM Builders cover my area?
We work across Byron Bay, Ballina, Lismore, Brunswick Heads, Bangalow, Mullumbimby, Tweed Heads, Murwillumbah, Lennox Head, Ocean Shores, Pottsville and surrounding Northern Rivers areas.

What's included in an OJM bathroom renovation?
Everything. We coordinate all trades — plumber, tiler, electrician, waterproofer, plasterer, cabinetmaker — so you deal with one person from start to finish.

OJM BUILDERS
Northern Rivers, NSW · Licence 319543C

Bathroom Renovation Estimator

Toggle your selections below to get a rough indicative range, built from our real trade rates — not a fixed quote, but a genuine starting point before we talk.

Bathroom Area

Included As Standard

Demo & strip out$1,000
Waterproofing$1,000
Skip bin$1,000
Carpenter — angle install$400
Carpenter — install bathroom furniture$500
These are baked into every bathroom reno regardless of what's toggled below.

Plumbing & Electrical

Plumber
Basic = fixtures reinstated in existing positions, disconnect & fit-off. Extensive = relocated fixtures or older/difficult existing plumbing.
Electrician

Tiling

Curved elements
Curved walls, curved shower curbs etc.
Window in shower
Tiling calculated at $60/m² across wall + floor area, $6,000 minimum call-out, plus any of the above.

Shower Screen

Fixtures & Fittings

Tapware (basin + shower mixer)
Shower head
Vanity
Toilet

Optional Extras

BathtubSupply allowance $1,300–$2,000
Heated towel railSupply allowance $200–$450
Shaving cabinetSupply $400–$800 + $300 carpenter install
SS strip drainSupply allowance $400

Additional Carpentry

Trims & architraves$400
New ceiling & set$1,000
New door requiredSupply & install — $1,000

Site & Approval Factors

Is this a new bathroom, or replacing an existing one?
Floor level
Adds 5% per floor for material handling.
Floor structure
Wall structure

Site Conditions

Grinding walls / concrete floor$1,000
Older home / suspected water damage or rot$1,000–$4,000, only confirmed once behind the walls
Moving walls / structural changes neededChanges the whole scope of this job
Structural changes take this outside a simple bathroom reno — walls, engineering and permits all come into play. This needs a full PAC scoping rather than a ballpark number.

Indicative Estimate

$0 – $0
inc GST · rough range only
Included as standard$3,900
Plumbing & electrical$0
Tiling$0
Shower screen$0
Fixtures & fittings$0
Optional extras$0
Additional carpentry$0
Builder Management & Compliance (20%)$0
Estimated total$0 – $0
Email me this estimate
This is a ballpark only, built from our real trade rates — not a fixed quote. Includes a 20% Builder Management & Compliance fee, covering trade coordination and scheduling, verifying work against the NCC and relevant Australian Standards, quality control at each stage, and single-point accountability for the job. Real pricing depends on what's actually behind your walls, plumbing layout, and trade access, which is exactly what our paid scoping process is for: site inspection (including inspection holes where needed), each trade pricing their own work on site, and a fixed number you can rely on before you commit.
OJM Builders · Licence 319543C · ABN 89 697 330 877 · oliver@ojmbuilders.com