Bathline 
C ★★★★★
C. Tan
Paddington · via Google
“The proposal arrived with every fitting named by brand and model. Five years on, the membrane is still perfect and the warranty paperwork is still in the drawer.”
Sydney bathroom renovations
A bathroom designed once,
Fixed-price proposals, in-house build crew, seven-year workmanship warranty.
CMJA
★★★★★4.9 · 240+ reviewsLic. NSW Lic. 304 999C · Public liability to $20M, Home Building Compensation cover, NSW
7yrworkmanship warranty, in writing
HIA Member · Master Builders NSW · Licensed NSW Builder
◆Licensed
NSW Lic. 304 999C
◆Insured
Public liability to $20M
◆Waterproofing
Certificate of compliance, signed
◆Warranty
Seven years, in writing
◆Reviewed
240 reviews, 4.9 stars
4.9★240 reviews on Google
24 yrrenovating Sydney bathrooms
7 yrworkmanship warranty in writing
Signedwaterproofing certificate of compliance
The cover a cheap bathroom quote leaves out
Protected in writing, before any work starts
The statutory NSW cover, the public liability, and the seven-year workmanship warranty, all named on page one.
Required in NSW
Home Building Compensation
NSW requires a licensed builder to pay Home Building Compensation cover on work over the statutory threshold. The certificate sits on your contract.
Policy on file
Public liability
Fully insured on site
Cover for your property and anyone on it, for the length of the renovation.
$20M
Workmanship
Seven years, in writing
A written workmanship warranty that outlasts the statutory minimum, signed by the director.
7 yr
What we do
Our services, end to end.
A clear menu of what we offer, with the lead service surfaced first.
Ensuite renovation
Tightly-scoped ensuite refresh or full renovation, ideal when the main bathroom is already tidy or you are preparing the home for sale.
Get a quote →
Laundry renovation
European laundries and full freestanding laundry rooms, designed to work with your bathroom program for one mobilisation.
Get a quote →
Waterproofing and compliance
AS 3740 waterproofing applied by a licensed waterproofer, with a signed certificate of compliance issued to you on completion.
Get a quote →
Design and selections
A fixed-fee design and selections phase, deliverable as measured plans, 3D visuals and a named selections schedule you can build from.
Get a quote → Proof, recent work
Recent projects.
Before 
After 
Before 
After 
Before 
After Reviews
What homeowners say.
Wall of love
What homeowners say.
★★★★★ 4.9 average 240+ Google reviews
M ★★★★★
M. Reilly
Mosman · via Google
“Fixed price held to the dollar. They flagged a hidden leak under the slab on day three and quoted the repair in writing before they touched it.”
J ★★★★★
J. and P. Costa
Lane Cove · via Google
“We did the main bathroom, ensuite and laundry on one program. One crew, one waterproofing visit, one final clean. Seamless.”
A ★★★★★
A. Davies
Rose Bay · via Google
“Bathline are the only Sydney bathroom company we spoke to who explained the AS 3740 certificate before we asked. Now we know why it matters.”
R ★★★★★
R. Vlahos
Alexandria · via word of mouth
“Three quotes, one Bathline, two cheap. The cheap ones were $11k less. The Bathline one was on a fixed-price contract with a seven-year warranty. We went with Bathline.”
How it runs
What happens next, step by step.
1
Consultation
A 90-minute in-home meeting. We walk the room, talk through how you use the bathroom, and book the design phase.
2
Design and selections
Measured plans, 3D visuals, and a guided selections appointment at our suppliers. You sign off the design before anything is ordered.
3
Fixed-price contract
Inclusions itemised, materials named, start and handover dates written in. One price, locked.
4
Strip-out and rough-in
Demolition, plumbing rough-in, electrical rough-in, frame adjustments. Site protection through the rest of your home.
5
Waterproofing and tiling
AS 3740 membrane, certificate signed and filed. Then full-height tiling by our in-house tiler.
6
Fit-off and handover
Vanity, screen, tapware and accessories installed. Final clean, walk-through, and the warranty paperwork in your hand.
Why us
The quote is the job, line by line.
What our itemised quote locks in, and the shortcuts a cheap operator takes.
The 7-line quote
- 1 On-site walk-through. We measure the room, photograph every surface and confirm scope before any number lands on the page.
- 2 Named selections. Tiles, vanity, tapware and shower screen specified by brand and model. Never "or equivalent".
- 3 Fixed-price proposal. One line item per inclusion, one final number. Locked before the contract is signed.
- 4 Waterproofing compliance. AS 3740 waterproofing membrane, applied by a licensed waterproofer, with a signed certificate of compliance.
- 5 In-house build crew. Carpentry, tiling, plumbing and electrical run by our own licensed trades. One crew, one accountability line.
- 6 Defined timeline. Start date, milestone dates and handover date written into the contract. Variations are itemised before they happen.
- 7 Seven-year written warranty. Workmanship warranted for seven years from handover, sitting on top of the statutory NSW Home Building cover.
If a quote doesn’t show these lines, you can’t compare it, and you don’t know what’s been cut.
What you get from us
- ✓Fixed-price proposal, signed before work starts.
- ✓Waterproofing certificate of compliance, signed by a licensed waterproofer.
- ✓Tiles, vanity and tapware named by brand and model.
- ✓In-house team. The crew that quotes is the crew that builds.
- ✓Seven-year written workmanship warranty.
Cowboy tells
- ✕Day-rate quote, then variations bleed it past budget.
- ✕Waterproofing "on the day", no certificate, no name on the membrane.
- ✕Generic spec sheet, "PC sums" left open for the showroom to settle.
- ✕Subcontracted everything, nobody on site responsible.
- ✕Twelve-month warranty buried in clause 14.
Before you call anyone
Work out the scope, then see the range.
Two free tools. Both run in your browser, store nothing, and end in an on-site walkthrough. Neither is a quote.
Guarantee in writing
The cover that backs the work, named up front.
Layer 01
Seven-year workmanship warranty
The Bathline workmanship warranty, in writing, for seven years from handover. Covers our build, our installation and our finish.
Layer 02
NSW Home Building Compensation cover
On work over the statutory threshold, the licensed builder pays Home Building Compensation cover. The certificate is filed and the policy number named on your contract.
Layer 03
Statutory (ACL)
Services rendered with due care and skill for a reasonable period under Australian Consumer Law. Always applies.
Watch this before you book
The questions every customer asks, answered once.
Chapter 1 · FAQ The bathroom-renovation FAQ
Filming soon · 8 to 12 min
How much does a bathroom renovation cost in Sydney?
A full main-bathroom renovation in Sydney typically lands between $32,000 and $58,000 on a fixed-price contract, with premium selections taking that to $60,000+. An ensuite refresh is closer to $22,000 to $38,000. The estimator on our pricing page gives you a range in under a minute.
Is the price actually fixed?
Yes. Every Bathline contract is a fixed-price proposal with every inclusion itemised before you sign. Variations are quoted in writing before they happen, never absorbed into the build.
What is a certificate of compliance for waterproofing?
It is a signed document from a licensed waterproofer confirming the AS 3740 membrane meets the standard. On every Bathline project the certificate is filed and given to you at handover, with the waterproofer named in your contract.
How long is a Sydney bathroom renovation, end to end?
Four to six weeks of design and selections, then five to seven weeks on site for a standard main bathroom. Start and handover dates are written into the contract before you sign.
Do you handle strata approvals for apartment bathrooms?
Yes. We work with your owners corporation, lodge the works notification, share insurance certificates, and program demolition inside the building’s noise window. Strata approvals add four to six weeks of lead time, planned into the program.
What does the seven-year warranty actually cover?
It covers our workmanship across the build: tiling, fit-off, joinery and finishes. It sits on top of the statutory NSW Home Building Compensation cover and the AS 3740 waterproofer’s membrane warranty, which are separate and longer.
Where we work
Our service area, suburb by suburb.
6 suburbs across the Sydney. No surcharge within 30km of Alexandria.
Larger map Get started
Book the in-home design consultation.
Tell us about the bathroom you have and the one you want. We walk the room, lock the scope, and send a fixed-price proposal you can compare line for line.
✓ HIA Member✓ Master Builders NSW✓ Licensed & insured✓ 240 five-star reviews✓ Seven-year workmanship warranty, in writing, on every renovation
Where this sits in the market
Bathline against the Sydney bathroom-renovator field.
These numbers are modelled from the Google Business Profile census of Australian bathroom renovators and the curated Beautiful Scorecard, captured 2026-06-12. Every figure below is sourced, not fabricated.
National field
466
listings tracked across AU
Median reviews, AU
29
p25 14 · p75 56 · max 585
Beautiful Scorecard
36.6/45
field mean across 9 scored sites · best 42/45 (Nu-Trend)
Source: GBP census n=466 captured 2026-06-12; Beautiful Scorecard n=9. Site identity and numbers are a composite demo (see footer disclaimer).