Bathroom renovations are where plumbers either make real money or end up working 60-hour weeks for margins that would embarrass a fast-food franchise.
The difference is almost entirely in how you price them. Here’s the framework that’s keeping plumbers profitable across Sydney, Melbourne, and Brisbane in 2026.
Three categories of bathroom job
Before pricing, classify the job. There are three distinct types with very different pricing logic:
- Plumbing-only reno: Replace fixtures, rough-in stays. Customer or builder handles tiles and cabinetry.
- Full plumber-led reno: You coordinate the whole job. Demolition, tiling, cabinetry, fixtures, electrical. Project manage everything.
- Supply-install only: Builder or customer sourced all materials. You just install.
Each one has completely different cost structures and risk profiles. Price them differently.
Plumbing-only reno (simplest)
Average 2-3 day job. Your labour + plumbing materials only.
Typical pricing breakdown for a standard en suite in Sydney metro, 2026:
- Labour: 2.5 days × $800/day (2 people) = $2,000
- Plumbing materials + fixtures: $1,800-3,500 (varies wildly with customer’s choices)
- Materials markup (you mark up 15-25%): $270-875
- Contingency: $400-600 (something always comes up — old pipes, unexpected leaks)
- Profit margin on top: 15-20%
Total fair quote: $5,500 — $8,800 depending on fixture quality.
The #1 rule: always include the contingency in your quote, visible to the customer. They’d rather see it upfront than get a surprise invoice.
Full plumber-led reno (highest reward, highest risk)
You coordinate every trade. 3-6 week timeline. This is where the real money is if you price correctly.
Sydney metro typical breakdown for a mid-range main bathroom reno:
- Demolition + disposal: $1,200-2,000
- Waterproofing + tiling: $4,500-7,500 (tiler’s sub price + your markup)
- Plumbing rough-in + fit-off: $3,500-5,500
- Cabinetry + vanity install: $2,500-5,000
- Electrical (new lights, fans, heated towel rail): $1,500-3,000
- Fixtures + tapware + toilet: $1,800-6,000 (customer choice-driven)
- Shower screen + mirror: $800-1,800
- Project management + coordination: your labour, 10-15 days at $800/day = $8,000-12,000
- Subcontractor management markup: 10-20% on subbie costs
- Contingency: 10% of total
Typical full quote: $22,000-38,000 for a standard main bathroom. Luxury or large bathrooms run $45,000-80,000.
The common under-pricing mistakes
1. Not charging for coordination time
Every phone call with the customer, every trip to choose fixtures, every subbie wrangling session — these add up to 10-20 hours over a project. Most plumbers don’t bill for this. Start.
2. No markup on subbies
If you’re coordinating the tiler and he charges you $6,000, you bill the customer $7,000. The extra $1,000 is for (a) the risk if the tiler stuffs up, (b) the time you spent managing him, (c) your warranty coverage for tile work you didn’t do yourself.
If you don’t mark up subbies, you’re working for free on the coordination — and taking all the risk.
3. No contingency
Bathrooms hide problems. Old pipes, rotted subfloor, unexpected studs in the wrong places. 10% contingency on every bathroom reno is non-negotiable.
4. Fixed-price on customer-supplied materials
Never offer fixed-price when the customer is supplying fixtures. Their $200 eBay tapware will break during install, you’ll replace it at retail, and you’ll eat the cost. Always either supply yourself or clearly label customer-supplied as “install only, no warranty on materials”.
The deposit structure that protects you
For jobs over $8,000:
- 30% deposit to start (covers your materials + early labour)
- 30% at rough-in complete
- 30% at fit-off / final fixtures in
- 10% on final inspection + customer sign-off
This keeps you cash-flow-positive throughout the job and protects you if the customer disappears mid-project.
The quote document
Written quotes over $10,000 should include:
- Exact scope, line by line
- Specific fixtures and brands (link to the supplier or attach spec sheets)
- What’s NOT included (always explicit — e.g. “does not include painting, floor coverings outside bathroom, or bathroom accessories”)
- Timeline (realistic, with 20-30% buffer)
- Payment schedule
- Variation clause (extra work invoiced at $X/hour plus materials)
- Your ABN, plumbing licence, insurance policy number
- Quote valid for 30 days
Customers who complain about the quote document usually aren’t good customers. Customers who appreciate the detail are usually your best customers — they’ll pay properly and recommend you.
How to win jobs when you’re not the cheapest
You won’t be the cheapest. Good. Compete on:
- Speed of quote. Deliver a detailed written quote within 24 hours of inspection. Most competitors take a week.
- Portfolio. Photos of 5-10 recent bathroom renos on your website. Customers want to see your work.
- Reviews. Specific bathroom-related reviews (“They did our ensuite in 3 weeks, no dramas”) outperform generic reviews.
- Clarity. Your detailed quote vs their one-line estimate. Customers who are spending $30k want to know what they’re buying.
The monthly goal
A plumber doing 1-2 bathroom renos per month at $25-35k each is doing $25-70k of revenue per month just from renos. That’s a real business. Two of those plus regular maintenance work puts you over $1M/year.
Getting there requires two things: pricing correctly, and having a website that generates renovation enquiries in the first place.
We’ve built renovation-specific sites for plumbers that do exactly this. See our plumber template or start yours — $199 up-front.