Toilet Replacement
New toilets measured to your existing set-out and installed properly, because the right toilet is the one that actually fits your plumbing.
Can any new toilet replace my old one?
No. Toilets must match your 'set-out': the distance from the wall to the waste outlet, plus the water inlet position. Buy on looks alone and there's a fair chance it won't fit. We measure first, tell you which suites suit your set-out, and install the one you choose properly.
Measure First
The right toilet is the one that fits
Ready Plumbing has extensive experience replacing toilets across the Northern Beaches and North Shore.
The single most important thing we’ve learned: measure before you buy. Toilets are built around specific set-outs (the position of the waste and water connections), and not every suite fits every bathroom. We do this with careful measurement and professional knowledge to make sure the job is done well and correct, the first time.
How We Replace A Toilet
How we replace a toilet
Measure the set-out
Waste position and type (floor or wall exit), water inlet, available space and door clearances.
Confirm your options
Which suites genuinely fit your set-out, across budgets. We'll recommend quality brands whose spare parts will still exist in ten years.
Careful removal
The old toilet removed cleanly, connections inspected while they're accessible.
Install, seal, test
New suite fitted to suit the layout, connected with quality components, sealed and flush-tested.
Replace Or Repair?
Replace or repair?
Most matched replacements are finished in a couple of hours. If your toilet is leaking or running rather than broken, replacement isn't automatically the answer: quality valve repairs cost far less, and we do them every week.
See leaking toilet repairs. Replacement wins when:
- The pan or cistern is cracked, which is structural and only gets worse
- The suite is old enough that parts are scarce
- It’s an inefficient old single-flush, so a modern dual-flush suite saves water on every use
- You’re updating the bathroom anyway, so pair it with a vanity replacement for one-visit impact
And as with everything in bathrooms: if someone’s told you what you want “can’t be done”, it’s worth a second opinion. Clients tell us this constantly, and much of the time they’d been misinformed, which means careful measurement finds a way more often than not. For the bigger picture, see our bathroom renovations service.
Last reviewed: 8 July 2026 by the Ready Plumbing team.
FAQ
Toilet Replacement: your questions answered
Plumbing problems can be extremely frustrating. Our licensed Sydney plumbers are here to provide fast, reliable answers and solutions.
What is a toilet set-out and why does it matter?
It's the position of your waste outlet relative to the wall (and whether the waste exits through the floor, known as an S-trap, or the wall, known as a P-trap). New toilets are designed around specific set-out ranges. Matching it means a clean, sealed installation; ignoring it means gaps, botched offsets or a toilet that simply can't connect.
When should a toilet be replaced rather than repaired?
Cracked pans and cisterns are automatic replacements. For running or leaking toilets, repairs with quality valves usually win on cost, unless the suite is old enough that parts are scarce or it's an inefficient old single-flush. We'll give you the honest maths either way.
Are new toilets really more water-efficient?
Substantially. Modern 4-star dual-flush suites use a fraction of what older full-flush cisterns pour through, and a leaking old toilet can waste more again. If yours predates dual-flush, replacement pays a dividend on every water bill.
How long does a toilet replacement take?
A matched like-for-like replacement is usually done in a couple of hours, including removal of the old suite, installation, sealing and testing.
Can you install a toilet where there isn't one now?
Often yes: it depends on where drainage runs and the falls achievable. It's bigger than a swap, but as with all bathroom work, be wary of a flat 'can't be done', since measurement and drainage assessment give the real answer.
Guides & Real Jobs
Helpful reading from our plumbers
Guide
Do You Need a New Bathroom, or Can You Remodel the Existing One?
"I need a new bathroom" is the most common thing clients say before we've even looked at it. Often what's actually needed is a refresh: a new toilet, vanity, shower screen and tapware, at a fraction of the cost and time of a full renovation.
Guide
Can I Turn My Vanity Into a Double Vanity?
In most bathrooms, yes: your existing vanity can come out and a double go in its exact place, using the plumbing that's already there. It comes down to one measurement, and one thing worth checking before you get your hopes up.
Case Study · Chatswood
Bathroom Refresh in Chatswood: A Smaller Vanity Solved What a New Bathroom Wouldn't Have
A Chatswood unit's small bathroom was dominated by an oversized built-in vanity that left no legroom at the toilet and no space in the shower. A smaller vanity and a new shower screen fixed both, without a full renovation.
Case Study · Warriewood
Bathroom Refresh in Warriewood: New Vanity, Toilet and Shaving Cabinet Without a Full Renovation
A Warriewood homeowner wanted her tired bathroom to feel new without the cost of a full renovation. We measured against the existing plumbing, sourced the right vanity, toilet and shaving cabinet, and installed all three in one visit.
Case Study · Allambie Heights
Bathroom Renovation Rough-In for a Repeat Client in Allambie Heights
An existing client's Allambie Heights bathroom renovation needed hot and cold water rough-in, a new floor waste and a vanity drain connection, all matched to his chosen fixtures and leak-tested before the walls went on.
Case Study · Mosman
New Toilet in Mosman: Matched to the Existing Plumbing, Not Just the Looks
A Mosman homeowner wanted better flushing performance from a new toilet. We measured her existing set-out and matched two Caroma Cleanflush suites to fit without touching a tile.
Case Study · Dee Why
Vanity Replacement in Dee Why: The Job Three Other Plumbers Wouldn't Touch
A Dee Why unit's basin bowl gave zero bench space and no storage. Three plumbers had already said they'd replace the tap but wouldn't touch the vanity. We measured, confirmed the waste position would work, and did it in a day.
Get In Touch
Contact Your Local Plumber in Sydney
Ready Plumbing is a Sydney-based and fully-licensed plumbing business with more than 20 years of experience, offering a range of residential and commercial plumbing solutions and emergency plumbing 24/7. Get in touch and we'll respond promptly.
Free Quick Quote
What kind of work do you need?