Bathroom & Laundry Renovation Plumbing

TL;DR · Quick answer

Our licensed plumbers in Canning Vale handle every plumbing stage of bathroom and laundry renovations throughout the south-east suburbs. We manage rough-in, relocations, waterproofing coordination, and the final fit-off, ensuring your new space works perfectly for years to come.

The part of a bathroom or laundry reno that gets hidden behind walls? That's the plumbing. And honestly, it's the thing most likely to give you the worst headaches if it's not done right from the beginning. A rough job during the rough-in and you could be chasing leaks under your brand new tiles a year later. Get it sorted properly though, and everything just works quietly for ages. Our team are licensed plumbers based in Canning Vale, and we look after the complete plumbing scope for renovations right across the south-east, from pulling the old stuff out to that final satisfying click when the last fixture goes in.

You're putting a lot of money into a renovation, and it's the plumbing underneath that decides whether it all holds together. We reckon it's better to use someone who's done heaps of these and knows how to work alongside your other trades, not someone who's only tackled a bathroom once or twice before.

Rough-in: the stage that matters most

Rough-in is all the first-fix work—pipes, drains, wastes—going in before the walls get closed up and the tiler arrives. This is where every water point and waste gets positioned exactly where your new design wants it. It has to be spot on here, because once the waterproofer and tiler have done their thing, shifting a pipe becomes a right mess. We're talking pulling tiles off, potentially cutting concrete, real hassle.

Here’s what we set out and install during this stage:

  • Hot and cold water points for basins, showers, baths, toilets and laundry troughs
  • Drainage and waste points, set to the correct falls so water actually drains
  • Floor waste positions and shower drainage
  • Provisions for mixers, wall-mounted taps and concealed cisterns
  • Washing machine taps and drainage in the laundry

We position all these points to match your plan exactly. That means your vanity, your shower, every fitting lands where the designer drew it—no last-minute compromises because a pipe's sitting in the wrong spot.

Relocating points for a new layout

Most renos aren't just swapping things over like-for-like. People shift the shower, move the vanity to the opposite wall, or turn a pokey old bathroom into something that actually fits the family. That involves relocating water and waste points, which is definitely a licensed plumber's work. We can move the toilet, reposition the basin, shift the shower, and run new supply and drainage lines to suit your fresh layout, all set out properly before the next trades come in.

Same idea for laundries—moving the trough over, adding a second appliance point, or rearranging everything to squeeze in more storage. Sorting these moves out early keeps the whole project flowing and stops those nasty mid-build surprises when a pipe can't reach where the plan thought it could.

Getting the layout right on paper first

Changing your mind is cheapest before any pipe's even in the ground. We're happy to look at your plans early and point out things that'll cause problems—a shower drain landing on a joist, a vanity waste that's a nightmare to connect, a toilet spot that just can't quite reach the existing sewer without some ridiculous run. Tweaks on paper cost you nothing. The same fixes after the concrete's cut or the walls are framed up? That's real money. A quick chat at the design stage often saves more than it costs, and it means the plumbing part of your reno goes smoothly instead of being a string of on-site workarounds.

Waterproofing coordination

Waterproofing is everything in a wet area, and it needs to happen in the right order with the plumbing. If pipe penetrations aren't sealed and set properly before the membrane goes on, water finds its way behind it and causes exactly the kind of hidden damage you're renovating to fix. We work with your waterproofer and tiler so all penetrations are correctly prepared, giving that membrane a proper surface to bond to.

Getting the sequence right between plumbing, waterproofing, and tiling is one of the biggest reasons to use a plumber who's done a lot of renos. The order things happen genuinely matters, and a small mistake here can haunt you for years.

Fit-off: bringing it together

Fit-off is the satisfying last step—putting in all the visible fixtures once the tiling and painting are finished. This is where your new room actually starts to look like something:

  • Installing basins, vanities, toilets, baths and showers
  • Fitting tapware, mixers and shower fittings
  • Connecting the washing machine and laundry trough
  • Installing floor wastes and grates
  • Testing every connection for leaks and correct operation

We test the lot properly before we leave, so your first shower isn't spoiled by discovering a drip under the vanity. Upgrading tapware everywhere? Our tap and fixture experience means we'll recommend quality fittings that suit your design and fit them right.

Thinking about hot water and gas

While everything's already open and accessible, it's the ideal moment to sort out related plumbing too. If your hot water system is getting on, swapping it out now saves doing it as a separate job later on. Need to move a gas point—maybe shifting a cooktop as part of a kitchen reno that connects to the bathroom? That's licensed gas fitting we can sort at the same time, so all your compliance paperwork comes from one trade instead of juggling several.

Working with your builder or on your own

We're used to working alongside builders, cabinetmakers, and tilers, or jumping straight in with homeowners running their own reno. Either way, keeping everyone talking and the set-out precise keeps things moving on schedule. Being local to Canning Vale, Thornlie, Willetton, Riverton, Southern River, Harrisdale, Gosnells and Huntingdale makes coordination simple—we're not driving across the whole of Perth just to get to your place.

All work is done by licensed, insured plumbers with upfront pricing. No vague estimates that somehow double once the walls are open and we're already committed.

Planning a bathroom or laundry reno? Request a quote or call our licensed Canning Vale plumbers to get the plumbing sorted from rough-in to fit-off.

Frequently asked questions

Related: Tap & Fixture Repairs, Hot Water Systems, Gas Plumbing & Fitting

What's the difference between rough-in and fit-off?

Rough-in is the first-fix plumbing that goes in before the walls get closed and the tiles go down—setting out all your water and waste points to the exact positions your new layout needs. Fit-off comes last, once tiling and painting are done, and that's when the visible bits like basins, toilets, tapware, and showers actually go in.

Can you move my shower and toilet to a new position?

Absolutely. Relocating water and waste points is standard licensed plumbing work and we do it on most renovations. We can shift your toilet, basin, shower, and laundry points to wherever the new layout needs them, getting everything set out precisely before the tiler and waterproofer come through.

Do you handle the waterproofing too?

We don't do the waterproofing itself, but we work really closely with your waterproofer and tiler to make sure all pipe penetrations are set and prepared correctly before the membrane goes on. Getting that sequence right between plumbing and waterproofing is essential, it's how you stop hidden leaks developing behind your new tiles.

Should I replace my hot water system during the renovation?

If it's ageing, then yeah, it makes sense. Things are already open so it's much easier, and you avoid having to do it as a separate job later. We can give you advice on whether replacement is worthwhile and handle it as part of the reno, including any gas point relocations if your renovation ties into the kitchen.

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