This are our tips for moving a toilet on a concrete slab or other type of property & change your floor plan.


Moving a toilet in a house or unit

Luxury unit bathroom renovations in Sydney installed by Nu-Trend

Is moving a toilet possible with a domestic plumber?

Moving a toilet is actually possible to be done for any property by a domestic plumber in Sydney. At the end of the day a toilet is like many other things on a property that are planned then built during construction. Of course what can make that task either quite easy or very complex is the type of situation and property involved. So for example a house that is on a solid concrete slab will require a different level of renovation work to move a toilet vs house with beam and block or suspended timber. Alternatively it may be a multi-storey unit block that would post a different set of challenges.



Creating space
If you consider moving a toilet, even just a few inches it can greatly improve the space usage and function of your bathroom space. Especially in older properties most bathrooms don’t make the most ideal use of their limited space. So sometimes by relocating some of the primary items you can make big differences without completely changing everything. Sometimes people will move or relocate their toilet for aesthetic reasons like getting it centred on a wall or moving it away from a door or window.



Supply & Waste lines
When do do start thinking about moving your toilet you have to remember it isn’t just about the big white piece you sit on, there are also the supply line and waste lines that may both need to be moved as well. Whether one or both need to be done depends on how far the toilet is being removed and what types of lines you have available. Sometimes the water supply is connected to your toilet by a flexible supply line, so you might be able to get away with simply installing a slightly longer supply line tube thus avoiding the need to reposition the water line access point.


The one that can be a little more complicated is the waste water line that moves whatever you flush into the public wastewater system. In most cases there is a waste water pipe under the toilet that uses gravity to move wastewater away. Sometimes a new flange can allow for small movements without having to cut new holes in the floor. In other situations a completely new hole and adjustments to the lines need to be made, so your budget needs to allow for the toilet being moved and then repairs to the old section of the room.



Space under the floor
If you have space under your bathroom to work with then your options become much easier. If there is at least crawling space then ground floor bathrooms can be adjusted relatively easily compared to ones on a concrete slab. If the bathroom is on the first or second storey then it means needing access to walls and ceilings.


All plumbing systems also need to be able to vent. For most properties there will be a series of pipes that don’t collect or pass any water they are for venting to provide air to help water flow. They also carry smells out of the house, especially in the case of toilet vent pipes. So, when moving a toilet, you have the drain pipe alignment with the mainline sewer pipe, water supply & vent pipes. It isn’t a typical DIY job and requires a domestic plumber who is licensed and qualified. 


Can you move a toilet on a concrete slab or does it need a bathroom renovation?

If your house, or in particular, your bathroom has been built on a concrete slab then to move the toilet more than a few inches means excavating the concrete to access and relocate water and waste lines. Once that has been done, the concrete foundation needs to be repaired with new sub-flooring, flooring and tiling. 


As you can imagine, these additional steps add considerable cost and work involved, so in some situations may not be financially sensible. Although if you are already planning to do a complete bathroom renovation, this is the ideal time to incorporate such changes as everything would be stripped back in any case. 


The Nu-Trend team are professional renovators who have the appropriate license, qualifications and experience to help you in these scenarios.



How much does moving a toilet cost?

As you can see from the information we have shared this will vary based on the scenario e.g property type, how far it is being moved, what is access like etc. We can provide a free quotation to have your toilet moved so you can assess your options. You may determine that a bathroom renovation is a more cost effective approach that can deliver better value long term.




How did we move this toilet?

Nu-Trend can provide you with a qualified domestic plumber that is able to help with all types of bathroom plumbing problems. For this project our Client wanted to move their toilet in the outside bathroom, luckily they had a suspended slab and space under the house so it made access quite easy.


– The old toilet had broken but we managed to use the existing cistern to save them some money.


– We made sure  the drainage stack was adjusted to work in the new position.


– We capped the existing floor hole with concrete.


– A new water point was installed and we were able to install plus commission this toilet moving project as a same day service.


The total cost for this was $2,400 plus GST and what made it easier to manage is the space under the house was enough for us to be able to move around with all facilities fairly close to where the old locations for water and drainage were.

Other frequently asked questions about moving a toilet

Can you move a toilet on a concrete slab?

Yes you can move a toilet even if has been installed on a concrete slab which is common for a lot of modern homes. Anything is possible when it comes to changing your bathrooom layout and most considerations will come down to budget, the physical building limitations and legal requirements.

As long as we are able to get sufficient access to the piping & floor area without needing to change the structural composition of the property then we can move a toilet on a concrete slab to help change your bathroom floor plan.




Can you move plumbing on a concrete slab?

As well as moving a toilet on a concrete slab Nu-Trend can also assist you to move the plumbing if required. In most case we will use a wet saw machine to chase out and excavate the slab work so we can move the pipe to where it is needed. The cost to move the plumbing in a concrete slab will depend on how much or how far they are being moved as it is a labour intensive project.




How much does it cost to move or relocate a toilet Australia?

Every property in Australia is unique so the cost to move a toilet can vary from $100 to many $1,000’s depending on the property type & layout. What will vary greatly is the time, tools and materials needed to complete any type of toilet move whether that is a wooden floor board or concrete slab. 




How difficult is it to relocate a toilet?

It might be very easy to relocate a toilet if the foundations of the property are raised and there is plany of under floor access. Although this will just all depend on the existing or non existing surrounding and building structures which may or may not pose various limitations to what can be done.




How far can you move a toilet from the stack?

The distance from your toilet to the stack isn’t a fixed number and there are to many variables to be considered and ‘what if’ scenarios that can be looked at. Quite literally Nu-Trend would need one of our qualified local plumbers to come and look at the property to assess or compare the position of the sewer vs the stack vs surrounding ventilation vs where you wanted to move the toilet to so that we can work out if it is possible and legal.




Can you put a toilet anywhere in your house?

Yes it is quite possible to put your toilet anywhere you like in your house as long as it complies with the local laws and will achieve council approvals. 




Can a toilet and sink share the same drain?

In some situations your toilet and sink might be able to share the same drain although it would need to be sized correctly and  plumbed in a certain way to meet legal requirements or pipe sizing.




What happens if you don’t vent a toilet?

You might try and save some money on moving your toilet by not venting it the right way but that isn’t a good thing as it can lead to;

 – Blockages
 – Bad smells
 – Gurgling
 – The sewer pipes not functioning correctly
 – Potential overflow of your sewer




What does it mean when a toilet gurgles?

If you hear a strange gurgling noise from your toilet it can mean a few different things depending on the property. So in some scenarios it could be related to incorrect venting, the beginning of a pipe blockage or simply just old, poor, plumbing that has had its day.




How do you tell if your vent stack is clogged?

You can tell if your vent stack is clogged when you start to experience bad smells, gurgling or even sewer overflow. By hiring a Nu-Trend qualified plumber we can use our CCTV digital camera equipment to inspect the lines to see what is causing the issue.




Does every toilet need a vent pipe?

Every toilet needs to be connected to a vented sewer line in the appropriate position to function properly. This includes any toilet that is relocated or moved because the venting may also need to be adjusted. 




Can you vent a toilet with a 2 inch pipe?

The size needed for venting will depend and vary for each specific toilet relocation project as every property and situation is unique. 




Can a toilet vent run horizontal?

You can run toilet vents horizontally however vent pipes must be run in a way where water will be able to drain with no obstructions.




How many toilets can be on a 4 inch drain?

Every toilet renovation project is different. So depending on what the surrounding fixtures are and the distances between them you may be able to use a 4 inch drain. Our qualified plumbing team can help you work out what is required.


Can you move a toilet over a few inches?

Yes it is possible to move a toilet a few inches to help with creating space in your bathroom. The Nu-Trend plumbing team can help with these scenarios. Although, it is important to consider that depending on how the toilet was installed on the floor there is a chance it could be damaged when it is removed from the base to the sewer pipe.

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Michael has been in the industry for more than 20 years, passing his knowledge and expertise to Rick as the family tradition lives on.

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Rick Karagiannis - Plumber & Bathroom Renovator

Rick Karagiannis - Plumber & Bathroom Renovator

Rick Karagiannis is a licensed Plumber, Building Renovator and Director of Nu-Trend, a Sydney Plumber and Bathroom Renovations contractor. Nu-Trend has been operating since 2009 as an independent sole trader in Sydney. Rick provides all types of services for small bathroom renovations, leaking tap repairs, hot water high-pressure jet blasting and more.