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How Much Does Plumbing Cost for a New House in Melbourne?

  • News
  • 03 - 05 - 2019
  • By Heritage Plumbing
How Much Does Plumbing Cost for a New House

As you plan to build your new home in Melbourne, you will need to consider the cost of all aspects of the build. Plumbing cost is only one aspect of the build. Like the electrical, structural, design, amenities, landscaping, and other aspects of the build, plumbing is equally important. Whether you engage a builder or construction company to build your new home, or project manage the entire job yourself, you will need to source a reputable, reliable and experienced plumbing company.

The main plumbing aspects of a new build include the hot water service, air-conditioning unit, heating unit, bathroom, kitchen and laundry rooms, roof, gutters and downpipes, sewage and drains, rainwater tanks, swimming pool, garden features, and the irrigation system. When you are designing your new home, you must ensure that you engage a qualified residential plumber to appropriately and adequately scope all plumbing matters. It is important that the plumber is involved in all meetings with the architect, engineer, builder, electrician and other trades to ensure the new home’s plumbing is not compromised and that all discussions are transparent.

The cost of plumbing for a new house varies from property to property. There is no ballpark figure for any type of house based on square meterage or the number of rooms. The main reason is because each home is never the same. Different designs, features, location, environmental factors, overlays, title limitations and other variables all affect the plumbing cost for a new house in Melbourne.

Plumbing Cost for New House

Assuming plumbers charge between $80 and $150 per hour, as a guide, here are the average costs for plumbing jobs in relation to a new house:


  • $600 to $2,000 per kitchen, laundry or bathroom appliance;
  • $2,000 to $15,000 to install pipework (depending on the size of the property);
  • $2,000 to $5,000 to install a hot water service; and
  • $7,000 to $12,000 to install an air-conditioning and/or heating unit.



To help you ensure you appropriately consider the plumbing aspects for your new home, we have developed the following guide that will provide you with helpful tips. At the Heritage Plumbing Group, we have helped many residents, investors, builders and developers assess their plumbing matters so that they make an informed decision. We have then plumbed the new property with skills and experience, quality tools and materials, and a collaborative and proactive attitude.

1. Preliminary Discussions About Your New Home

Before you begin discussing your new home plan with builders and other trades people, it is important that you first talk about the idea privately. Whether you choose to involve your family or friends, you must ensure that you spend time thinking about your new home without interference or pressures from other people. At this stage, it is not important whether what you would like to have in your new home is feasible and practical. Let your needs, wants and creativity guide you so that you can pen down or discuss your thoughts freely.

Ultimately, your new home is for you and your family. You will only enjoy your new home if you are happy with how it has been designed and what features have been included. Once you have developed your ideal design and a wishlist of all the features you would like to have, save this somewhere because you will use it later.

2. Think About Contingencies

Often, your ideal design and wishlist of features might not be able to be built and installed. However, builders, plumbers, electricians and other trades people will work with you so that you can have the dream home you desire. It is best to keep at the back of your mind that a professional opinion may mean that the design might need to be changed or the features might need to be amended. The trades people are not suggesting changes to make you upset, but to ensure the new build complies with the applicable laws, regulations, codes and other important principles.

Make sure you have a Plan B or Plan C design and wishlist of features. Think about what changes you will be happy with so that when the trades person suggests that something might not work, you will be happy to present alternatives that you have already considered.

3. Engaging A Professional Plumber

Now it is time to engage professional trades people. You can either engage a builder or construction company to help you build your new home or you can project manage the entire build yourself. Remember, project managing a new home build is complicated and you might also be attending to other matters such as work, children and other activities. While you might be motivated to take control over the build and save money doing project management on your own, be reasonable with yourself and ensure that you do not take on a task that might be difficult to achieve.

There are many reputable building and construction companies that hire quality trades people to help them with the build. They also employ reliable and trustworthy building supervisors who have many years of experience to ensure the people working on site do an excellent job. However, if you are project managing the job yourself, you will need to source a professional plumber. We have written a blog that will help you source a plumber. See ‘10 Steps Checklist for Hiring a Plumber in Melbourne’. Make sure the plumber is licensed, police checked, insured, local and reliable.

4. Discussing Your Plan And Ideas

Whether you have engaged a building or construction company, or will project manage the build yourself, you will need to discuss your plans and ideas with the trades people. In particular, you will need to involve a plumber so that they can provide their expert opinion and help you design a new home that will comply with the applicable plumbing regulations and codes. It is important that the plumber is involved in all discussions (i.e. with architects, engineers, carpenters, electricians, tilers, etc.) to ensure no changes are made to the plumbing scope without the plumber’s knowledge.

Often, separate discussions result in the plumber not being made aware about changes that have not considered important plumbing matters. This can lead to unnecessary variations, delays and costs during the build because of poor communication. Ensure that all trades people are involved in discussions and all communications are documented for future reference.

5. Be Receptive To Feedback

When a trades person provides feedback on your plans and designs, they only have one intention – to help you! With their day-to-day experience, qualifications and skills, they will make suggestions in your best interests. Remember to be receptive to their feedback because it is not intended to cut corners, maximise their profits or make their job easier. This does not mean that you accept everything that one trades person says. You should seek alternative opinions and discuss your queries with others trades peoples, friends, family and colleagues to make a balanced, fair and informed decision.

6. Understand The Plumbing Aspects Of The Build

Now that you have put forward your plan and ideas, received feedback and have made the necessary adjustments, it is important to understand the plumbing aspects of the build. This will affect the plumbing cost of your new house. It is wise to never compromise on plumbing. You intend to live in your new home for years to come, so it is important to not cut corners when it comes to plumbing. Plumbers will make sure that they provide reasons against any attempts to lower costs or limit features.

They will also ensure that, pursuant to their professional registration, their suggestions are aligned to plumbing codes and regulations. While you might wish to negotiate on the parts used or the location of fixtures to limit the amount of parts used, plumbing needs to be completed in a compliant manner to ensure the services work and are used in accordance with regulations.

7. Agree To Plans And Scope

Once you have discussed the plans and scope with the trades people, make sure everything is confirmed in writing and that all trades people are happy to proceed. You will then need to seek building permits and comply with other legal and regulatory procedures before commencing the build. Ensure that you discuss any queries with your architect, engineer, builder and trades people because they will also have the knowledge to help you with the build so that everything is covered.

8. Agree To A Timeline

It is important that you agree to a timeline for the build so that you can ensure that your trades people will be available to service the build. Make these discussions transparent with all so that everyone’s diaries align. Your trades people will work with you to suit your expectations and make sure that the build proceeds smoothly and without interruptions and delays.

9. Commence The Build

Now it is time to see your trades people commence the build of your new house. If you are project managing the build, make sure that you either supervise the build yourself or engage a qualified and experienced professional to undertake supervision duties. Ensure that you communicate with your supervisor and your trades people on a regular basis to understand the status on the build and whether any matters need to be addressed. Remember to be patient with your trades so that they can complete the job to perfection.

If you require any further information about plumbing matters for new homes, give the team at Heritage Plumbing Group a call on (03) 9498 0458. If you have any other plumbing matters for residential and commercial properties, we have a qualified and experience team available to help.

Experience Commercial Plumbers Melbourne – Heritage Plumbing Group

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