Last Update: 28 October 2025
Planning a bathroom renovation that involves plumbing requires careful consideration of various factors, including the bathroom's size and layout, desired fixtures, and overall budget. Accurate measurements are crucial for ensuring new additions complement the space without hindering functionality. While compact bathrooms may necessitate focusing on essential fixtures, larger spaces offer more flexibility for luxury items and additional electrical outlets.
When selecting plumbing fixtures, decide on the number of sinks, vanities, power points, and lighting needed, and choose specific fitting designs. Budgeting for a bathroom renovation should include research into average costs and a considerable margin for error, as unforeseen issues with concealed pipes can arise. Hiring a professional and licensed plumber is highly recommended, as they possess the necessary skills and tools to tackle complex plumbing tasks and navigate potential problems. They can also assist with obtaining necessary permits and ensuring compliance with local laws.
If you’re planning a bathroom renovation that involves plumbing, it’s essential to have a solid plan in place. Here are the answers to five common questions to help you get started.
Planning a bathroom plumbing renovation can be a bit of a time-and-money commitment, but in the end, it’s quite rewarding.
Not only does it address those hidden troubles in your pipes and drains, but it also bumps up your home’s real estate value. If everything’s upgraded properly, you’re more likely to fetch a better price when it’s time to sell.
Executing a bathroom plumbing renovation that suits your style, design, and functionality requires time and effort.
To be happy with the results, it’s wise to plan the renovation carefully and work with a trusted plumbing company. Let’s dive into how you can plan this out in detail.
Read on!
Factors To Keep In Mind When Planning A Bathroom Plumbing Renovation
When you sit down to plan your plumbing renovation, you must consider various factors. These include the size and layout of the bathroom, the different plumbing fixtures you want, and your budget for the entire renovation. Here’s how you should make an informed decision based on these factors:
1. Size And Layout
Embarking on your bathroom renovation requires meticulous planning and precision. Accurate measurement of your bathroom’s dimensions lays the groundwork for the entire renovation process, ensuring that each new addition, from floor tiles to towel rails, complements the space without hindering functionality.
A compact layout might limit you to essential fixtures like toilet roll holders and may constrain the possibility of installing wall features or large-scale glass enclosures. Meanwhile, you can plan for additional electrical outlets in a more spacious new bathroom or even consider installing luxury items to create your dream bathroom.
Regardless of size, every element must be carefully considered during the renovation process to achieve a cohesive and inviting space.
2. Plumbing Fixtures
Based on the bathroom dimensions, you should choose the fixtures you want. Decide how many sinks, vanities, power points, and lighting you need. Additionally, you can choose between specific fitting designs, such as wall-mounted or standard cisterns.
3. Budget
Of course, the question of the budget comes with every type of renovation - and it’s true for plumbing as well. Research the average costs of plumbing renovations based on the square footage and number of pipelines in the bathroom.
Also, keep a considerable margin of error while calculating the budget since contractors can incur more expenses digging into your drainage system. The concealed pipes can have many faults or breakages, so be prepared.
Hiring A Professional Plumber For Your Bathroom Renovation
Many people wish to do their bathroom renovation DIY, but it isn’t as easy as painting walls and even tilework. It requires special skills and tools that licensed plumbers are trained to use to tackle various issues. Additionally, you never know what issues will pop up while the bathroom plumbing is dug out.
Search for local contractors and plumbing companies with good reputations, reviews, recommendations, and portfolios. Before signing a contract, see if the plumbing company or plumber is licensed and whether they help with design, planning, and costing.
Since particular renovations require plumbing permits, ensure the professional plumber helps you get the licenses and adheres to local laws.
Creating a Bathroom Plumbing Renovation Budget
When you start renovating, whether it’s a spacious large bathroom or a more intimate small bathroom, the current bathroom’s floor plan will guide your decisions. Transforming an old bathroom often reveals the need for updates to comply with the latest building code, which can affect everything from the placement of a new toilet to the installation of new cabinets.
For a large bathroom, there may be more flexibility in design and the potential for adding luxury elements. In contrast, renovating a small bathroom requires a focus on maximising space and functionality without compromising style. To guard against unforeseen expenses that frequently arise during the renovation process, it’s prudent to allocate additional funds beyond the initial budget.
This ensures that upgrades, such as more efficient electrical layouts or premium floor tiles, can proceed without financial strain. Planning with these considerations is critical to achieving a renovation that meets your vision for a new bathroom.
Common Bathroom Plumbing Issues to Address During Renovation
Homeowners regularly face several plumbing issues in the bathroom, such as leaky pipes, low water pressure, and outdated fittings and fixtures. Even though they might sound minimal, they’re annoying, mainly when they affect the walls and disrupt your daily life.
A bathroom plumbing renovation can resolve these issues and offer long-term relief. So, ask your plumber to pay special attention to those problem areas in the bathroom. You should finish these before other contractors start the tilework and painting.
Timeline For A Bathroom Plumbing Renovation
As the contract mentions, renovating your bathroom’s plumbing system takes 4-5 weeks if the work proceeds regularly. However, home development deadlines often need to be more specific and attainable. Many things can go wrong, including sick workers, lack of materials, bad weather, etc.
So, add at least 30% to the stipulated timeline to align your expectations with reality. Usually, professional and reliable plumbers try to complete the renovation within the promised time. However, remember that a longer timeline would also negatively affect your budget, so politely reiterate the promised time with your contractor.
Revamp Your Bathroom Plumbing: A Comprehensive Guide To Successful Renovation
Getting a professional and licensed plumber to renovate your bathroom can significantly improve its functionality and simplify things. So, book a consultation with a trusted plumbing company and determine the designs and budget for your bathroom plumbing renovation.
WP Plumbing has a team of licensed and insured plumbers who can tackle various services, including bathroom renovations, hot water systems, plumbing emergencies, etc. We are available at your beck and call all over Melbourne and surrounding areas. With our fast same-day response, upfront pricing, and labour guarantee, we aim to deliver 100% customer satisfaction.
Published by: Pascal Harb28 October 2025