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What Are the Most Common Bathroom Renovation Mistakes to Avoid?

What Are the Most Common Bathroom Renovation Mistakes to Avoid?

, by Support Team, 9 min reading time

Embarking on your first bathroom renovation can be exciting, but it’s also a daunting task, especially if you’re a first-time homeowner. The journey can quickly turn into a frustrating experience if certain mistakes aren’t avoided. From delays to incorrect measurements, choosing the wrong colour scheme, and underestimating the costs, there are plenty of pitfalls that can complicate your project.

Today, we’ll walk you through the most common bathroom renovation mistakes, giving you the essential information to ensure your first reno runs smoothly, efficiently, and within budget.

Not Setting a Realistic Budget

When renovating your bathroom, it’s easy to get carried away with your dream vision. However, one of the most common mistakes is not having a well-thought-out budget. Overestimating what you can afford or underestimating the cost of materials and labour can cause unexpected delays and stress.


Tips to Avoid Budget Overruns:

  • Set a clear and realistic budget before starting your renovation.
  • Include a buffer of around 10-15% for unexpected expenses (it’s almost guaranteed you’ll encounter something unexpected, especially in older homes).
  • Break down costs for each section of the renovation (plumbing, tiles, fixtures, etc.) so you can prioritise your spending.

Poor Planning and Layout Decisions

The layout of your bathroom is crucial in ensuring it’s both functional and visually appealing. A common mistake many first-timers make is not properly planning the layout, especially in terms of space utilisation.

Moving plumbing fixtures like toilets, showers, or sinks can be expensive, time-consuming, and result in costly delays.

Things to Consider:

  • Stick to the original plumbing layout where possible to avoid unnecessary costs.
  • Think about traffic flow—ensure there’s enough space to move comfortably between fixtures.
  • For smaller bathrooms, consider wall-hung fixtures or clever storage solutions to maximise space.

 Ignoring Measurements and Scale

It might seem simple, but incorrect measurements are a major cause of frustration and delays. First-time renovators often make the mistake of not double-checking dimensions before ordering tiles, cabinets, free standing bath, or vanities. What looks good in the showroom may not fit perfectly in your bathroom space, and you may face additional costs to make it work.

How to Avoid Measurement Mishaps:

  • Always take precise measurements of your bathroom before buying materials.
  • Double-check measurements for all major items like vanities, mirrors, and bathtubs to ensure they’ll fit.
  • Keep in mind the size of your entryway and any tight spaces for larger items.

Choosing the Wrong Colour Scheme

Choosing the right colours can set the mood for your bathroom, but it’s a mistake to select colours without considering factors like lighting and the size of the space. While dark, moody tones can be beautiful, they can make smaller bathrooms feel cramped and less inviting.



Colour Tips for Bathrooms:

  • For smaller bathrooms, opt for light and neutral tones such as whites, creams, and soft greys to create an illusion of space.
  • If you love bold colours, consider using them as accents—on walls, tiles, or accessories—while keeping larger areas neutral.
  • Remember that natural light plays a big role in how colours look; test paint samples in your bathroom before committing.

Skimping on Quality Materials

It’s tempting to go for cheaper materials, especially when sticking to a tight budget, but opting for low-quality materials can result in problems down the road. Water damage, peeling paint, and cracked tiles can all come from using inferior materials in the high-moisture environment of a bathroom.

Smart Material Choices:

  • Choose water-resistant materials for flooring and wall tiles (like porcelain or ceramic).
  • Invest in high-quality, durable fixtures (faucets, showerheads, etc.) that won’t rust or deteriorate quickly.
  • Use moisture-resistant paint specifically designed for bathrooms to prevent peeling or mildew.


Not Hiring the Right Professionals

While DIY projects can be fun, bathroom renovations require specialized skills. Attempting to tackle plumbing, electrical work, or tiling without the right experience can lead to costly mistakes and even safety issues. Many first-time renovators try to cut costs by doing everything themselves or hiring unqualified tradespeople.

How to Find the Right Professionals:

  • Always hire licensed and insured professionals for electrical and plumbing work. These are not areas to cut corners on!
  • Ask for recommendations or read online reviews for reputable contractors, tilers, and plumbers.
  • Get multiple quotes and compare to ensure you’re getting a fair price for quality work.
  • Homeone.com.au and Airtasker are good websites to find qualified professionals in your area.

Overlooking Storage Solutions

A bathroom can quickly feel cluttered if there’s not enough storage for everyday essentials like towels, toiletries, and cleaning products. One of the biggest mistakes in bathroom renovation is not planning for sufficient storage.

Storage Solutions to Maximise Space:

  • Install cabinets or shelves above the toilet or sink to store toiletries and towels.
  • Consider recessed shelving or vanity units with built-in storage to save space.
  • If you have toddlers, add child-friendly storage options to keep bathroom essentials safely out of reach.

    Zure Waverton Wall Hung Curve Vanity Matte White Side Drawing

Forgetting About Ventilation

Proper ventilation is often overlooked, but it’s crucial in a bathroom. Without adequate ventilation, your bathroom can quickly become damp, leading to mould growth, damage to walls, mirror cabinet, vanities and creating an uncomfortable atmosphere.

Ventilation Tips:

  • Install an exhaust fan to help remove excess moisture from the air.
  • Ensure the fan is the correct size for your bathroom; it should exchange the air in the room at least 8 times per hour.
  • If your bathroom has a window, open it regularly to help with airflow.

Not Planning for Family Needs

If you have young children or plan to in the future, think about designing your bathroom with their needs in mind. Safety is a key consideration, so ensure that features such as non-slip flooring and rounded edges on counters are in place.

Family-Friendly Renovation Tips:

  • Choose slip-resistant flooring materials to avoid accidents.
  • Consider installing a bathtub with easy access, especially if you have toddlers.
  • Think about water-saving fixtures, such as low-flow toilets and showerheads, to promote sustainability.

Not Allowing Enough Time

Renovating a bathroom, especially if it’s your first time, often takes longer than you expect. It’s easy to underestimate how long each phase of the renovation will take, from demolition to installation and finishing touches.

Time Management Tips:

  • Create a realistic timeline for your renovation, factoring in all stages of the project, including items to be dispatched, packed, delivered, and checked. It is crucial to allow time for replacement items, in case your products arrive damaged or present quality issues.
  • Allow some flexibility for unexpected delays or problems that may arise.
  • Consider hiring professionals who can work more efficiently and speed up the process.

Not Having Enough Knowledge About What You Are Buying and Not Using the Correct Terminology

One of the most common mistakes first-time renovators make is not fully understanding the products they’re purchasing or using incorrect terminology when discussing fixtures and fittings.

Terms like "tap hole," "waste hole," "wall mixer," "vanity," "undermount," and "backlit" might sound confusing if you’re unfamiliar with the technical side of bathroom renovations.

For example, understanding the difference between a 10 o'clock, 12 o'clock, and 2 o'clock tap hole position is essential when choosing basins and taps to ensure proper functionality and aesthetics.

Without this knowledge, you could end up with items that don’t fit or work as intended, leading to costly mistakes. To avoid this, take the time to research the terms and ask the right questions when shopping for fixtures. Our Zure is ready to answer your enquiries. 


Whether it's selecting the right vanity style (undermount or above counter) or ensuring you’re choosing the appropriate waste hole position for your taps, getting familiar with the correct terminology will save you time, money, and headaches down the line.

 Don’t hesitate to ask your suppliers or contractors to explain terms or guide you in choosing the right pieces for your bathroom renovation.

Bathroom renovations can be overwhelming for first-time homeowners, but with careful planning, realistic budgeting, and a focus on quality, you can avoid the common mistakes many renovators make.

Take your time, do thorough research, and make sure to hire the right professionals for the job.


With these tips in mind, your bathroom renovation will be a success, and you’ll enjoy the results for years to come.

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