A bathroom renovation using shower panels can feel like a straightforward project—rip out the old, install the new, and enjoy the result.

But in reality, the order you follow is everything.

Get it right, and your renovation runs smoothly, stays on budget, and delivers a finish that lasts for years. Get it wrong, and you’ll quickly run into delays, unexpected costs, and decisions you wish you’d made earlier.

It’s one of the biggest reasons homeowners end up frustrated—something we explored in our guide to the biggest regrets people have after bathroom renovations.

In this blog, we’re going to break down:

• The correct order of a bathroom renovation

• Where most people go wrong

• And how to make smarter decisions earlier—so you don’t pay for them later

Why the Order of a Bathroom Renovation Matters More Than You Think (Expanded)

Most homeowners think a bathroom renovation is a simple, linear process: remove the old, install the new, and enjoy the finished space. In reality, it’s a complex sequence where every step depends on the one before it.

Getting the order right isn’t just about convenience—it affects cost, time, functionality, and even the longevity of your bathroom. Mistakes early in the process can ripple through the project, causing delays, budget overruns, and compromises in the finished look.

For example, choosing wall finishes too late can mean additional preparation work, extra labour, or even redoing plumbing. Ignoring how the layout affects storage and accessibility can leave you with a beautiful bathroom that’s impractical for everyday use. Even seemingly small choices, like where a light switch or towel rail goes, can create friction if they’re not planned from the start.

When done correctly, the right order ensures:

• Trades know exactly what to do at each stage

• Materials are installed efficiently, reducing waste

• Your bathroom is functional, stylish, and durable

• Hidden issues—like damp, uneven surfaces, or poor pipework—are dealt with before they become major problems

This is why the planning stage is absolutely crucial—and why so many homeowners later regret rushing this part. It also links directly to our pillar content, where shower panels work best (and where they don’t), because material choices need to align with the renovation sequence to avoid costly mistakes.

Step 1: Planning and Layout (Where Most Mistakes Start)

Before anything is removed, this is the stage that defines the entire project. Every decision you make here will influence cost, timeline, and final finish.

This isn’t just about choosing a style—it’s about creating a layout that actually works in real life.

At this stage, you should be locking in:

• The position of your shower, bath, toilet, and basin

• Storage requirements (vanity units, recesses, shelving)

• Wall finishes and materials

• Lighting placement and ventilation

It’s also the point where you need to think practically:

• How will doors open?

• Is there enough clearance between fixtures?

• Are you maximising the space available?

Where People Go Wrong

Most homeowners rush this phase or treat it as purely visual.

They pick shower panels, colours, and fittings without fully understanding how everything connects behind the scenes. This often leads to:

• Layout compromises later on

• Plumbing that doesn’t align with the design

• Missed opportunities to improve space and usability

In reality, this is the most important stage of the entire renovation—and the one that causes the most long-term regret if done poorly.

Step 2: Strip Out and Preparation

Once the plan is locked in, the existing bathroom is completely removed.

This isn’t just demolition—it’s the first real opportunity to assess what you’re working with.

During this stage:

• All fixtures and fittings are removed

• Existing wall coverings are stripped back

• Floors are exposed

• The room is taken back to a workable base

What to Watch For

This is where hidden problems tend to surface, such as:

• Damp or water damage

• Uneven walls and floors

• Poor workmanship from previous installations

These issues can’t be ignored—they need to be addressed before moving forward.

Many projects start to exceed budget here, not because something went wrong, but because there was no allowance made for what might be uncovered.

Step 3: First Fix Plumbing and Electrics

This stage is where the structure of your new bathroom begins to take shape—although you won’t see much of it once it’s finished.

It involves:

• Installing new pipework for hot and cold water

• Positioning waste pipes and drainage

• Running electrical wiring for lighting, fans, and features

Everything is set based on the layout decisions made earlier.

Why This Stage Is Critical

Once first fix is complete, changes become significantly more expensive and disruptive.

If you decide to move a shower, reposition a basin, or change wall finishes at this point, it can mean:

• Reworking pipe routes

• Opening up walls again

• Delaying the entire project

This is why early planning is so important—because by this stage, your decisions need to be locked in.

Step 4: Wall and Floor Preparation

Before any visible finishes are installed, the surfaces need to be properly prepared.

This stage often gets overlooked, but it has a direct impact on how your bathroom performs over time.

Preparation may include:

• Installing backer boards or wall panels

• Waterproofing wet areas

• Levelling floors and correcting uneven surfaces

Where Problems Happen

Rushing this stage or cutting corners can lead to serious issues later, such as:

• Cracked tiles or movement in wall coverings

• Poor alignment of panels or fixtures

• Water ingress and long-term damage

The quality of what sits behind your finishes is just as important as what you see on the surface.

Step 5: Installing Wall Finishes

This is the stage where your bathroom starts to come to life visually.

Your chosen wall finish—whether tiles or shower panels—is installed, transforming the space from a construction site into something recognisable.

Why This Stage Matters More Than People Expect

Wall finishes don’t just affect appearance—they also impact:

• Installation time

• Labour costs

• Maintenance requirements

• Long-term durability

The Common Mistake

One of the biggest issues at this stage is late decision-making.

If materials haven’t been chosen in advance, it can lead to:

• Delays waiting for stock

• Increased labour costs due to changes

• A rushed or compromised finish

The best results always come from knowing exactly what’s being installed before this stage begins.

Step 6: Second Fix (Fixtures and Fittings)

With the structure complete and walls finished, the bathroom finally starts to come together.

This stage includes installing:

• Toilets and basins

• Baths or shower enclosures

• Taps, valves, and accessories

Everything is connected to the pipework installed earlier.

Where Issues Can Arise

If earlier stages weren’t completed correctly, problems tend to show up here.

This might include:

• Fixtures not aligning as expected

• Fittings feeling forced into place

• Visible inconsistencies in the finish

At this point, adjustments are possible—but they’re often time-consuming and costly.

Step 7: Finishing Touches and Testing

The final stage is all about refining the space and making sure everything works as it should.

This includes:

• Sealing joints and edges

• Painting and decorating

• Testing plumbing and electrics

• Final cleaning and inspection

Why This Stage Shouldn’t Be Rushed

It’s tempting to rush the final steps to get the bathroom finished, but this is where attention to detail really matters.

Proper sealing, alignment, and testing ensure:

• A clean, professional finish

• Long-term durability

• Fewer issues after completion

The Most Common Mistakes (And How to Avoid Them)

Across all stages of a renovation, certain mistakes consistently crop up. Here’s a more detailed look, along with practical advice to avoid them:

1. Making Decisions Too Late

Mistake: Many homeowners pick wall finishes, fittings, or layouts halfway through the renovation, thinking they can decide “on the day.” This often leads to:

• Delays while waiting for materials

• Increased labour costs for rework

• Compromised quality or aesthetics

How to Avoid:

• Lock in major decisions—layout, wall finishes, shower panels, flooring—before any demolition begins

• Double-check compatibility between finishes and structural elements (e.g., shower panels vs tiled walls)

• Refer back to your plan regularly to ensure nothing is changing mid-project

2. Underestimating Preparation

Mistake: People often focus on the visible part of the bathroom (tiles, panels, colours) and overlook the prep work behind the scenes. Skimping on prep can cause:

• Cracked tiles or misaligned panels

• Water ingress and damp issues

• Poor adhesion of wall panels

How to Avoid:

• Allow enough time for wall and floor prep, including waterproofing

• Inspect existing walls and floors carefully; correct unevenness before installation

• Work with trades who follow correct preparation protocols

3. Poor Planning Around Budget

Mistake: Budget overruns are one of the most common pain points. They usually happen because homeowners underestimate the cost of hidden work, upgrades, or changes.

How to Avoid:

• Include a contingency of 10–15% for unexpected issues

• Make decisions about expensive materials early

• Track all costs against a written plan and review it regularly

4. Not Thinking Long-Term

Mistake: A beautiful bathroom may look perfect at first, but poor long-term thinking leads to issues like:

• Surfaces that stain or scratch easily

• Fittings that wear out faster than expected

• Layouts that feel cramped or impractical after a few months

How to Avoid:

• Choose durable, low-maintenance materials (for example, high-quality shower panels instead of tiles in high-moisture zones)

• Consider how your lifestyle and family needs will evolve over time

• Think about access for cleaning and maintenance

5. Ignoring What Happens Behind the Scenes

Mistake: Many renovations fail because the hidden infrastructure isn’t considered—pipework, waste systems, and electrical wiring all affect the finished result.

How to Avoid:

• Ensure all trades follow the correct first-fix sequence

• Understand what wall finishes require in terms of support or waterproofing

• Link decisions on fixtures to the underlying structure (e.g., shower panel installation points)

How to Get It Right From the Start

A successful bathroom renovation isn’t just about picking beautiful tiles or a modern shower—it’s about making smart decisions at the right time. The earlier you plan, the fewer surprises you’ll encounter, and the smoother your project will run.

Here’s how to set yourself up for success from day one:

1. Plan Everything Upfront

Start with a clear vision and a detailed plan that covers:

• Layout – the position of your bath, shower, basin, and toilet should maximise space and usability

• Storage – think about shelves, cabinets, and recesses before you decide where fixtures go

• Lighting and ventilation – proper positioning now prevents problems later

• Wall and floor finishes – decide early between shower panels, tiles, or mixed finishes, as these impact installation and preparation

Taking time here prevents costly changes during installation and avoids regrets like awkward layouts or poor access to storage.

2. Understand the Installation Process

Knowing how each element is installed helps you make smarter material choices. For example:

• Shower panels require precise wall preparation and waterproofing but reduce tiling labour

• Tiles may need levelling, grout work, and waterproof membranes

• Electrical and plumbing positions must be confirmed before finishes are applied

By understanding the sequence, you can choose materials that suit your timeline, budget, and maintenance expectations.

3. Work With the Order, Not Against It

Each stage of the renovation builds on the last. Rushing ahead or skipping steps creates problems that are often expensive and time-consuming to fix.

• Start with planning and first-fix plumbing/electrics

• Prepare walls and floors carefully

• Only then move to finishes, fixtures, and fittings

Following the natural order keeps trades working efficiently, reduces mistakes, and ensures the final finish is precise.

4. Think Beyond Aesthetics

It’s easy to get caught up in style—patterned tiles, colour palettes, and luxury fittings—but durability and maintenance are just as important.

Consider:

• Moisture resistance – how will your walls cope in high-humidity areas?

• Cleaning and upkeep – panels or tiles that are hard to clean will frustrate you long-term

• Future-proofing – will your layout and fittings meet your family’s needs in 5–10 years?

The right balance between style and practicality ensures your bathroom looks great and functions well for years.

5. Plan for Contingencies

Even the best-planned renovation can throw up surprises. Damp patches, uneven floors, or missing materials are common.

• Always include a budget and time contingency

• Allow flexibility in your schedule for trades to adjust

• Inspect and approve work at each stage before moving on

Planning for the unexpected keeps stress low and ensures the project doesn’t derail.

In short: getting it right from the start means thinking ahead, understanding the process, and making decisions in the correct order. When you plan smart, your renovation will run smoothly, stay on budget, and give you a bathroom that looks and works exactly how you imagined.

Final Thoughts

A successful bathroom renovation isn’t just about choosing the right products—it’s about following the right process.

The order matters. The timing matters. And the decisions you make at the beginning will shape the entire outcome.

By understanding how everything fits together, you can avoid the common pitfalls, stay in control of your budget, and create a bathroom that not only looks great—but lasts. don’t just take our word on this, everything we’ve said can be checked on mybuilder.