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Renovating your bathroom sounds exciting until something goes wrong. One small mistake can turn into a big, expensive problem. Whether you’re doing a simple update or a full rip-out, there are a few things most people get wrong.
What We Do at Omnis Developments
At Omnis, we’ve worked on all kinds of bathrooms—from small budget jobs to full-on makeovers. Here’s what we do:
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Full bathroom installations (toilets, sinks, showers, you name it)
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Fixing leaks, plumbing upgrades, tiling, and electrics
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Sorting out bad layouts and fixing mistakes from rushed jobs
If it’s bathroom-related, we’ve probably seen it—and fixed it.
Common Mistakes People Make
1. Not Thinking the Layout Through
A big mistake people make is squeezing things in where they don’t fit. Like:
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Putting a toilet too close to the wall
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Trying to fit a huge bath in a tiny room
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Forgetting you need space to open doors and drawers
What to do: Measure everything twice. Make sure you can move around without banging your knees. Ask your fitter for honest advice—don’t just copy something you saw online.
2. Underestimating the Budget
A lot of folks start a bathroom job thinking it’ll cost £2,000. By the time it’s done, they’ve spent double.
Why? Because things come up—leaks, rotten floorboards, hidden pipes. And let’s be honest: we all add extra bits once we get going.
What to do:
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Set a clear budget.
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Add a buffer—about 15–20% more just in case.
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Don’t buy the cheapest fittings—they often cost more later when they break.
3. Forgetting Ventilation
You might think a window’s enough. But in winter, nobody opens it—and that’s when mould shows up.
What to do:
Install a decent extractor fan. It helps avoid damp walls and musty smells.
4. Picking the Wrong Materials
Fancy tiles and trendy taps might look great online—but not everything holds up in a real home.
Common mistakes:
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Slippery floor tiles
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Paint that peels after a few months
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Cheap taps that go stiff or leak
What to do:
Stick to materials that are waterproof, easy to clean, and made to last. Ask your builder what works best in busy homes.
5. Cramming Too Much In
Trying to put a bath, separate shower, big vanity, and storage in a small bathroom? It won’t work.
What to do:
Be realistic. Go for a layout that feels open—even if it means picking smaller fittings or skipping one feature.
6. No Storage Plan
This one’s easy to miss. You finish the job, then realise there’s nowhere for your toothbrush, towels, or cleaning bits.
What to do:
Think about storage from the start. You’ll thank yourself later. Consider vanity units, wall cupboards, or built-in shelving.
7. Moving Things for No Good Reason
Want to move the toilet to the other side of the room? That means extra pipework, digging into the floor, maybe even moving soil pipes.
It costs a lot. Sometimes thousands more.
What to do:
If your layout works, keep the plumbing where it is. Move things only if there’s a real reason.
8. Trying to DIY the Whole Thing
Some bits you might be able to do yourself—like painting or assembling flat-pack furniture. But plumbing and electrics? That’s a different story.
We’ve seen leaks, dodgy wiring, and dangerous work that had to be ripped out.
What to do:
Stick to what you know. Leave the rest to qualified tradespeople. It’s safer and ends up cheaper in the long run.
9. Rushing the Job
It’s normal to want it done fast. But rushing leads to mistakes—poor tiling, leaks, and corners being cut.
What to do:
Give it proper time. A decent bathroom takes 1–3 weeks depending on the job. Better to wait than redo it later.
10. Thinking Too Short-Term
It’s easy to follow trends, but what happens when they go out of style?
What to do:
Keep the basics simple and classic. Add trendy colours with paint, towels, or mirrors. You can swap those out later without a full redo.
What a Good Bathroom Job Looks Like
A proper bathroom job should give you:
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A layout that works for your family
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Fixtures that hold up over time
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A clean, damp-free finish
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Easy-to-clean surfaces
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Enough storage for your stuff
And no headaches from bad pipework, electrical faults, or leaks.
Why People Choose Omnis
We’re a Liverpool-based team, and we don’t mess people around. Here’s what you get when you work with us:
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Honest quotes—no hidden extras
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Clear timelines—we show up when we say we will
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One team that handles plumbing, electrics, tiling and fitting
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Advice that saves you time and money
No flashy talk. Just quality work that’s built to last.
Summary
A bathroom renovation should make life easier, not harder. But skipping the planning or trying to cut corners can leave you cold, wet, or out of pocket. Take your time. Ask questions. And work with people who do it right the first time.
Frequently Asked Questions
1. How much does a bathroom renovation usually cost?
Most jobs fall between £3,000 and £12,000 depending on the size, fittings, and any plumbing or electrical work needed.
2. How long will the renovation take?
On average, 1–3 weeks. It depends on the size of the job and if you’re moving plumbing or waiting on parts.
3. Do I need to move my toilet or sink?
Not unless there’s a good reason. Moving them costs more, especially if the pipework needs changing.
4. Can I use my bathroom during the renovation?
Usually not—especially if it’s your only one. We’ll always let you know in advance and try to keep things running smoothly.
5. Do I need to supply my own tiles and fixtures?
You can if you want, but we’re happy to recommend reliable options or take care of it all for you.
6. What if I find mould or leaks during the work?
We’ll flag anything like that straight away and give you honest options for fixing it properly.
7. Is it cheaper to do parts of the job myself?
Sometimes, but only if you’re confident. Plumbing, electrics, and tiling are best left to professionals to avoid costly mistakes.
8. How do I know what layout works best?
We’ll help plan a layout that fits your space and needs—making sure you’ve got room to move and store things.
9. What kind of ventilation do I need?
An extractor fan is ideal—even if you have a window. It helps prevent damp, mould, and bad smells.
10. What should I avoid when renovating my bathroom?
Rushing the job, skimping on materials, or choosing style over function usually lead to regrets. Plan ahead and think long-term.