Top 10 bathroom renovation mistakes
The expensive errors homeowners make — and how to avoid them.
At a glance
Quick Checklist
Key points at a glance
- 1Get proper quotes, not guesstimates
- 2Don't choose the cheapest option blindly
- 3Plan storage before finalising layout
- 4Check water pressure before buying products
- 5Don't skip waterproofing in wet areas
- 6Allow proper drying times
- 7Plan for ventilation
- 8Keep contingency budget
Questions to ask your installer
Take these to your next conversation with your fitter
- 1What mistakes do you see homeowners make most often?
- 2Is there anything about my plan that concerns you?
- 3What would you do differently if this was your bathroom?
- 4Are there any red flags in the products I've chosen?
- 5What contingency would you recommend for this project?
- 6How can I make this project easier for both of us?
💡 Tip: A good installer will welcome these questions. If they dismiss them, that's a red flag.
💡Myth vs Reality
Common Myth
"Experienced homeowners don't make mistakes"
The Reality
Even second or third bathroom renovations can go wrong. Every project has unique challenges.
Common Myth
"Mistakes are always obvious at the time"
The Reality
Many mistakes only become apparent months or years later. That's why planning matters.
What to look for
- •Mistake 1: Choosing the cheapest quote without checking what's included
- •Mistake 2: Not measuring doorframes and access for product delivery
- •Mistake 3: Ordering products before confirming drain and waste positions
- •Mistake 4: Skipping waterproofing/tanking in shower and bath areas
- •Mistake 5: Ignoring water pressure when choosing showers and taps
- •Mistake 6: Underestimating the importance of ventilation
- •Mistake 7: Not planning enough storage in the new design
- •Mistake 8: Rushing the project and skipping drying times
- •Mistake 9: Mixing brassware finishes from different suppliers
- •Mistake 10: Having no contingency budget for hidden issues
Common mistakes
- •Choosing the cheapest quote without checking what's included in the scope
- •Making changes mid-project that add time and cost
- •Not communicating clearly with your installer about expectations
- •Choosing products based on photos without seeing them in person
Quality considerations
- •Learning from others' mistakes is free
- •Good planning prevents most expensive errors
- •Clear communication prevents misunderstandings
- •Quality products and installation last decades
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This guide is written to help you make informed decisions, not to sell you anything. Always discuss your specific situation with a qualified installer.