Bathroom Renovation Cost in Cardiff: 2026 Price Guide
08 Aug 2026
| Scope | Typical cost |
|---|---|
| Like-for-like refresh | £3,200-£5,600 |
| Full refit, layout changed | £5,600-£9,300 |
| High-spec refit | £9,300-£14,000+ |
Many of Cardiff's Victorian terraces across Cathays, Roath and Grangetown had bathrooms retrofitted into a former bedroom well after the house was originally built for coal-trade workers, which explains why so many are an awkward shape relative to the rest of the property.
What causes the surprises
Original lath-and-plaster ceilings below a retrofitted bathroom slow down pipework installation, and older cast iron soil stacks in unmodernised terraces occasionally need replacing as part of a refit even where that wasn't the original brief.
Getting comparable quotes
Ask each builder to quote against the same fixed spec sheet rather than a general description, since Cardiff's bathroom stock varies enough in age and layout that a loosely specified "full refit" quote can mean genuinely different jobs.
Ready to get quotes? Post your job on builderfinder.uk and hear from vetted, reviewed builders who cover Cardiff - it's free, and your details stay private until you accept one.
Builders in Cardiff
See all builders in Cardiff →Find a trade in Cardiff
Frequently asked questions
How much does a bathroom renovation cost in Cardiff?
A like-for-like refresh runs £3,200-£5,600, a full refit with layout changes £5,600-£9,300, and a high-spec refit £9,300-£14,000+.
Why might a Cardiff bathroom refit cost more than quoted?
Original lath-and-plaster ceilings and older cast iron soil stacks in unmodernised terraces can add unexpected work once a refit starts.
Ready to get started?