Cloakroom Installation in London – Tips, Costs & Local Installer Recommendations

nicholasshaw

New member
Feb 23, 2026
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Hi all, I’m thinking about adding or renovating a cloakroom/WC in my London home and wanted to kick off a thread for advice and recommendations.

A few things I’ve learned so far that might help others in the same boat:
  • Typical Costs (London): Installing a basic cloakroom toilet and basin often ranges from around £2,000 to £4,000 in London, but the price can rise with higher-end fixtures, finishes and any extra plumbing or ventilation work.
  • What’s Usually Included: Standard installations involve removing any old fittings, installing the new WC and basin, basic tiling or wall finishes, flooring, and essential plumbing and electrical work like an extractor fan.
  • No Planning Permission Needed: In most cases, putting in a downstairs toilet/cloakroom doesn’t require planning permission unless it’s part of a bigger structural change — but you do need to follow building regulations.