Bespoke Wet Room Design in London
High-performance wet rooms engineered for London’s finest homes. From advanced tanking systems to seamless natural stone finishes, we create sanctuary spaces with uncompromising structural integrity.
The London Authority in Bespoke Wet Rooms
A true luxury wet room is an exercise in invisible engineering. Beyond the aesthetic of flush thresholds and continuous flooring lies a complex system of multi-layered waterproofing and precision drainage. Every KBB Master wet room is built on a foundation of “bulletproof” tanking, ensuring your investment is as durable as it is beautiful.
Whether we are converting a compact Chelsea ensuite or designing a grand master wet room in Hampstead, we utilize industry-leading materials from Lusso and Mandarin Stone. Our process eliminates the clutter of traditional trays, creating a seamless, architectural flow that redefines the modern bathing experience.
recent Wet Room projects
View Project 
View Project 
View Project
How We Work
- 01
Consultation
Technical £195 site survey, spatial architecture and design brief. We audit your home, architect your vision, and curate a precise, high-end investment roadmap.
- 02
Design & Sourcing
3D rendering, material selection from Lusso, Mandarin Stone and premium suppliers. Every finish, fixture and fitting is specified to your approval.
- 03
Installation
Fully managed turnkey construction with all trades in-house. Weekly progress updates and a dedicated project manager from start to handover.
The Technical Anatomy of a
KBB Master Wet Room
Frequently Asked Questions
Are wet rooms 100% waterproof for upstairs London flats?
Yes. Our proprietary tanking process involves a multi-stage liquid membrane and reinforced joint sealing. This creates a “sealed box” environment that is entirely impervious to water, making them perfectly safe for any floor level in period townhouses or modern apartments.
How much does a luxury wet room installation cost in London?
Bespoke wet rooms typically range from £15,000 to £30,000+. This investment accounts for the advanced structural prep, specialized drainage systems, and premium large-format tiling required to achieve a flawless, tray-less finish.
Can I install a wet room in a small London ensuite?
Absolutely. Wet rooms are the ultimate solution for small spaces. By removing the physical barrier of a shower tray, we open up the floor plan, making compact rooms feel significantly larger while increasing the overall value of your property.
Is underfloor heating necessary for a wet room?
While not strictly required, we highly recommend it. Underfloor heating provides ambient warmth and, crucially, helps surface water evaporate more quickly, keeping your natural stone or porcelain tiles dry and safe shortly after use.
Areas of Operation
Serving discerning homeowners across Central and Greater London.