Marble Bathroom Design & Installation – London

Client: Private Homeowner
Location: Central London
Sector: Residential | Luxury Bathroom Fit-Out
Service Type: Bathroom Design | Marble Installation | Underfloor Heating | High-End Fixtures
Duration: 6 Weeks
Completion Date: 2025

Project Overview

Bigness Group was commissioned to deliver a bespoke marble bathroom installation in Central London — combining craftsmanship, precision, and timeless elegance.
The client envisioned a spa-style bathroom with full marble cladding, underfloor heating, and modern concealed fixtures, designed for both functionality and luxury.

Our team managed every stage, from structural preparation and waterproofing to the final polish, ensuring every surface reflected perfection.

Project Objectives

  • Create a premium bathroom space with seamless marble finishes.
  • Integrate underfloor heating and advanced waterproofing systems.
  • Install luxury fixtures with concealed pipework for a clean aesthetic.
  • Deliver a long-lasting, low-maintenance design with a timeless look.

Scope of Works

  • Structural preparation and full wet-room conversion.
  • Installation of Schluter-KERDI waterproofing system.
  • Underfloor heating setup with digital thermostatic controls.
  • Marble floor and wall cladding installation with precision alignment.
  • Recessed lighting, ceiling spotlights, and chrome fixtures installation.
  • Final polishing, sealing, and inspection for water resistance and durability.

Challenges & Solutions

Challenge 1 – Subfloor & Drainage Integration
Ensuring level alignment for marble flooring with built-in shower falls.
Solution: Applied a custom-formed Schluter tray and laser-checked slope for perfect drainage.

Challenge 2 – Marble Weight & Stability
The natural marble slabs required structural reinforcement.
Solution: Installed reinforced boarding and mechanical fixings for long-term support.

Challenge 3 – Moisture Control
Marble is naturally porous and required precise waterproofing.
Solution: Multi-layer waterproof membrane applied with full perimeter sealing.

Results

✅ Elegant marble bathroom with flawless finishes and clean lines.
✅ Energy-efficient underfloor heating and moisture-proof design.
✅ Modern, minimal aesthetic with premium fixtures.
✅ Increased property value and luxury appeal.

Why Choose Bigness

  • Expertise in luxury bathroom design and installation.
  • Certified professionals for waterproofing and underfloor heating.
  • Premium materials sourced from trusted suppliers.
  • Attention to detail and a finish built to last.