--- title: "Wet Room Installation Bethnal Green & East London | From £6,500 · 10-Yr Tank" description: "Designer wet room installation in Bethnal Green & East London. Full tanking, linear drainage, underfloor heating. From £6,500 with 10-year waterproofing warranty. Call 07377 788881." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://mamoss.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Services", "item": "https://mamoss.co.uk/services" }, { "@type": "ListItem", "position": 3, "name": "Wet Room Installation" } ] }, { "@context": "https://schema.org", "@type": "Organization", "@id": "https://mamoss.co.uk/#organization", "name": "MAMOSS", "legalName": "MAMOSS Ltd", "url": "https://mamoss.co.uk", "logo": "https://mamoss.co.uk/favicon.png", "telephone": "+447377788881", "email": "info@mamoss.co.uk", "address": { "@type": "PostalAddress", "streetAddress": "Unit C, 279 Bethnal Green Road", "addressLocality": "London", "addressRegion": "Greater London", "postalCode": "E2 6AH", "addressCountry": "GB" }, "sameAs": [ "https://maps.app.goo.gl/nV5LufZRVVr9jDDg8" ] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "https://mamoss.co.uk/#website", "name": "MAMOSS", "url": "https://mamoss.co.uk", "publisher": { "@id": "https://mamoss.co.uk/#organization" } }, { "@context": "https://schema.org", "@type": "HVACBusiness", "@id": "https://mamoss.co.uk/#localbusiness", "name": "MAMOSS", "legalName": "MAMOSS Ltd", "description": "Heating, plumbing, electrical and drainage contractor serving East London and Greater London. 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A typical family wet room (5-6 m²) is £8,500-£11,000. Master en-suites and luxury specifications run £12,000-£18,000+. All prices include strip-out, materials, labour, skip and certificates — no surprise extras." } }, { "@type": "Question", "name": "How long does a wet room installation take?", "acceptedAnswer": { "@type": "Answer", "text": "Typically 10-14 working days from strip-out to handover. Allow an additional 1-2 weeks for design, ordering and material delivery before work starts on site." } }, { "@type": "Question", "name": "Do I need planning permission for a wet room?", "acceptedAnswer": { "@type": "Answer", "text": "In existing dwellings, no — wet room conversions are normally permitted development. Building Control may apply if you are adding new soil pipework or converting a non-bathroom space. We handle any consents needed as part of the project." } }, { "@type": "Question", "name": "Will a wet room leak?", "acceptedAnswer": { "@type": "Answer", "text": "Not when correctly tanked. We use manufacturer-warranted tanking systems with full wall coverage to 1.8m and 10-year waterproofing warranty. Modern tanking is far more reliable than traditional bathroom tray-and-screen installations." } }, { "@type": "Question", "name": "Can a wet room be installed upstairs?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — most of our installs are in upper-floor London properties. Subfloor reinforcement and correct tanking are essential for upstairs installs and we always include these in the quoted spec." } }, { "@type": "Question", "name": "Will I lose use of my bathroom for the whole 14 days?", "acceptedAnswer": { "@type": "Answer", "text": "Yes for the room being converted. If it is your only bathroom, we recommend access to a temporary alternative (a friend nearby, gym membership, or a rented portable WC for short periods)." } }, { "@type": "Question", "name": "Do you provide a design service?", "acceptedAnswer": { "@type": "Answer", "text": "Yes — free initial survey and 3D visualisation included on all enquiries. We discuss layout options, drainage position, tile and brassware choices, and produce a detailed schedule of works." } }, { "@type": "Question", "name": "Do you cover Hackney, Shoreditch and Stratford?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Wet room installation covers Bethnal Green, Shoreditch, Hoxton, Hackney, Stratford, plus West, South and South-West London." } } ] } ] --- [ Limited Offer: New A-rated Boiler Installed from £1,950 — 10-yr warranty included Claim Now ](/contact) [![MAMOSS – Multi-Trade Property Services London](/assets/logo-CrEg7qQf.png)](/) [Home](/)[About](/about) Services Areas We Cover [Our Work](/our-work)[Reviews](/reviews)[Contact](/contact) [020 3432 2349](tel:02034322349)[07377 788881](tel:07377788881) [Request Estimate](/contact) - [Home](/) - [Services](/services) - Wet Room Installation ![Modern wet room with large format porcelain tiles and walk-in shower in a London home](/assets/hero-wet-room-aYH6uS4x.jpg) Wet Room Design & Installation # Wet Room Installation in Bethnal Green & East London Transform a small bathroom into a modern, accessible, fully-tanked wet room. Linear drainage, underfloor heating, large-format porcelain — installed by one team from design to handover. From £6,500 with 10-year waterproofing warranty. [Book a Design Survey](/contact)[07377 788881](tel:07377788881) ★ From £6,500 · 10-year tanking warranty · Single team end-to-end · 10-14 day install Last updated: 29 April 2026 £6,500 From 10-14 Days Build 10-Yr Tanking Warranty 1 Team End-to-End Free Design Survey ## What Is a Wet Room & Why Choose One Over a Traditional Bathroom? A wet room is a fully waterproofed bathroom where the shower area is open to the rest of the room — no shower tray, no enclosure, just a tiled floor that slopes gently to a linear or square drain. The entire floor and lower walls are 'tanked' with a continuous waterproof membrane before tiling, so water cannot escape into the structure regardless of where it lands. Wet rooms are now the most popular bathroom format for London properties for three reasons: they make small spaces feel dramatically larger by removing the visual clutter of trays and screens, they are fully accessible for older users or anyone with mobility needs, and they add measurable value to a property — typically 4-6% on resale value for a well-executed wet room versus a tired conventional bathroom. MAMOSS designs and installs wet rooms across Bethnal Green and East London — from compact en-suites to full master-suite renovations. Every job is delivered by a single team (no third-party tilers, plumbers or electricians) and includes a 10-year warranty on the waterproof tanking system. Typical installation takes 10-14 working days from strip-out to handover. - Free initial design survey and 3D visualisation - Full tanking with manufacturer-approved membrane system - Linear or square drainage to your design preference - Underfloor heating (electric matting) included - Large-format porcelain or natural stone tiling - Concealed thermostatic mixer and rainfall shower head - Wall-hung WC and basin (where layout permits) - 10-year waterproofing warranty + 2-year workmanship ## Common Wet Room Mistakes (And How We Avoid Them) Wet rooms get a bad reputation when poorly installed. The horror stories — water leaking into the room below, tiles lifting, drainage backing up — are almost always traceable to one of the following errors: ### Inadequate Tanking Bargain installers use thin liquid membranes or skip the wall coverage. We use a manufacturer-warranted tanking system (Schluter, Mapei or Aquaproof) with full wall coverage to 1.8m and lap joints sealed at every junction. ### Wrong Floor Falls A wet room floor needs precise gradient towards the drain — typically 1:80 to 1:40. Too shallow and water pools; too steep and it feels uncomfortable underfoot. We use laser levels and pre-formed sloped trays to guarantee correct falls. ### Cheap Drainage Budget linear drains clog easily, are difficult to clean, and have inadequate flow rates for a typical shower. We specify only manufacturer-warranted drains (Wedi, Geberit, McAlpine) sized correctly for the shower flow rate. ### Tile Choice Mistakes Glossy or polished tiles in a wet room are dangerous when wet. Mosaic-only floors look great but have too many grout lines that fail. We use rectified large-format porcelain with R10/R11 slip rating on the floor. ### No Underfloor Heating Without underfloor heating, a wet room floor stays wet far longer between uses — leading to grout staining, mould risk and an unpleasant chilly feel underfoot. We include electric underfloor heating as standard. ### Subfloor Inadequately Reinforced Existing timber subfloors in older London properties often flex too much for tile and tanking. We always reinforce or overboard with cement board to manufacturer specification before tanking. Our Process ## Our Wet Room Installation Process 1 ### Free Design Survey We visit your property, measure up, discuss layout options, drainage position, tile preferences and budget. We produce a 3D visualisation, fixed-price quotation and detailed schedule of works within 5 working days. 2 ### Strip-Out & Subfloor Prep On day 1-2 we strip the existing bathroom completely, repair or reinforce the subfloor, and prepare for new plumbing and electrical first-fix. Skips are arranged on your behalf. 3 ### First-Fix Plumbing & Electrics Days 3-4: hot and cold supply, waste pipes, underfloor heating cabling, lighting and ventilation circuits installed. All work signed off by Gas Safe and NICEIC-standard electricians. 4 ### Tanking & Drainage Days 5-6: pre-formed sloped substrate fitted, drain set to correct level, then full tanking system applied — floor and walls to 1.8m. Tanking is allowed to fully cure before tiling. 5 ### Tiling & Grouting Days 7-10: large-format porcelain tiling to floor and walls, expansion joints in correct positions, premium epoxy grout in shower zone for stain resistance, silicone movement joints. 6 ### Second-Fix & Handover Days 11-14: thermostatic shower fitted, basin and WC installed, mirror and accessories fitted, everything tested and snagged. Final clean and handover with manufacturer warranties and aftercare guide. ## The Benefits of a MAMOSS Wet Room ### Single Team, Single Accountability All trades — strip-out, plumbing, electrics, tanking, tiling, decorating — provided by one team. No subcontractor blame games when something needs a snag visit. ### 10-Year Tanking Warranty Manufacturer-warranted tanking system (Schluter, Mapei or Aquaproof) backed by 10-year waterproofing guarantee — the most common wet room failure mode covered. ### Fixed Price, Fixed Timeline Quote and schedule fixed before work starts. The only variation is if you change spec mid-build — and we always agree variations in writing before extra cost is incurred. ### Adds Property Value A well-executed wet room adds 4-6% to property resale value in London — meaning the installation often pays for itself on the next sale. ### Accessible Design Level-access showers benefit older homeowners now and futureproof the property for resale to families with multi-generational use needs. ### Underfloor Heating Standard Electric underfloor heating included as standard — fast to warm, dry the floor between uses, and adds genuine luxury feel. ## Wet Room Installation in Detail: Spec, Timeline & Pricing Pricing depends primarily on size, tile choice and sanitaryware spec. A compact en-suite wet room (3-4 m²) starts at £6,500 with mid-spec tiles and brassware. A typical 5-6 m² family wet room is £8,500-£11,000. Larger master-suite installations or natural stone specs run £12,000-£18,000+. The price always includes everything — strip-out, materials, labour, skip, certificates — with no surprise extras. Our standard specification includes: Schluter Kerdi or equivalent tanking system, Wedi linear drain or Geberit point drain, Warmup or Devi electric underfloor heating, large-format rectified porcelain floor and wall tiles (R10/R11 slip rating on floor), Hansgrohe or equivalent thermostatic mixer with rainfall and handheld heads, wall-hung Geberit Duofix WC frame, ceramic basin on wall-hung vanity, anti-fog LED mirror, and chrome heated towel rail. Upgrade options include: natural stone tiling (limestone, marble, slate) — add £1,500-£3,000; recessed niche lighting — £450; smart shower controls (Bluetooth/app) — £750; freestanding bath addition (where space allows) — £1,800; mood lighting and ceiling speakers — £600; bespoke vanity unit — quote on choice. Installation timeline is typically 10-14 working days from strip-out to handover for a standard wet room. Allow an additional 1-2 weeks for design and ordering of materials before work starts. We never start a job until all materials are on-site, eliminating the most common cause of bathroom-renovation delays. Building regulations: most wet room conversions in existing dwellings do not require a building control application, but we handle anything that does — particularly if you are converting a non-bathroom space (e.g. walk-in wardrobe to en-suite) or adding new soil pipework. Our design survey identifies any consents needed. - Compact en-suite (3-4 m²) — from £6,500 - Family wet room (5-6 m²) — £8,500-£11,000 - Master en-suite (7-8 m²) — £11,000-£14,000 - Luxury / natural stone spec — £14,000-£18,000+ - Underfloor heating included as standard - 10-year tanking warranty + 2-year workmanship - Fixed-price, fixed-timeline guarantee - Free 3D design visualisation included Explore more of our services: [Home](/)• [Gas & Heating](/services/central-heating-engineer)• [Plumbing Services](/services/plumber)• [Electrical Services](/services/electrician)• [Emergency Plumber](/services/emergency-plumber)• [Areas We Cover](/areas)• [Get a Free Estimate](/contact) FAQ ## Frequently Asked Questions ### How much does a wet room cost in London? ### How long does a wet room installation take? ### Do I need planning permission for a wet room? ### Will a wet room leak? ### Can a wet room be installed upstairs? ### Will I lose use of my bathroom for the whole 14 days? ### Do you provide a design service? ### Do you cover Hackney, Shoreditch and Stratford? Part of [Bathroom Renovator →](/bathroom-renovator) See all bathroom renovator services we provide. ### Related Reading & Guides [ #### Bathroom Installation Full bathroom renovation and design. ](/services/bathroom-installation)[ #### Bathroom Tiling Specialist large-format and mosaic tiling. ](/services/bathroom-tiling)[ #### Plumber Plumbing first-fix and second-fix services. ](/services/plumber) ### Available Across London [Bethnal Green](/areas/bethnal-green)[Shoreditch](/areas/shoreditch)[Hackney](/areas/hackney)[Stratford](/areas/stratford)[Hoxton](/areas/hoxton)[East London](/areas/east-london)[All Areas →](/areas) ![MAMOSS property services team ready to help across London](/assets/cta-bg-BCYUu3i9.jpg) ## Ready to Solve Your Property Problem? Speak to a qualified engineer today. No obligation estimates, transparent pricing, and rapid response across London. 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