Plumber installing a new wall-hung toilet with concealed cistern in a London bathroom
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    Toilet Replacement & Installation London

    Replacing a toilet properly means more than swapping the pan. Our plumbers fit close-coupled, back-to-wall, wall-hung and rimless WCs across London, adapting the soil connection, isolating and re-plumbing the supply, sealing the pan to the floor and leaving the bathroom clean. Old suites are removed and disposed of responsibly.

    24/7 emergency callout across the M25

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    Gas · Boilers · Heating · HVAC

    What our toilet replacement & installation covers in London

    • Close-coupled, back-to-wall, wall-hung and rimless WCs
    • Concealed cistern and support frame installation
    • Dual-flush and soft-close seat upgrades
    • Soil pipe adaptation and pan connector replacement
    • Isolation valve and supply pipework renewal
    • Old suite removed and disposed of
    • Tiling and silicone making good around the pan
    • Landlord and multi-property fit-out pricing

    Choosing the right toilet

    Close-coupled WCs are the simplest and cheapest to replace and are ideal for a like-for-like swap. Back-to-wall units hide the cistern inside furniture and are easier to clean. Wall-hung pans give the most floor space and the cleanest look but need a supporting frame fixed to a solid wall or a properly built stud. Rimless pans are worth the small premium in rentals because they are far easier to keep hygienic.

    How the installation works

    We isolate the water, drain and remove the old suite, then check the soil connection height and offset. A flexible or offset pan connector is fitted where the new pan sits differently, the supply is re-run to a new isolation valve, and the pan is screwed and sealed to the floor rather than relying on silicone alone. The cistern is set up, the flush volume adjusted, and everything leak-tested under pressure.

    • Water isolated and old suite removed cleanly
    • Soil connection adapted to the new pan position
    • New isolation valve and supply pipework
    • Pressure test, flush adjustment and silicone finish

    Wall-hung and concealed cistern work

    A wall-hung installation needs a rigid support frame bolted to the structure, correct height setting for the pan, and access to the cistern for future maintenance. We build the frame, plumb the concealed cistern, and leave a serviceable inspection panel behind the flush plate — a detail cheap installations skip, which turns a simple future repair into a tiling job.

    Landlords and multiple properties

    For letting agents and landlords we standardise on robust, easily serviced models with widely available spares, so a future fault means a five-minute part swap rather than a whole new suite. Multiple installations across a portfolio are scheduled together and priced accordingly.

    Trusted by 15,000+ Homes & Businesses

    UK Gas Plumbers is Gas Safe registered, Checkatrade verified, and fully insured. Every engineer carries valid ID and credentials.

    Gas Safe Registered

    All engineers hold current Gas Safe registration verified on every job. Registration number available on request.

    Checkatrade Verified

    Independently verified member with 547+ genuine customer reviews and a 4.9/5 average rating.

    Fully Qualified & Insured

    Public liability insurance up to £5 million. All work guaranteed with 12-month warranty on parts and labour.

    5-Star Google Rating

    Consistently rated 5 stars on Google with verified customer reviews for reliability and professionalism.

    Commercial Certifications

    Qualified for CP42, CP44, CP15, CP16, and CP17 commercial gas safety certifications.

    24/7 Emergency Service

    Round-the-clock emergency response across London and the M25. Average response time under 60 minutes.

    Why choose us

    24/7

    24/7 Emergency Response

    Round-the-clock emergency service for homes and businesses. Our Gas Safe engineers respond within 60 minutes across London for boiler breakdowns, gas leaks, and heating emergencies.

    £

    Fixed Price Quotes

    No hidden costs or surprise charges. We provide transparent, fixed-price quotes for domestic boiler repairs, landlord certificates, and commercial gas installations.

    10

    10 Years Expertise

    Trusted gas engineers with a decade of experience serving homeowners, landlords, restaurants, hotels, offices, and industrial facilities across London.

    FAQ

    Toilet Replacement & Installation — frequently asked questions

    Related services

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    Get In Touch Today

    Need immediate assistance or want to schedule a service? Contact our experienced team of Gas Safe registered engineers for domestic and commercial work.

    Emergency Hotline

    24/7 Emergency Service

    0208 935 5572

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    Email Us

    info@ukgasplumbers.com

    Service Areas

    Central, West, East, North & South London
    Surrey, Kent & Essex

    Business Hours

    Mon-Fri: 8:00 AM - 6:00 PM
    Weekend & Emergency: 24/7

    Payment Terms

    • • Emergency Call-Outs: Full upfront payment for the first hour
    • • Quoted Works: Full upfront payment required before work commences
    • • Invoice Payment: Due within 14 days of invoice date

    Important: Late payment will invalidate the 12-month labour guarantee and warranty claims.View full terms

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    Our friendly support team answers every call, message and booking request — day, night, weekends and bank holidays. No call centres, no bots, no waiting in a queue. Speak to a real coordinator who will dispatch a Gas Safe engineer fast.

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