Your choice is MML Plumbing Ltd! Hire an installer in London’s heart!

Boiler installation is a popular service we offer to homeowners and landlords alike. We are available 24 hours a day, 7 days a week online, to make your quote for our domestic boiler installation services. Our team of qualified engineers will come to your home in Westminster with the best boilers suited for it from leading brands such as Worcester BoschVaillant, or Baxi at competitive prices.

Check out our North London boiler installation services

Looking for a Plumber or Gas Engineer in North London?


    Our Westminster gas engineer team has been installing boilers for over 15 years, and we offer quotes before any work begins, to ensure your peace of mind. We carry £2 million worth of public liability insurance so you can feel protected no matter what happens during the installation process; our engineers are qualified professionals with more than a decade of experience! If anyone needs a quality new boiler then MML Plumbing will be there to help!


    We are one of the few heating and gas professionals in your neighbourhood that can offer you a variety of services to meet all your requirements. We have been proudly serving homeowners for over 15 years, and we are still going strong! Our experts will make sure every detail meets safety regulations so you don’t need to worry about anything at all. Give us a call today or fill out our online contact form if there’s any way we can help- whether it is an installation on new boilers with Gas Safe registered engineers or service requests from plumbing repairs up through water heaters – MML has got you covered!


    For many homeowners, choosing a reliable company to install their boiler can be an arduous task. We are one of the top companies in North London because we fulfill all your needs and provide you with quality service that is both affordable and realistic as well! For starters, our prices will satisfy any budget for installation services; additionally, every employee here has been vetted by Gas safe certification so you know they’re qualified to work on your heating system. In addition to this safety assurance, there’s also a manufacturer warranty-so if anything goes wrong within a certain amount of year, you are protected. These aren’t even half the reasons why people love working with us.


    System Upgrade In Westminster

    System upgrade is a different method, then a simple boiler installation to the same location.
    If you’re thinking about installing a new boiler in your home, then you should really think about the long-term benefits of upgrading.
    Not only will your monthly bill be lower, but the more efficient boilers are also better for the environment and can save you money in the long run!
    If this sounds like something that is right up your alley, then we have experts who specialize in all types of upgrades to help make sure that everything goes smoothly.
    Think smart, and upgrade with MML Plumbing’s specialist!

    Google Reviews

    Denise Fallon
    Denise Fallon
    WOW.... what fantastic service... Levy arrived at the time I was given. He was totally professional, in capping my gas pipe. Unfortunately, he had to remove it all, as previous engineer left it short! in order for an Induction hob to be fitted. He went above and beyond what he came to do. He also checked my boiler as he was not happy about the pressure.. would definitely use MML again.. and I can highly recommend them..
    Charlie Charlton
    Charlie Charlton
    Did not have a 'regular' plumber in north London, so took a punt and mailed a few from Google search. MML came back immediately, great communication, good price for the work (which was not a simple job) and the engineer was excellent - friendly, professional and super hard working. Three long days for what was hoped to be a two day job, no moaning when it became more complicated (due to the old system being problematic), definitely reccomend.
    Martin Lawlor
    Martin Lawlor
    This was my second time using MML Plumbing. The plumber arrived on time, assessed the problem and did his best to resolve it. It was all completed within the hour and I am very pleased with the result. A very clean and tidy job done.
    Emily Harper
    Emily Harper
    MML Plumbing were really efficient, turned when he said he would, gave an accurate quote and did the job on time with no mess. I would definitely recommend them!
    Heidi Southall
    Heidi Southall
    I called MML Plumbing to investigate a boiler fault and they were very helpful and quick to respond. The engineer, Mike, arrived earlier than expected and was friendly and professional. He thoroughly explored the problem(s) and fixed what he could. Unfortunately, it is a problem that the manufacturer will have to deal with (due to availability of parts). Mike was very honest about this and, here is the amazing part, he did not charge me today as he couldn’t fully resolve the issue! Am so impressed and would not hesitate to call this family business out again.
    WH Acting
    WH Acting
    MML Plumbing did an excellent job. The engineer was very thorough with the safety checks, boiler service and Gas Safe certification of two properties he worked at for me. Very good value for money, very good service. Admin staff were courteous and friendly over phone and email and we very prompt with sending all paperwork and copies of photographs to me. Highly recommended!
    Ronald Watt
    Ronald Watt
    Katrina Perez
    Katrina Perez
    This is the third time I have used MML plumbing. They are by far the most helpful and efficient plumbers I have used. They have installed a boiler, replaired radiators, replaired and shower and toilet for me - all work is to a high standard and every repair explained in full. HIGHLY RECOMMEND
    Laurent VT
    Laurent VT
    Fantastic service! Our boiler stopped working unexpectedly. MML Plumbing came quickly, diagnosed the problem and resolved it immediately to make sure we weren’t without radiators for too long. Very impressed with the expertise, friendliness and communication. They also gave us tips for maintenance. Highly recommended!
    Jill J
    Jill J
    Replacement of fill valve. Efficient, professional and pleasant plumber.


    Quality boilers are essential for any home, which is why MML Plumbing has a team of gas engineers on hand to install them. Boilers can be complicated and expensive devices, so it’s important that you hire the right people to do the installation. Our expert service technicians will make sure your boiler is installed properly and safely! When it comes to MML Plumbing, we are not only focusing on safety, and gas safe regulations but quality. 

    Working with the biggest brands such as Worcester, Baxi, Viessmann, Vaillant. We can register your boiler to receive up to 10 years of warranty. 


    It always gives you peace of mind knowing your new boiler is suitable for your home, and heating system, your bills will reduce, and everything is installed safely and by the gas safety standards. 

    However, if you choose MML Plumbing to install your boiler, you will get more benefits, such as: 

    • Up to 10 years parts & labour warranty 
    • 24/7 online customer support
    • Gas Safe Registration & Paperwork
    • Warranty from us 
    • System Clean 
    • And many more. 

    We are a well-established and trusted Gas-Heating service in Westminster. Our boiler service team is here to help you with any of your Boiler, Heating, and Plumbing needs. Contact us online at any time,, or call us on 020 8355 0840.


    A boiler installation in Westminster can be a stressful process for homeowners. Many things need to be done correctly or it could lead to major problems down the road.

    We’re here to help you with your boiler installation, labour, materials, ordering, measuring, delivering, registering, paperwork, etc!

    Our team of professional plumbers will make sure your home stays safe and comfortable all year long!


    We offer a full range of services from boiler installations, repairs, maintenance, replacement parts, and more!

    You can count on us for any job big or small. Give us a call today at 0208355 0840 if you would like more information about our services or want an estimate on how much it will cost!

    Quote your new boiler online for free!


    We know you have a lot of work to do. Check out our quote my job page and fill up the details about your plumbing needs, so we can provide you with a FREE estimate from one of our expert plumbers!

    Service Areas

    EnfieldHaringey Barnet IslingtonCamden HackneyBrentWestminster

    Postcodes We Cover

    N1 – N2 – N3 – N4 – N5 – N6 –N7 – N8 – N9 –N10 – N11 – N12 –N13 – N14 – N15 –N16 – N17  –N18 – N19 – N20

    NW1 – NW2 – NW3 – NW4 – NW5 – NW6 –NW7 – NW8 – NW9 –NW10 – NW11

    Service Areas

    AdelphiAldwychBelgraviacharing crosschina townCovent GardenHolbornHyde ParkKnightsbridgeMayfairMillbankPimlicoSt James’sstandSohotempleVictoriaWestminster

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