Local gas engineers just a phone call away! Are you a resident of Muswell Hill and in need of a reliable and affordable engineer? You found the right team! MML Plumbing limited is a well-known, trustworthy local firm. Our positive reputation probably preceded us, that must be a reason you are on our website. We value every customer of ours, whether they are new, or old loyal customers. We will help you, and guide you through every step by step process, either you are calling us about booking, gas boiler installation estimation, how to quote your job, opening times, or you are curious about our prices.

Read more about the boiler installation service in North London!

Looking for a Plumber or Gas Engineer in North London?


    MML Plumbing is a gas safe registered local company you can rely on. Besides our affordable local prices and quality work, we always give honest advice.

    When you decide to contact us, we can reassure you, our estimation will be based on what you and your property really need. This might not match exactly your budget, but the cheaper is never the better option. For this reason, we’re flexible, and we will try to match your budget to your needs. But we have to be realistic at the same time.

    First things first. Contact. We will ask a couple of questions, and based on your answers, we can calculate a 90% estimation, how much your new installation will roughly cost. If you are still happy with our price, we will visit you asap, to run some necessary tests, to give you the last, fixed priced quote for your new boiler installation. This can be a little more or a little less from our initial over-the-phone quote. If you are still happy with your cost then we can start the process.

    We will book your appointment with one of our local gas engineer in Muswell Hill, and asap because we do not want you to wait more likely without heating or hot water.

    Installation time may vary, due to circumstances, type of the installation ( conversion or a boiler replacement) etc, but after our survey, we already gave you a time range, we will be finishing.

    After the installation, we still have responsibilities, as we have to commission your new boiler, register to the gas safe, and register you’re up to 10 years of labour and material warranty.


    Over the years, our well-respected customer base in Muswell Hill is responsible to spread their good experience with us through N10. We’re not just boiler installers, but providing plumbing and heating services all across Muswell Hill and the surroundings.

    Our company is gas safe registered by the local gas authority in the UK, as well as our engineers.
    It cannot be emphasized often enough how important is to check the company and the engineer you hire to install your new central heating system or replace your old boiler with a new one.
    With MML Plumbing, we can reassure you of our credibility, as we display our Gas Safe number on our website, which can be checked 24/7 on our website.

    Please, do not skip this step, for your own safety!
    Stay safe and call MML Plumbing today on 020 8355 0840!


    Our Gas services across Muswell Hill and the surroundings.

    We provide a wide range of gas-related services at very friendly prices. Services to Muswell Hill homeowners such as gas certificate, boiler service, repairing boiler problems, gas hob installation, central heating system clean, heating system issues and more.

    If you are looking to buy your dream home, in one of the most beautiful areas in North London, we offer a pre-purchase survey in Muswell Hill. This is an in and out check, including boiler, and heating system check. This can save you a lot of money, or even save you to buy a house with hidden issues, which can cost later your arms and legs.

    With gas, we work only domestic, residential, however, our plumbers are working on both commercial and domestic plumbing issues.

    Landlords and small businesses also have their choices, such as CP12 called landlord certificate, or they can also use the rest of our gas services if needed.

    Our engineers well know in the area, they know all the streets, merchants in case if needed. They will never be late!

    As said earlier, no one can beat our friendly prices and the quality we provide on the professional market. Contact us today, to see it with your own eyes. 


    We will help you with the decision. The only way to tell is to visit your home. Our special tools and knowledge allow us to check your whole system, and with our carefully compiled questions, we can tell you what boiler is the best option for your home. There are 3 main types we can choose from, system boilers, combi boilers, or heat only boilers. To choose, we have to do a lot of work and run tests beforehand.

    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.


    Trust the best, and support local, and receive benefits!

    With our installation services, you can be sure that your home is more comfortable and the bills are lower. We also offer occasionally discount to locals, and we have a never-ending offer to those who need the most. People living with cancer get 20% off from all of our services 365 days a year! We are working hand in hand with Ellies Friend’s  to help!

    Our heating engineers are always available, the whole year, with a high demand of interest at the end of the year. For peace of mind, make sure your book your visit on time. 

    Email us at, and we are ready to help.


    1. How much should a new boiler and installation cost?

    Everything is depending on the property and customer circumstances. If the customer needs a Conversion or a Boiler replacement. Fitted costs for a new boiler installation starts around £1,600, for a combi, £1,400, and for heat-only and £1,500 for a system boiler. 

    2.How long does the boiler installation take?

    Again, this is hard to answer correctly, but it shouldn’t take more than 1-3 days to install a new system, or replacing a boiler.

    Service Areas

    EnfieldHaringey Barnet IslingtonCamden HackneyBrentWestminster


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    Muswell Hill
    Thursday, 27 May
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    We know you have a lot of work to do. Check out our quote on my job page and fill up the details about your boiler installation needs, so one of our expert gas engineers can provide you with a FREE estimate.