If your boiler is over 10 years old then it is time to consider a change. Whether you wish to replace your old boiler with a new one or convert your whole central heating system.

Welcome to MML Plumbing ltd. We are a North London based gas-heating and plumbing company, registered by the local gas authority called Gas Safe!

Our engineers are also registered to gas safe, they always carry their Gas Safe photo ID.

So when it comes to planning and budgeting, always involve a professional, but never look at the budget ONLY!

So many things to consider, when you are having a new boiler installation. As we said, our first advice is not always to choose the cheapest quote. The devil is in details.

When you are contacting MML Plumbing ltd, we give you clear, and black and white instruction.

Find out more about boiler installation in North London


First of all, we will ask a couple of questions regarding your heating system, boiler, radiators, whether you are planning to buy your new boiler body or you wish us to provide you, and your realistic budget. We then make a calculation, which will give you a 90% accurate price you are looking at to install your new boiler. If you are happy with our calculation, then our gas engineer in Brent will visit you, and do some further important gas tests, checking your pipes, and the whole heating system. After all this, you will receive our FIXED PRICE QUOTATION. This won’t change.

Happy with our estimation, then we can start the work in just days because we do not want you to be without heating or hot water.

Our gas engineers earned their names in the Brent area too. Well-known and trusted experts in Brent, and all across North London.

Some of our customers left their feedback to help you decide, you are in the right place right now!

Looking for a Plumber or Gas Engineer in North London?


    Why you should choose us?

    Five-star reasons :

    1. Affordable prices
    2. Vetted technicians
    3. Gas safe registered
    4. Quality materials, and services
    5. Up to 12 years of warranty from the manufacturer

    These are just 5 reasons from all, why to choose MML Plumbing limited as your next installer in Brent. We provide a wide range of services such as plumbing services, heating services and gas services.

    Our heating engineers are covering your area, ready to serve you with their best knowledge.

    A central heating system is essential to your home. To get a fully functioning heater through the year, you have to maintain it properly. You might not think about your boiler when everything seems right; but if something goes wrong, then it’s too late!

    Expensive repairs, expensive parts, long hours to fix…

    We always recommend booking a heating engineer at least once a year, just to double-check your old system, and he can spot the issue on time if you have any. You might consider having a system clean done once a year.


    We like to save your old boiler first. However, there are circumstances, when we have to prepare you, to consider having a new installation.

    First and obvious sign if you are having a really old boiler. We consider a 10 years old boiler as an old boiler, but obviously, we have seen 20-30 years old boiler in some Brent homes. That’s not just inefficient but can break down at any second.

    Your boiler often needs fixing, repairing. This is just not worth it. The materials and the labour cost each time of the event, and if you multiply them, the amount you have already spend is equalled with a new installation price.

    In Brent, we are installing a lot of new boilers for our happy customers, each year. Trustworthy and reliable installers, affordable prices just worth a call! Contact us on 020 8355 0840 today, and book your gas engineer in Brent.


    A different method, different prices. A simple boiler replacement sometimes takes just one day, and the labour cost will be different compared to a system conversion.

    For those, who might not know, there is a huge difference between a system conversion and a boiler replacement.

    A conversion takes between 3-5 days and the prices will be more than the boiler swap.

    If you would like to know more about our boiler guide, check read more on our blog.

    Quote your job online, whenever you wish! We are open online 24/7. If you are living in Brent and your surroundings, send us your details about your new installation plan, budget, and we will get back, and even install your new boiler within 48 hours.


    Boiler engineers in Brent

    • We provide a wide range of gas services, help when you need it!
    • Gas boiler installation, boiler replacements
    • New central heating systems installation
    • Boiler services
    • Landlord certificate
    • Gas hob installations
    • Gas safety certificate
    • Heating and hot water issues

    For more information, or if you have any questions, feel free to contact us anytime at

    With us, you can book your Brent plumbers when needed. Our plumbers are highly qualified, insured and trusted in Brent.

    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.


    To book your plumber, you can choose from many customer-friendly options:

    1. Call us
    2. Email us
    3. Quote online

    Either way, our experienced, amazing office team will ensure your call, or email is answered, and your visit will be made on the same day or in a maximum of 48 hours.


    1.)How often does a boiler need to be serviced?

    Boilers need to be serviced at least once every 12 months, and tenants need to remember that it’s their landlord who is responsible for arranging a service in a rented property. Called CP12.

    2.)How long does a boiler service take?

    Depends on the boiler type, a basic boiler service will take between 30minutes to up to 1 hour. A full boiler service can take up to one and a half-hour.
    After, the engineer will likely give you a service report, explaining what they’ve done.

    3.)Does a boiler need servicing every year?

    First and foremost, you should make sure that your boiler is serviced every year. An annual service is regular enough to keep your boiler in good working condition. If you want to keep your boiler’s warranty valid, you’ll have to service every 12 months.

    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


    Alperton – Brent Park – Brondesbury – Brondesbury Park – Church End – Cricklewood – Dollis Hill – Harlesden – Kensal Green – Kenton – Kilburn – Kingsbury – Neasden – North Wembley – Park Royal – Preston – Queen’s Park – Queensbury – Stonebridge – Sudbury – Tokyngton – Wembley – Wembley Park – Willesden – Willesden Green



    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 installation needs, so we can provide you with a FREE estimate from one of our boiler installer.