Looking for a Plumber or Gas Engineer?



    You Can Call Us At 020 8355 0840 or Book An Appointment Today


    Get the best solution, what you deserve! – MML Plumbing Ltd.

    Use a local installer and support your community

    By using a local installer you can receive so many benefits. Additionally, the cost of the installation can be less because local firms are covering only the area you both live. Basically big corporations, on the other hand, cover a big part of the city or county, and their head office is never located in North London, therefore they will charge more to cover the engineer’s travelling time.

    Moreover, if it wasn’t enough, local businesses provide more availability, again because of the smaller area they cover.

    How do I find and hire a Heating Engineer or Gas engineer?

    When searching for heating engineers or gas engineers for your job, the company needs to offer you an estimate based on their work histories. Since heating equipment is extremely complex, it is advisable to look for a reliable trader. For heating works, it is essential to call out a gas-safe registered engineer, because they are the ones competent to carry out gas works legally.

    For every other tradesman, it is illegal to touch any gas appliance or run a gas pipe. Ask friends, neighbours, relatives or family members who have recently completed heating system-related installations such as new boiler install, or radiator installation at their homes to recommend the company they used. Google search. Even though friends and family’s recommendations, online presents are a must! If a tradesman is not willing to invest in a limited company, public liability insurance, courses to educate, website, SEO or personalised email address, or online presents, it is not something you want to choose. Online presents are the way to eliminate potential cowboy traders.


    Are you looking for reliable plumbers in North London? Do not hesitate, to contact our customer service today.


    What’s the difference between a heating engineer, a gas engineer and a plumber? Read more.

    A plumber is a qualified tradesman who is competent to work on your plumbing system, whether it is a repair or new plumbing installation.

    Heating engineer is another level an extra qualification for heating systems, such as radiators, hot water tanks or fixing heating issues.

    A gas engineer is the only person who is competent to touch any gas appliances, such as boilers, gas cookers, gas hobs or rerun a gas pipe.

    We offer quality boiler and central heating service and repairs in North London and surrounding areas. To give you peace of mind, all our experts are Gas Safe registered.

    Check the BENEFITS of using our services.

    • Local
    • Reliable
    • Affordable
    • Quality
    • Honest and professional
    • Good experience
    • Qualified heating engineers

    Central heating systems

    A central heating system provides warmth to the whole interior of a building (or portion of a building) from one point to multiple rooms and provides hot water.

    New central heating equipment includes new boilers, new heating units, radiators, TRVs, pipework, hot water tank, room thermostats and new metering equipment.

    Ready to book your appointment today? Reliable heating engineers.

    Gas Safe Experts you can rely on!
    Choose our fast booking North London boiler installation service.


    vaillant boiler
    alpha boilers
    ideal boiler
    worcester boilers
    main heating
    baxi boilers
    viessmann boilers

    What’s involved in installing a central heating system?

    Central heat installation can generally be performed easily and quickly by an experienced installer. This is something that cannot be done by DIY enthusiasts and needs to be completed only through qualified engineers.

    Installing pipes, gas or electric boilers requires a gas-safe registered engineer. Installation of radiators, smart thermostats and hot water cylinders can be done by a heating engineer. Moreover a professional will help you to calculate the best size of the boiler, and the radiator sizes in order to save money on your bills, and have a comfortable heating temperature in your home.

    • boilers
    • vented or unvented cylinders
    • water cylinder
    • smart thermostat
    • system boiler
    • combi boiler
    • heat only boiler
    • radiator valve
    • radiator
    • pipes

    Improving your heating could save you money?

    YES! – Modern boilers use much less fuel and are able to produce a higher temperature than older boilers. This allows them to obtain an efficiency of up to 94%. If older boilers are around 60% efficient, this would mean significant savings, around 30% savings on your bills. Maximising energy savings shouldn’t end here. By just upgrading your thermostatic radiator valves, you can make a big change.

    How much does it cost to install a central heating system?

    A new installation varies according to several aspects. Depends on what you wish to install, how big your house is, how many boilers, and radiators are needed, etc. Some people like to buy the materials for themselves, some don’t. A central heating installation is a big responsibility to the company that does the work for you.

    The cost of a new central heating system installation’s labour starts at around £3500-£5000, de depends on a number of factors.

    If you wish to personalise your own house’s installation contact our office today. Send us pictures, and details to info@mmlplumbing.com, and happy to provide you with a more accurate quote TODAY!

    What to choose? Go Green?

    Since the electric bills and gas bills are gone up, you could say, it doesn’t matter. But it does! To save the environment we are definitely recommending to thinking to change for electric boilers. The UK is planning to ban gas boilers and start the procedure as early as 2025. The new gas boilers are hydrogen ready. It won’t affect the overall central heating installation cost, because the boilers themselves are similar prices.

    Are electric boilers good?

    • An electric boiler can be a more efficient and the best alternative to gas and oil. Environmentally friendly option to heat your home.
    • An electric boiler is ideal for properties that aren’t connected to the gas network.
    • Ideal for small homes with low demand.
    • Zero risk of a carbon monoxide leak.

    Are gas boilers good?

    • Might be cheaper than electricity.
    • Can meet higher demands for hot water and heating.
    • Risk of a carbon monoxide leak if became faulty or left unchecked for years.
    • Gas boiler installation ( boiler replacement) is a straightforward job for a gas engineer.
    • Suitable for the gas types of central heating system – Gas heating system

    Central heating systems installations in North London by MML Plumbing ltd.

    Installing central heating system has to be planned and prepared carefully by a professional. MML Plumbing Ltd is a local reputable firm, and we can help you from start to finish.

    Friendly central heating installation costs, a professional, reliable team on your doorstep.

    Whether you need a full installation, or just a hot water cylinder or a gas boiler, we are here.


    Recognise, when it is necessary to call an expert!

    A few examples of when you might have an issue, and it is time to call professional help to avoid major damage!

    Bottom of the radiator is cold?

    This is most likely a sludge build-up in the bottom of the radiator, this easily can be fixed! Our reliable plumber will check your radiator using a thermal imaging camera. One solution can be a central heating system cleaning.

    Pressure loss?

    In a few of the cases, the reason is a leak in the central heating pipework. This can easily be repaired by our professional specialists. When we carry out an annual service, we check your heating system if there is any leak. It is a very useful process, we search for hiding faults that can cause major damage in the future.

    Top of the radiator is cold?

    Another easy fix for the plumbers might be just a small air trapped in the top of the radiator.

    BOOK YOUR amazing heating services today!

    Send an email to our friendly office team!

    Boiler switching off?

    For our engineers, this including in the weekly repairs list. It can happen every minute.
    The lockout is some safety issues, so it is always better to have a look!
    The good news is, that you can increase the boiler lifespan with annual boiler services.
    Just a few lockout reasons:
    Check if you have power!
    The central heating pump.
    There is low pressure in the system.
    You have a small blockage somewhere!

    Noisy boiler?

    We mean gurgling or banging noises. Most of the cases are related to the central heating pump. If the air will build up in the pump, causing an airlock and the pump will be noisy but this can be fixed very simply. Usually, our trusted gas safe engineers can handle this situation very easy, by bleeding the air from the pump.

    Kettling noises?

    Can you hear kettling noise coming from your boiler? This noise can be sludge in the heating system, which blocking your heat exchanger, and the water will start to boiling.
    Our gas engineers help you to install a scale reducer for system protection.



    central heating services in North London


    There are 3 common types of central heating systems in the UK, and we install all of them.


    This is very popular and also the most energy-efficiency system. These systems don’t require a hot water cylinder in the airing cupboard. This gas boiler heats the water only when you need it, which makes it very efficient. It is also heating your radiators when you turn up the room thermostat.

    With this central heating system:

    • You save a lot of space and money on your bills.
    • You will have modern heating controls.
    • Your boiler is heating the water only when you need it.
    • The boiler fed by the main supply, and you can have powerful pressure at the shower.
    • This boiler is recommended to serve one bathroom.
    combination boiler


    Our installer helps you choose the best option for you.

    • You can have a storage tank installed.
    • The cold water will be fed from the main, thus producing powerful hot water for the bathrooms.
    • You can have multiple bathrooms.
    • You can use more than one shower at the same time.


    In this scenario, we install a regular boiler for you together with a storage tank. Usually, we replace or upgrade these types of central heating systems.

    This is a heat-only boiler, which will heat the radiators and also the cold water that is stored in the storage tank. This is ideal for homes, where are low pressure and high water demand.

    The Conventional Boiler advantages:

    • Because you have an immersion heater in the storage tank, you have backup hot water all the time. If your boiler will break down, the immersion heater can be used.
    • Multiple people can use the bathroom at the same time.
    • Perfect where is low water pressure.


    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.


    Gas ServicesBoiler installPlumber ServicesLeak Detection Services


    Immersion Heater Is Not Working Testing An Immersion HeaterLegionella Disease: Hot & Cold Water Tanks




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