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Información sobre la empresa

  1. Fontanero
  2. Contratista de calefacción
  3. Servicio de restauración de daños producidos por inundaciones

Escrito por la empresa

MML Plumbing Ltd – Leak Detection & Plumbing Experts in North London Why guess when a hidden leak can be proven? MML Plumbing Ltd are North London's specialists in leak detection and plumbing experts, helping homeowners, landlords, insurers and property managers across London remove uncertainty before property damage spreads. Instead of opening walls or lifting floors to "see what's wrong", we locate and prove the exact source using advanced acoustic listening devices, tracer gas, thermal imaging cameras, moisture meters and pressure testing – without unnecessary damage to your property. Every investigation ends with a full insurance-ready photo report and one clear conclusion based on measured evidence, not assumptions — giving insurers and loss adjusters exactly what they need. We also carry out all associated plumbing repairs. Fully insured and trusted with 90+ five-star reviews. Fixed pricing across London and North London. "We find leaks without damaging your home." No guesswork. Just proven results. 📍 Serving: Barnet, Muswell Hill, Finchley, Enfield, Crouch End, and surrounding North London areas 📞 Call 02083550840 | 💧 “We find leaks without damaging your home.” 🔗 www.mmlplumbing.co.uk


Información de contacto

4,1

Muy bueno

TrustScore: 4 sobre 5

16 opiniones

5 estrellas
4 estrellas
3 estrellas
2 estrellas
1 estrella

Ha contestado el 100% de las opiniones negativas

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Trustpilot no permite a las empresas ofrecer incentivos ni pagar para ocultar opiniones. Las opiniones son propiedad de los usuarios y no de Trustpilot. Más información

Valorada con 5 estrellas sobre 5

I can’t recommend MML enough.

I can’t recommend MML enough.

We had an ongoing leak issue from a neighbouring flat and had already used a few other contractors before contacting MML. The previous companies could see signs of the leak, but none of them could provide the evidence and identify the source.

From the very first contact, Silvia was a star, always responsive, professional, and extremely organised. She understands the sensitivity in handling neighboring issue and went above and beyond to help arrange the visit.

On the inspection day, Levi carried out a very thorough investigation of the affected area, using a range of detection methods to accurately trace the cause of the leak. The report, with clear findings, evidence, and recommendations, arrived within 2 days.

Thanks to Silvia, Levi, and the whole MML team. You are truly professional and trustworthy leak detection specialists, and your support made a very stressful situation easier for me and my family.

11 de marzo de 2026
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Thank you so much for your wonderful review about our " ADVANCED LEAK DETECTION SERVICES"— it truly means the world to us and the whole MML team.

Neighbouring leak disputes are among the most challenging cases we deal with — not only technically, but also in terms of sensitivity and communication between parties. We are so glad we were able to step in and provide the clear evidence and source identification that the previous contractors were unable to deliver.

This is exactly what sets MML apart — it is not just about having the right equipment. Leak detection is a specialist field that requires years of expertise, advanced qualifications, and the experience to interpret findings accurately. Anyone can purchase detection tools, but without the knowledge and expertise behind them, the results will always fall short.

Levi's thorough investigation and the detailed report with clear findings and recommendations are a reflection of the high standards we hold ourselves to on every single job.

It was an absolute pleasure working with you, and we hope you won't need us again — but if you ever do, we are always here.

With warm regards,
Szilvia & the MML Plumbing Team

Valorada con 5 estrellas sobre 5

5 stars!

A huge thank you to Levy, Jaymus, and Ted for the amazing work they did at Elizabeth Avenue Group Practice. They replaced all the radiators and completed the job within a week, keeping disruption to a minimum. They also cleaned everything afterwards, leaving the place spotless. On top of their professionalism, they were a real pleasure to have around: always friendly, chatty, and full of good humour. I couldn’t recommend them enough!

1 de septiembre de 2025
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Thank you so much for your wonderful feedback! We’re delighted to hear that Levy, Jaymus, and Ted were able to complete the radiator replacement at Elizabeth Avenue Group Practice quickly and with minimal disruption. Our team always aims to deliver professional, efficient, and friendly service, and it’s great to know this was your experience.

At MML Plumbing, we take pride in providing high-quality heating and plumbing services in North London, from full radiator installations to advanced leak detection and boiler work. We really appreciate your recommendation and look forward to helping with any future plumbing or heating projects.

Best, MML Plumbing Team

Valorada con 5 estrellas sobre 5

MML Plumbing has saved my life from…

MML Plumbing has saved my life from start to finish!

I wanted to buy a 3 bed house in Barnet and called MML for a homebuyer survey. Lisa was very knowledgeable and transparent. After their visit, they discovered huge issues, such as boiler wasn’t working, water pressure issues and other gas issues. I decided to pull back from the purchase. The second house I viewed has only small issues so I bought the house 6 months ago now.

The issues they found were accurate and resolved by them later on, and no other issues with the house!

MML diagnosed accurately and with 100% accuracy!

I am grateful finding them, they are a business who is hard to find!

Since then, I used then to rectify the issues then find while carrying out the Pre-Purchase survey, and other refurbishment that I wanted to carry out after moving in!

The engineer Mike is always friendly, knowledgeable and professional!

Office staff Szilvia, Lisa and Adam are available 24/7 and always help.

Cannot ask for a better team in North London!

Thank you guys!

4 de marzo de 2025
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Thank you so much for your wonderful feedback! We’re delighted to hear that our team were able to help.

Our team always aims to deliver professional, efficient, and friendly service, and it’s great to know this was your experience.

At MML Plumbing, we take pride in providing high-quality heating and plumbing services in North London, from full radiator installations to advanced leak detection and boiler work. We really appreciate your recommendation and look forward to helping with any future plumbing or heating projects.

Best, MML Plumbing Team

Valorada con 1 estrellas sobre 5

Pre-purchase plumbing survey

We purchased a property last year. We hired MML Plumbing to carry out a pre-purchase plumbing survey. MML carried out the report and sent it to us.

It has become apparent that the report did not flag the risk associated with the underfloor heating arrangement of the house. In particular, while the report stated that "...This UFH is connected to the radiator meaning it doesn't have any separate controller....", it did not flag the risk related to this: that the return pipe or valve of the arrangement was not located and that, until at least the return pipe was located, we should not drain the system as it would be very difficult to make it function again. In contrast, in the preceding paragraph, it flagged the risk associated with some narrow pipe connections of another radiator.

We recently hired a qualified plumber to drain the system (we needed to remove the radiators to paint) and have had significant issues making the underfloor heating work because of the way the heating is set up.

Our experience is therefore that the services we hired MML to carry out were not carried out to the expected (reasonable) standard and the risk associated with the fact that said standard was not met have materialised. Had we known in advance of purchasing the property that this risk existed, we would have taken steps. We would of course not have carried out invasive test at the pre-purchase stage but we we would have approached the purchasing process differently - and would certainly not have removed radiators (a simple task for a qualified professional) in order to paint.

Reply: The whole point is that the report did not equip us to understand that the extent of the risk posed by the set up. Telling a lay person that the UFH is attached to a radiator and there is no controller does not imply that something as basic as draining a system would cause issues. We did not hire MML because the quote for the latter work was close to £1k. The issue is not what is happening at the moment but the fact the report did not flag the issue (in contrast, it flagged the risk of narrow connection pipes); the UFH comment (one-liner) did not even make it to the summary section of the report.

I posted the negative review because you indicated you would not engage in further correspondence. Your offer for a visit came after I posted the review, as the withrdawal of the refund.

29 de octubre de 2024
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Thank you for your review, Rita Nissim.

We’re sorry to hear about your dissatisfaction, but we must clarify that the underfloor heating setup was clearly noted in our report, carried out on 29th October 2024—nearly a year ago.

As quoted:

“The underfloor heating is in the living room only. This UFH is connected to the radiator, meaning it doesn't have any separate controller. But it is working, the heating-up time is 40 minutes at least.”




This clearly indicated a non-standard configuration, which any qualified heating engineer should have identified prior to draining the system. The survey was non-invasive, as specifically agreed and requested, and the heating system was fully operational at the time.

You contacted us 9 months later, only after hiring another contractor who drained the system without checking the setup ( they charged you £260) we had already flagged—including the absence of a manifold and the direct UFH-to-radiator connection.

Last year, you also requested a quote from us to replace a few radiators, which we provided, but we never received a reply. You chose to proceed with another company, and unfortunately, that decision has now led to issues.


" Scope of the Inspection
The inspection covers both visible and accessible areas of
the property, with a focus on the plumbing, heating, and
gas installations. Using advanced tools such as acoustic leak detection equipment, thermal imaging cameras, and moisture meters, we assess the systems thoroughly to ensure accuracy and minimal disruption."

We offered a £100 goodwill gesture to maintain a positive relationship—not due to any fault on our part. You declined and instead demanded £300 to cover the third party cost. Once that was not agreed to, you submitted this negative review.

We also offered a follow-up visit and asked for evidence or a report from the third party, but no proof of their qualifications or work has ever been provided.

At MML Plumbing, we take pride in providing professional heating, plumbing, leak detection, and boiler surveys across London—saving thousands of pounds for our valued customers through accurate, honest inspections and reports.

We stand firmly by the quality and transparency of our service.

— MML Plumbing Ltd

Valorada con 5 estrellas sobre 5

wonderful company, very professional and good to work with.

Levi has undertaken quite a few jobs for me now for my rental property from renovating a shower unit, changing taps, fixing a broken boiler and replacing radiators. His work is efficient and professional, he attends on time and the communication is excellent. I prefer to support local business as the service you get is always more personal and transparent. The prices are fair and honest.

28 de junio de 2024
Opinión espontánea
Valorada con 5 estrellas sobre 5

Brilliant work and amazing customer service

I have used MML plumbing before and have always been very happy with their work. Recently my elderly Mum needed her bath replaced with a walk-in shower. Despite problems of our making with car parking permits, they rearranged their schedule so I could get these. The work was completed perfectly and on time, and we were both delighted with the work. During the work a door with a mirror on it slammed shut and the mirror fell of and broke. This was no fault of the plumber at all. My Mum was a bit upset about it, but a week later MML got in touch to say they had found and obtained an exact replacement and would come around and fix it.

I have been blown away by their consideration and excellent service, and that they have gone above and beyond what anyone could expect and would highly recommend them.

26 de marzo de 2024
Opinión espontánea
Valorada con 5 estrellas sobre 5

MML plumbing has done great work on our…

MML plumbing has done great work on our property renovation project. They did the first and second fix plumbing, heating, and boiler installation. The engineers worked long hours and arrived on time. Communication with the plumbers and the office was very easy. The plumbers designed and installed an energy-efficient heating system that is also easy to control. I highly recommend them for plumbing heating and boiler installation works.

14 de diciembre de 2022
Opinión espontánea
Valorada con 5 estrellas sobre 5

The service was amazing

The service was amazing, and the work was done to a high standard. A family run company with fantastic ethics. The whole process from start to finish was polite & professional

10 de junio de 2022
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Dear Katie, Thank you so much for sharing your experience with MML Plumbing Ltd. We are happy to help with our plumbing, heating, gas or leak detection services in the future. Best Wishes: Admin

Valorada con 5 estrellas sobre 5

The toilet was damaged

The toilet was damaged. The service we received was excellent. We will recommend you for the best service. Thank you

16 de noviembre de 2021
Opinión espontánea
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Respuesta de MML Plumbing Ltd

5 star review - new toilet installation - happy customer

Dear Khadija, Thank you for sharing your excellent reviews to the public. We are happy that we were able to visit you on the same day you called us, regarding the toilet problem, and help you out in the emergency situation. We are glad to hear that you are happy with your newly installed toilet. We are always ready to offer our boiler, heating, gas and plumbing services to you, at anytime. Regards.

Valorada con 5 estrellas sobre 5

Very efficient service Thoroughly…

Very efficient service Thoroughly checked hose and confirmed there was no internal leak, as requested.

28 de octubre de 2021
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Dear Mike. Thank you very much for your review. We are glad that you shared your 5 star services to everyone, and glad you were happy with our leak detection services. If you need anything in the future, whether it is plumbing, heating or gas related, do not hesitate to contact us. MML Plumbig Ltd

Valorada con 5 estrellas sobre 5

A gem of a plumber

Great experience with MML from start to finish! Clear, efficient communication, transparent and reasonable pricing. Our plumber was punctual, professional, kept us informed of our options, and was extremely hardworking. He was even kind enough to manage the situation with our neighbours who were quite annoyed that we had to shut the water off urgently. Our plumber found and repaired a leak in a concrete wall (more complex than expected but it didn't deter him), fit a new kitchen tap, and even stayed beyond the allotted time to look at our boiler and find a problem with our radiators that we hadn't noticed. We were really impressed by the efficiency, dedication and level of service. We will recommend MML to others and use them again in the future. PS: At the time of writing, their overall Trustpilot score is only 4/5 whereas all customer reviews have given a 5-star rating. I found this strange when doing research myself and seeing everyone had given them a 5. So remember they're truly a 5-star plumber, not a 4-star one!

17 de agosto de 2021
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Dear A.K. Thank you very much for your kind words, we are glad that you were happy with your plumbing services, and a leak detection. Our plumbers and gas engineers are hard working individuals, and just like you said, never complaining. This is our policy, transparency and honesty, and lovely customers like you, appreciate it. Thank you for mentioning the displayed 4 star, instead of 5. Call us or email us at anytime, when you need a plumbing, heating or gas service. Kind regards: MML Plumbing Team

Valorada con 5 estrellas sobre 5

Excellent service

Excellent service. Levi came promptly and it was obvious he knew exactly what he was talking about. He explained everything and left me able to sort things out if necessary. He diagnosed a leak, and proceeded to find it, although that was not why I called him in.
All heating sorted efficiently and calmly.

9 de octubre de 2020
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Thank you so much Lynne for your kind words. If you need anything, you can call us anytime. MML Plumbing Team

Valorada con 5 estrellas sobre 5

Great plumber

Levy was excellent, communication was fantastic, very foucsed on doing a high-quality job. Highly recommend.

29 de septiembre de 2020
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Dear Benjamin. Thank you for your review! If you need our plumbing, or heating service in the future more, you know where to find us. Mml Plumbing ltd.

Valorada con 5 estrellas sobre 5

Amazing service. Great workmanship

Amazing service.
MML went abover and beyond from the moment of my first enquiry until after the installation of my boiler.
Professional.Great workmanship.
I am now having them back to do other work for me and have recomended to friends.

22 de septiembre de 2020
Opinión espontánea
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Respuesta de MML Plumbing Ltd

Thank you Katrina for your kind feedback, we are always happy to help. See you soon! MML Plumbing team

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