New Boiler Installation: Get an Energy-Efficient Boiler Installed 

We offer a fixed-price supply and installation for your new boiler. Secure yours today!

Our expertise covers all aspects of boiler maintenance and installation. Whether you need routine servicing or the installation of the newest energy-efficient boiler models, we are equipped to handle all your boiler-related requirements.

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Identifying When You Need a New Boiler 

Upgrading to a new boiler can be a wise investment, particularly if your current system is showing signs of wear. Not only can a new boiler improve heating efficiency and reduce operating costs, but it can also enhance home comfort and safety.

Signs You May Need a New Boiler:

  • Frequent Breakdowns: Constant need for repairs can be costly and inconvenient.
  • Rising Energy Bills: Older boilers often lose efficiency, leading to increased energy consumption.
  • Strange Noises: Banging, whistling, or gurgling sounds can indicate serious problems.
  • Inconsistent Heating: If some rooms are cold while others are too hot, your boiler may not be distributing heat properly.
  • Visible Wear and Tear: Signs of rusting or leakage around the boiler.
  • Age: If your boiler is over 15 years old, it might be time to consider replacing it with a more efficient model.

What Our Customers Say


Claudine de Montule
Claudine de Montule
2023-10-13
Great and efficient boiler service, fixed price so no surprises. Very professional
Danuta Miloszewski
Danuta Miloszewski
2023-09-06
Used MML Plumbing for the first time today. Administrator in office was easy to deal with, efficient and helpful. Plumber arrived on time as arranged, fixed the problem and explained what he had done. Quick, tidy and courteous worker. What I also especially liked was that I was given an actual confirmed time when he would arrive and not one of those two or three-hour 'window slots'!
Charles V
Charles V
2023-08-11
MML Plumbing successfully completed the installation of our heating system in our expansive 8-bedroom residence. The placement of the boiler and cylinder was expertly executed in the basement. They meticulously laid new piping throughout the house to facilitate radiators and hot/cold water faucets. The recent commissioning of the system has resulted in its exceptional functionality. Their impeccable organization and absence of any delays were notable. We definitely plan to engage their services again in the future.
Roger Packham
Roger Packham
2023-08-08
MML were extremely responsive and accomodating through out. They understood my needs and were solution focused through out the job. I found them so easy to work with and would definitely use them again. Thank you MML.
Agnes Meszaros
Agnes Meszaros
2023-08-02
Fast, professional, high quality service at a very reasonable price. I’m really glad I found them.
Henry Smith
Henry Smith
2023-07-27
In North London, it can be hard to find a company that you can trust and provide quality work. We called MML Plumbing to install a system boiler and a hot water cylinder. The installation was done in a few days, and now everything is fine. They left the area very clean. I highly recommend them.
Andrew Healey
Andrew Healey
2023-07-24
I had a shower replaced. A great job, very satisfied with the work. Levi was friendly, helpful and efficient.
Jatin Modi
Jatin Modi
2023-07-21
I have been a landlord for 15 years and used many labour staff in my years. I started to use MML 6months back and now used them 5 times: 1) They are always on time 2) They are respectful 3) I trust their quotes - they do not "make up work" 4) They communicate well on both email and text 5) They are very organised and polite I have dealt with so much domestic help over the years so i know the benchmark - MML are way above Jay (Camden)
RW
RW
2023-07-19
MML fitted a shower. Good price, courteous and thorough communication and excellent standard of work. I will call them again if I have plumbing related work
Hollie Davies-Smith
Hollie Davies-Smith
2023-07-15
⭐⭐⭐⭐⭐ I am thrilled to leave a 5-star review for MML Plumbing's advanced leak detection services. They were able to find a leak that three other plumbers had missed. Their use of thermal imaging and acoustic leak detection tools set them apart from other companies in the area. What impressed me the most was their commitment to resolving the issue without causing unnecessary damage, while other companies suggested tearing apart my ceiling. Their services are not only effective but also affordable.They are a reliable and trustworthy company that goes above and beyond to solve plumbing problems. Thank you, MML Plumbing, for your expertise and exceptional service. I will definitely turn to you for any future plumbing needs. Hollie xxx

What Kind of Boiler Do I Need?

When considering which type of gas boiler best suits your needs, it’s essential to understand the various options available. Gas boilers come in different types, each with its own advantages and suitability for specific applications:

Condensing Boilers:

Condensing boilers are a type of gas boiler that maximizes energy efficiency by capturing and reusing heat from exhaust gases. They achieve higher efficiency levels compared to non-condensing boilers by condensing water vapour in the flue gases, thereby reducing heat loss. Condensing boilers are available in combi, system, and heat-only configurations and are environmentally friendly, cost-effective, and comply with modern energy efficiency standards.

Combi Boilers (Combination Boilers):

Combi boilers combine a central heating boiler with a high-efficiency water heater in a single compact unit. They provide both space heating and hot water on demand, eliminating the need for a separate hot water cylinder or storage tank. Combi boilers are ideal for smaller properties or homes with limited space, as they offer efficient heating and hot water supply without the need for additional storage.

new boiler fitting by our gas engineer
Replacement of boiler system in North London by certified gas engineer

System Boilers:

System boilers, also known as sealed system boilers, incorporate a central heating boiler and an unvented hot water cylinder into a single unit. They work with a separate hot water storage tank, ensuring a constant supply of hot water to multiple taps or showers simultaneously. System boilers are suitable for larger properties with higher hot water demand and can provide high water pressure to multiple outlets.

Heat Only Boilers (Regular Boilers): 

Heat-only boilers sometimes referred to as regular boilers or conventional boilers, consist of a central heating boiler, a hot water cylinder, and a cold water storage tank. They are typically used in properties with existing traditional heating systems and are compatible with open-vented or sealed heating systems. Heat-only boilers are suitable for homes with high hot water demand or where multiple bathrooms are present, providing a reliable and consistent supply of hot water.

Conventional boiler: 

Also known as a regular or traditional boiler, is a type of heating system that features a separate cylinder or water tank for storing hot water. This means it can provide hot water to multiple taps at the same time without a reduction in pressure. It requires a cold water storage tank, usually in the attic, which feeds water to the hot water cylinder. Conventional boilers are particularly suitable for homes that already have a traditional heating and water system in place, which is connected to a separate hot water cylinder. These boilers are ideal for larger homes with higher water usage or where multiple bathrooms are in use.

Gas engineer conducting safety checks on a boiler installation

Get a New Gas Boiler Installed in Three Easy Steps with MML Plumbing

Discover Your Ideal Gas Boiler

Obtain a quick online quote for a new gas boiler in just two minutes. Alternatively, you can email us, and send us pictures to identify the most efficient and suitable gas boiler for your home.

Choose an Installation Date That Works for You
After selecting your ideal boiler, you can book an installation appointment that fits your schedule. The total cost will conveniently include the installation fee, providing a hassle-free experience.

Expert Installation by Certified Professionals
Our Gas Safe registered engineers will efficiently remove your old boiler and thoroughly flush your system upon request. Following the installation of your new boiler, they will guide you through its functions and features.

Contact a Boiler Installer – Install Now and Save 10% Off Your First Year’s Energy Bills

Get ready for winter with our reliable boiler installation services. Schedule now and ensure your home stays warm and cozy!

What happens during your gas boiler installation?

At MML Plumbing, we pride ourselves on offering a personalised approach to the boiler installation process.

Direct Contact: Reach out to us via email or phone to initiate the process. We’ll guide you through the steps and answer any questions you may have.

Send Pictures: Share images of your current setup with us. This helps our team assess your needs accurately and provide a tailored solution.

Fixed, personalised price: Unlike generic online calculators, we don’t believe in one-size-fits-all solutions. By analysing your pictures and understanding your requirements, we provide a fixed, personalised price with 100% accuracy.

Expert Consultation: Benefit from our expertise and guidance throughout the process. We’re here to ensure you get the right boiler for your home and budget.

Contact us today to get started on your bespoke boiler installation journey with MML Plumbing.

Choose from Top Boiler Brands: Premium boilers for any budget

Vaillant Boilers – OUR RECOMMENDED CHOICE: As advanced installers with extended warranties, we’re proud to offer Vaillant boilers renowned for their quality and innovation. Enjoy the benefits of a modern combi boiler, along with an extended warranty for added assurance. Explore our range of Vaillant combi boilers to find the perfect fit for your home.

Worcester Bosch Boilers: Our Worcester Bosch boiler installations include a complimentary 7- to 10-year warranty, ensuring peace of mind for years to come. Explore our range of Worcester Bosch boilers today.

Ideal Boilers: Established in 1905, Ideal Boilers are synonymous with eco-friendliness and dependability. Each Ideal boiler installation is accompanied by up to a 10-year warranty, guaranteeing smooth operation of your heating system. Discover our selection of ideal boilers for your home.

Glow Worm Boilers: Trusted for their efficiency and performance, Glow Worm boilers are an excellent choice for reliable heating solutions. With our Glow Worm boiler installations, you can expect quality craftsmanship and dependable operation backed by our expertise. Browse our Glow Worm boiler options today.

Transparent Boiler Installation Costs

At MML Plumbing, we believe in transparent pricing. You’ll receive great value on all our boiler models and brands, with installation included at no additional cost. Opt for our boiler finance options to spread the cost over time, making your purchase even easier.

Price Guide

Worcester Bosch Boilers: Starting at around £1,800 (VAT included)

Ideal Boilers: Starting at approximately £1,500 (VAT included)

Vaillant Boilers: Starting at around £1,900 (VAT included)

Glow Worm Boilers: Starting at approximately £1,400 (VAT included)

Please note that these are rough estimates and actual prices may vary depending on factors such as the specific model, installation requirements, and any additional features or accessories needed. It’s always best to contact a qualified installer for a personalised quote based on your specific needs and circumstances.

We’re here for you afterwards too

We’re also here to support you after you install your new boiler installation. Our ongoing support ensures you are fully comfortable operating your new boiler and that it perfectly meets all your heating requirements.

Why choose MML Plumbing for your boiler installation?

At MML Plumbing, our team of experienced plumbers in London is dedicated to providing top-quality heating solutions for your home. We only install boilers from globally recognised brands, ensuring your home benefits from the highest standards of efficiency and reliability. 

Rest assured, all our installations are meticulously audited to maintain our high standards. Our dedicated team is always ready to assist via our web chat, providing guidance and answering any queries you may have.

Choose MML Plumbing for professional, efficient, and reliable boiler installation. Visit our website or contact us today to get started and enjoy the comfort of a new, efficient central heating system in your home.

Boiler replacement and new boilers were fitted the next day.

Boiler Repair vs. Replacement: Making the Right Decision

Gas Safe Engineers Boiler Installers

Upgrade Your Heating Today!

Experience the comfort of a warm home with our efficient boiler replacement services. At MML Plumbing, we specialise in fitting new boilers quickly and efficiently, with installations available as soon as the next day. Whether you’re looking to replace an old, inefficient boiler or upgrade to a modern, energy-efficient model, we’ve got you covered. Contact us now to schedule your boiler replacement and enjoy a warmer, cosier home in no time!

Book now to avoid the winter rush

Frequently Asked Questions ( FAQs) 

Radiator fitting by professionals in North London.

Boiler Installation Areas We Cover in London

North London

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