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New Unvented Cylinder Installations

Superior Hot Water Performance with a New Unvented Cylinder

Fixed Price Installations

Rated 5 Stars on Google

Book In 3 Simple Steps...

Using mobilephone or tablet to fill out chosen service request

1.

Select your chosen cylinder from our Indirect or Direct cylinder price pages

Select...
Team of master gas london surveyors and engineers

2.

A Master Gas London surveyor will check the information provided.

We check...
Master gas london has a fleet of vans

3.

Once date and installation is confirmed, our engineers will install your new unvented cylinder.

We take care of the rest...

What Is a Direct and Indirect Cylinder?

A direct cylinder and an indirect cylinder are two types of hot water storage systems commonly used in households. The primary distinction is in how the water is heated and where the heat comes from.

 

A direct cylinder, also known as an unvented cylinder, is directly heated by an immersion heater or an electric element within the cylinder itself. It operates independently of the central heating system, providing hot water on demand. With a direct cylinder, hot water is delivered at mains pressure, resulting in strong water flow and increased water pressure for showers and tap

 

An indirect cylinder, also known as an unvented cylinder, on the other hand, depends on the central heating system to heat the water. It is connected to a boiler or another heat source, which heats the water indirectly through a coil or heat exchanger within the cylinder. The coil circulates the hot water from the central heating system, transmitting its heat to the water in the cylinder. 

 

The choice between a direct and indirect cylinder depends on various factors such as available space, and existing heating infrastructure. Direct cylinders are suitable for properties without a central heating system. Indirect cylinders, on the other hand, are commonly used in properties with a central heating system already in place, as they can efficiently utilise the heat produced by the boiler.

 

We Install all Cylinder Types

At Master Gas London, we specialise in installing all cylinder types, including direct, indirect, vented and unvented cylinders. Our skilled team can advise on the ideal solution for your hot water needs. Whether it’s a residential or light commercial project, we deliver top-quality installations with attention to detail and adherence to industry standards. 

direct unvented cylinder
Megaflo unvented cylinder

Indirect Unvented Cylinders

Looking for a new indirect unvented cylinder? Master Gas London has got you covered.

We Only Install Quality Brands

At Master Gas London, we believe in providing our customers with the best. That’s why we exclusively install unvented cylinders from renowned and trusted brands such as Heatrae Sadia who manufacture the MegaFlo and Gledhill. By choosing Master Gas London for your new unvented cylinder installation, you can have confidence that your new cylinder will be reliable and built to last.

Megaflo unvented cylinder
Gledhill direct unvented cylinder

Direct Unvented Cylinders

Need a replacement direct unvented cylinder? Master Gas London has got you covered.

Detailed Itemised Quotes

At Master Gas London, we prioritise transparency in our new boiler installations. We believe in complete clarity, which is why we provide detailed itemised quotes for all our work. With us, once a quote is provided, the price remains fixed, ensuring there are no hidden costs or surprises along the way. Our new boiler installations are designed to be affordable and flexible, catering to various budgets. 

Full detailed itemised quotes for all services and installations
Megaflo unvented cylinder

MegaFlo Eco 210L Indirect

£2229

Unbeatable Quality

At Master Gas London, we pride ourselves on quality workmanship and our award winning aftercare service. We will not be beaten on quality, and we strive to exceed your expectations every time. Contact us today for new boiler installations and boiler replacements.

Quality workmanship certified
Megaflo unvented cylinder

MegaFlo Eco 145L Direct

£1770

Our Guarantee

At Master Gas London, we take pride in our work and are dedicated to giving our clients the finest support we can. We provide a 12 month guarantee for all of our services, parts and workmanship. 

Master Gas London 12 month workmanship guarantee

Quality Hot Water Cylinder Installations

At Master Gas London, we are experts in delivering exceptional installations of high-quality hot water cylinders. Our dedicated team of skilled professionals is committed to providing top-tier service in every aspect.

 

We recognise the significance of a reliable and efficient hot water system to meet your needs. That’s precisely why we specialise in offering expert installations of premium hot water cylinders. Whether you require a cylinder replacement or a new installation, our extensive knowledge and expertise ensure precise and meticulous handling of the task at hand.

Who are our Engineers?

At Master Gas London, we only employ Gas Safe and G3 qualified engineers. Every engineer is highly experienced with a minimum of 5 years experience. All engineers have undergone thorough vetting to ensure that we only provide the best gas services in the UK.

Gas engineer in london

Why choose us?

Fixed and Fair Pricing

Our fixed and fair pricing provides transparency and value to our clients. We offer detailed itemised quotes without any hidden costs or surprise charges. Our competitive rates ensure affordability without compromising on quality. Once your price is fixed it’s fixed.

Our passion is your satisfaction

At Master Gas London, our purpose is to provide an enjoyable, stress-free experience for every customer. Our team is committed to exceeding your expectations and leaving you with a smile. 

Award winning after care

We pride ourselves on our award-winning aftercare service. We are dedicated to ensuring that our clients are satisfied with our work, and our team is always on hand to provide support and advice even after works are completed.

Upgrade to an Unvented Cylinder

New boiler installations and replacements

The Team

A Family Run Business

Reviews from Customers...

Metty Allen
Metty Allen
18/04/2023
I would definitely recommend Master Gas. They deliver a good service. They're reliable and take great care in carrying out my Gas & Plumbing work in a highly professional manner.
mary lewis
mary lewis
20/03/2023
Would highly recommend. They did a fantastic job with minimum disruption. The system they installed works perfectly as expected. They were always mindfal of the property. Came across as very knowledgeable and professional.
Ja Ma
Ja Ma
16/03/2023
Great service, highly recommended professionals. Ed was hard working and patient. Answered all my questions via Whatsapp and call even after the boiler was installed. Will be using again for sure.
Gillian Latiff
Gillian Latiff
01/03/2023
I had received an extortionate quote from another company and wanted to compare it to Master Gas London. I spoke with Ed and he was so knowledgable and honest. He took the time to explain the different boiler options and let me know the pros and cons of the different boilers. He was very patient and I am so appreciative of the time he took with regards to the choices I could make. It is such a shame I am located too far away to use this company, as their professional response and advice was outstanding.
Thomas Rapley
Thomas Rapley
11/12/2022
5 star! Amazing service. Highly recommend. Thank you Ed, will 100% be using master gas London for all my boiler needs.
Liam Andrews
Liam Andrews
19/10/2022
Highly recommend. Could not fault Ed and Tamer. They were efficient, on time, went out of their way to ensure we were pleased with the work, and took time to explain the new system. The work was finished to a high standard and all pipework routed beautifully.
ai Onishi
ai Onishi
06/06/2022
I was very anxious about my boiler to be fixed properly until I found Ed from the first telephone call, my anxiety has been eased off immediately because he was so polite, explained potential issues and he tried to book me in as quickly as possible even though he is very busy. He was so professional from beginning to end. At the site he investigated the problems and explained to me the issues and he didn’t leave until everything was sorted out properly. Today I was able to take a comfortable bath for the first time in a long time. Thank you Ed. Highly recommend and will definitely recommend to my friends!
Gracie-Mai Walker
Gracie-Mai Walker
28/04/2022
The team are the nicest people on earth so nice and warming, very trustworthy and didn’t leave til the job was done. Worked from 8am til 10pm one day just to get everything running. Couldn’t recommend a better company.
Ubaid Khan
Ubaid Khan
25/04/2022
Erin Delaney
Erin Delaney
19/02/2022
Ed and team came to install a new boiler a few months back and I've been meaning to leave a review ever since because they were so great. Worked all day and didn't leave us until everything was working. They are more than happy to stay in touch if there's any follow ups too which is great.

FAQ'S

At Master Gas London, we specialise in delivering top-quality hot water cylinder installations. Our expert technicians are dedicated to offering quality in all aspects of our service. We offer quality installations, utilise high-quality products, and ensure meticulous attention to detail to meet your hot water needs.

There are a few signs that indicate the need for cylinder replacement, such as inadequate hot water supply, frequent leaks or corrosion, unusual noises, or the age of the cylinder. Our team can assess your current system and provide recommendations based on its condition.

We install a wide range of hot water cylinders, including direct and indirect unvented cylinders and vented cylinders. We can help you choose the most suitable type based on your specific requirements and the existing heating infrastructure in your property.

The installation duration depends on various factors, including the complexity of the installation, the type of cylinder, and any additional modifications required. Our team will provide you with an estimated timeline during the assessment process, ensuring minimal disruption to your daily routine.

Our installers are highly qualified and experienced professionals. They possess the necessary certifications and training to carry out hot water cylinder installations safely and efficiently. We prioritise the skill and expertise of our team to ensure reliable and long-lasting installations.

Yes, we provide warranties on both the products we install and our installation workmanship. The specific warranty details will be discussed and outlined in your contract or agreement with us.

We specialise in upgrades and can assess your existing system to recommend the most suitable solution for your needs. Whether you require increased capacity, improved energy efficiency, or enhanced performance, we have the expertise to guide you through the upgrade process.

Scheduling an installation is easy! Simply fill out our installation form or contact our customer service team via phone or email, and they will assist you. We can even carry out a free site survey if required.