New Unvented Cylinder Installation From £1395

Buy a new unvented cylinder with installation included from just £1395. Enjoy the convenience and efficiency of mains pressure hot water throughout your home. Our comprehensive installation package includes everything you need for a seamless upgrade. 

Gledhill unvented cylinder installation

Unvented Cylinder Installation Offers

Direct unvented cylinder prices with installation included

Direct Cylinders
From £1395

Direct Unvented Cylinder Prices include installation from Only £1395

Direct Unvented cylinder prices all include installation

Indirect Cylinders
From £1499

Indirect Unvented Cylinder Prices include installation from only £1499

Included With All New Cylinder Installations?

Why choose us?

Expert Installations

Our team of experienced G3 registered engineers specialize in unvented cylinder installations. With years of expertise in the field, we ensure precise and reliable installations tailored to your needs.

Transparent Pricing

We believe in transparency and honesty when it comes to pricing. Our quotes are detailed and comprehensive, so you know exactly what to expect with no hidden costs or surprises.

Quality Assurance

At Master Gas London, we prioritize quality in every aspect of our work. From the products we use to the installation process, we maintain high standards to ensure long-lasting performance and customer satisfaction.

Exceptional Service

Customer satisfaction is our top priority. We go above and beyond to provide exceptional service, from the initial consultation to the completion of the installation. With prompt communication and attention to detail, we strive to exceed your expectations every step of the way.

Free Installation Surveys

Our team offers complimentary installation surveys. Whether through traditional site visits, virtual surveys via FaceTime, or assessments based on pictures provided by you, we tailor our approach to suit your convenience and requirements. Contact us today to schedule your free survey and take the first step toward a hassle-free installation experience.

How To Book a Cylinder Installation?

Master Gas London online booking form


Select your cylinder from our cylinder price pages

Engineers at Master Gas London


Our team will check the information provided.

booking confirmation


Once confirmed, we will install your cylinder.


New Unvented Cylinder Guarantee

At Master Gas London, we handle all aspects of your new unvented cylinder installation, including warranties and registrations with manufacturers. This ensures you can fully access the benefits of your cylinder’s coverage. Additionally, we provide a 12-month workmanship guarantee, offering added assurance of the quality and reliability of our installation services

We Only Install Premium Brands

Enhance your hot water system with Master Gas London’s Indirect Unvented Cylinder installations. We specialize in top brands like Heatrae Sadia (Megaflo), Gledhill, Baxi, and Vaillant. Our G3 registered engineers guarantee quality installations for an efficient hot water experience. Count on us for expert service – reach out to schedule your Unvented Cylinder installation and experience the Master Gas London difference.

We Install all Cylinder Types

At Master Gas London, we specialize 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. 

What Is a Direct Unvented Cylinder?

A direct 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 unvented cylinder installation, hot water is delivered at mains pressure, resulting in strong water flow and increased water pressure for showers and taps.

What Is a Indirect Unvented Cylinder?

An indirect cylinder relies 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. 

We cover London & Surrounding Areas

Master gas london are your trusted partner in all things gas, heating and hot water

A Family Run Business Since 2015

Master Gas London Reviews


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.