Unvented Cylinder Service for Just £144

Ensure your Unvented Cylinder runs smoothly with our expert service, from £144. Count on Master Gas London for thorough maintenance and top performance. Book your hassle-free service today for peace of mind.

unvented cylinder service from £144

Unvented Cylinder Service Offers

Direct unvented cylinder prices with installation included

Cylinder Service
From £144

Unvented Cylinder Servicing for Just £144, Ensure Hot Water Reliability and Optimal Performance.

Direct Unvented cylinder prices all include installation

Service & Gas Safety
from £228

Get Peace of Mind with our Cylinder Service and Gas Safety Certificate Combo for £228

hive thermostat mini smart thermostat

Service & Smart Thermostat
From £364

Get a Smart Control Installed during your Unvented Cylinder Service From £364

Direct Unvented cylinder prices all include installation

New Unvented Cylinder
From £1395

Buy a New Unvented Cylinder with Installation Included from Just £1395.

What's Included in a Cylinder Service?

Visual Inspection

Our engineers will begin the unvented cylinder service by performing a comprehensive visual inspection. They will carefully examine all components, pipework, and connections to detect any indications of damage, leaks, or corrosion.

Test Safety Devices

We conduct comprehensive testing on all safety devices to ensure they are functioning correctly and effectively safeguarding your unvented cylinder system.

Pressure and Temperature Checks

We conduct thorough pressure and temperature checks to ensure your unvented cylinder is operating within safe parameters and delivering hot water efficiently.

Expansion Vessel Check

We check and pressurise any internal or external expansion vessels.

Issue Service Certificate

We issue a service certificate upon completion of the unvented cylinder service.

We Service all Brands and Types of Cylinders

At Master Gas London, we service all types and brands of unvented cylinders. Whether you have a MegaFlo, Gledhill, Kingspan or any other brand of unvented cylinder. Our experienced technicians have the expertise to handle a wide range of cylinder types, ensuring optimal performance and longevity.

Why Choose us

Experienced Professionals

Our team comprises of experienced professionals with extensive knowledge in cylinder servicing, ensuring top-notch service every time.

Transparent Pricing

We provide transparent pricing with no hidden costs, giving you peace of mind throughout the service process.

Prompt Response

Count on us for a prompt response to your service inquiries, ensuring minimal downtime and maximum convenience for you.

Customer Satisfaction

Our priority is your satisfaction. We strive to exceed your expectations with every service, ensuring your cylinders are in optimal condition.

How to Book a Cylinder Service?

Master Gas London online booking form


Fill out our short service booking form

Master Gas London gas engineer


Request your cylinder service online

Select a date
Master Gas London Van


We will confirm & book your service

We will take care of the rest

Cylinder Servicing, On Your Schedule

At Master Gas London, we provide swift and dependable unvented cylinder servicing. Our cylinder servicing is designed to fit your schedule, ensuring minimal disruption to your routine. Contact us today for reliable unvented cylinder servicing.

Trust us for Quality Servicing

At Master Gas London, we take pleasure in offering dependable, high-quality unvented cylinder servicing. Our team of skilled professionals always performs a full, thorough service to make sure your cylinder is operating at its peak efficiency. We go above and beyond to make sure that your unvented cylinder is operating effectively and safely, unlike many other firms who merely perform a visual check, which is not a service. With our comprehensive service, you can maximise your investment and feel secure knowing that your cylinder is in good hands.

Unvented Cylinder Replacements From £1395

Gledhill unvented cylinder installation

New Unvented Cylinder
From £1395

Need a new cylinder instead? Buy a new unvented cylinder with installation included from £1395
Pay by card or finance

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

What Our Customers Say...


The lifespan of an unvented cylinder can vary depending on factors such as usage, maintenance, and water quality. On average, a well-maintained unvented cylinder can last for approximately 15 to 20 years.

Unvented cylinders are safe when installed and maintained correctly. They are designed with various safety features, such as pressure relief valves and expansion vessels, to ensure safe operation and prevent over-pressurisation.

It is recommended to have your unvented cylinder serviced annually. Regular servicing helps identify any potential issues, ensures efficient operation, and extends the lifespan of the system.

Unvented cylinders offer several benefits, including high water pressure for multiple outlets, fast and powerful hot water delivery, no need for a separate cold water storage tank, and flexibility in system design.

Unvented cylinders can be integrated with various heating systems, such as conventional boilers, heat pumps, or solar thermal systems. A qualified engineer can assess your current system and recommend the most suitable configuration.

If you observe a leak or suspect any problems with your unvented cylinder, it’s crucial to contact a qualified engineer immediately. They can assess the situation, identify the cause, and perform the necessary repairs.

In most cases, it is possible to switch from a vented system to an unvented cylinder. However, it requires a thorough assessment of your current plumbing setup and may involve modifications to accommodate the unvented system.

Regular maintenance, including flushing and cleaning the system, helps maintain good water quality. It’s also advisable to have your water tested periodically to ensure it meets the required standards and doesn’t contain any contaminants.