Get a Combi Boiler Conversion From £2900

Get a Combi Boiler Conversion with Master Gas London. Bid farewell to outdated gravity tank systems and welcome efficient, cost-effective heating & hot water. Unlock the advantages of a combi boiler and revolutionize your heating today!

Combi boiler conversion from £2900

Combi Boiler Conversion Offers

Vaillant boiler guide

Vaillant Combi Conversion From £3400

Vaillant combi boiler conversion, starting at just £3400. Experience efficient, and reliable heating today!

Worcester Bosch Greenstar 4000

Worcester Combi Conversion From £3400

Worcester Bosch Combi Boiler conversion from £3400. Experience all-in-one heating solutions today!

Baxi boiler installation

Baxi Combi Conversion
From £3300

Baxi 800 combi boiler conversion from just £3300. Enjoy efficient, all-in-one heating for your home today!

Glow worm boiler installer

Glow Worm Conversion
From £2900

Glow Worm combi boiler conversion from £2900. Discover efficient and reliable heating solutions today!

What Is a Combi Boiler Conversion?

Upgrade seamlessly with a Combi Boiler Conversion, shifting from an outdated gravity system to an efficient solution. Revamp your setup, removing storage tanks and cylinders to optimize space and enhance property efficiency. With a pressurized combi system, enjoy consistent mains pressure, eliminating the need for noisy pumps. Experience instant hot water without timers or delays, transforming your home with ease.

What's Included in a Combi Conversion?

Removal of Outdated Components

Our Combi Boiler Conversions include the meticulous removal of outdated components such as cold water storage tanks, expansion tanks, and hot water cylinders. Free up valuable space in your property while optimizing efficiency and organization.

Installation of Pressurized Combi System

Experience the benefits of a pressurized combi system with consistent mains pressure throughout your home. Say goodbye to noisy shower pumps as water pressure is provided directly from the mains supply, ensuring a powerful and uninterrupted flow.

Optimization of Space

Our conversions are designed to optimize space within your property. By eliminating unnecessary components associated with gravity systems, we enhance efficiency and organization, transforming your heating system without compromising on space.

Gas Safe Certified Engineers

Trust the installation of your Combi Boiler Conversion to our Gas Safe certified engineers. With a minimum of 5 years’ experience, our skilled professionals undergo thorough vetting to ensure top-notch services and compliance with safety standards.

Combi Boiler Brands We Install...

At Master Gas London, we’re proud to install quality boiler brands such as Worcester Bosch, Vaillant, Baxi, and Glow Worm. Our expert gas engineers are fully trained and experienced to install any model of boiler from these brands. As an approved installation provider for these leading manufacturers, you can trust that we have the knowledge and expertise to carry out quality high-end boiler installations. Contact us today to book a combi boiler conversion and experience the Master Gas London difference.

Why Choose Us

Expert Combi Boiler Conversion

Choose Master Gas London for our expertise in seamless Combi Boiler Conversions. Our skilled engineers specialize in transitioning outdated gravity systems to efficient, pressurized solutions, ensuring a hassle-free upgrade.

12-Month Workmanship Warranty

With Master Gas London, your peace of mind is our priority. Every Combi Boiler Conversion is backed by a 12-month workmanship warranty, ensuring the quality and durability of our installation. Experience confidence in our services and ongoing commitment to your satisfaction.

Transparent Fixed Pricing

Enjoy peace of mind with Master Gas London’s transparent fixed pricing. We prioritize honesty and clarity, ensuring that your Combi Boiler Conversion comes with no hidden costs. Trust us for a straightforward and cost-effective solution to elevate your heating system.

Exceptional After Care

Experience outstanding post-conversion support with Master Gas London. Our commitment extends beyond installation, providing exceptional aftercare services to ensure ongoing satisfaction and performance.

How to Book a Combi Boiler Conversion Survey?

Master Gas London online booking form


Schedule a free no obligation site survey to assess your options

Engineers at Master Gas London


A Master Gas London surveyor will attend to carry out the survey

We attend...
Central heating floor plan design


Our team will design and provide a fixed priced itemised quote

We design and quote...

Combi Boiler Conversion Survey's are Free

Our top objective at Master Gas London is to provide excellent service and an exceptional experience for our clients. In accordance with this commitment, we are glad to offer free, no-obligation site surveys for a combi boiler conversion.

Combi Boiler Conversion System Design...

Our team of skilled engineers and designers at Master Gas London have the knowledge and experience to modify and create any central heating system in accordance with your unique needs. There are no short cuts allowed in the careful design and execution of a combi boiler conversion. We have a strong dedication to providing work of the highest caliber and are quite proud of our accomplishments. The experts at Master Gas London are unrivaled in their talents when it comes to a combi boiler conversion.

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...


A combi boiler conversion refers to the process of changing or upgrading your existing heating system to a different type or technology, such as switching from an old gravity tank system to a combi boiler system.

There are several reasons why you might consider a combi boiler conversion, including improving water pressure, energy efficiency, reducing carbon footprint, lowering operating costs, or complying with environmental regulations.

The duration of a combi boiler conversion can vary depending on the complexity of the project and the specific requirements. It can range from a few days to a week.

While some inconvenience may be expected during the installation process, professional technicians strive to minimize disruption to your daily routine. They work efficiently and take measures to ensure your comfort.

In most cases, a combi boiler conversion leads to improved energy efficiency, which can result in lower energy bills over time. Newer systems often utilise advanced technologies to optimise energy usage.

It’s essential to follow the manufacturer’s guidelines for maintenance and schedule regular servicing to keep your new heating system running efficiently. Professional maintenance helps maximise performance and prolong system lifespan.