Upgrade to a modern, efficient combi boiler - installed by trusted Gas Safe engineers
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Great value conversions from top brands - supplied and installed by Gas Safe engineers
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From £2995
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From £2695
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From £2695
Value / Reliable
From £2650
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A Combi Boiler Conversion is shifting from an outdated conventional system to an efficient solution. Revamp your setup, removing storage tanks and cylinders to optimise space and enhance efficiency. With a pressurised 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.
We work with trusted brands such as Worcester Bosch boilers, Vaillant boilers, Baxi boilers, and Glow Worm boilers.
Converting to a combi boiler is an excellent option for many homeowners, offering benefits such as space-saving, energy efficiency, and instant hot water. However, it’s essential to consider factors like your existing heating system, hot water demand, and property layout to determine suitability.
Several factors can affect the cost of a combi boiler conversion, including the size and type of boiler, complexity of installation, additional components required, and any existing system modifications needed.
The conversion process involves removing your existing boiler and hot water cylinder, installing the new combi boiler, and making any necessary modifications to your heating system. Our experienced engineers will ensure a smooth transition, with minimal disruption to your home.
A combi boiler conversion is the process of replacing an outdated conventional or system boiler setup with a modern combi boiler. It involves removing hot water cylinders, cold-water storage tanks and external pumps to reclaim space and improve efficiency, delivering high-pressure hot water on demand.
At Master Gas London, the starting price of £2,695 covers the supply and installation of the new combi boiler, removal of the old boiler and any tanks or cylinders, and commissioning.
Converting to a combi boiler gives you a single compact unit that heats both your central heating and domestic hot water directly from the mains – no need for bulky tanks. That can free up storage space, simplify your system, and reduce running costs thanks to better efficiency.
Generally yes, especially for small to medium homes. Important factors include sufficient mains water pressure and the number of bathrooms. Homes with very high hot-water demand or weak water pressure may need extra consideration before converting.
A typical conversion takes around 1 to 2 days, depending on the complexity of removing old components, relocating any pipework, and commissioning the new boiler system. We can provide a more accurate timeframe based on your specific installation.
