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Our timeline of achievements

A spotlight on the many milestones in our proud history.

Travel with us through the last 60 years

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John Guest and JG roundel.

The birth of the brand

John Guest started his business specialising in precision engineering and tool making for a diverse range of sectors.

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Production grows

Began producing complex die cast components and machining for major UK pneumatic valve manufacturers.

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JG Air fitting and icon.

Handling the pressure

John Guest created Super Speedfit, the world’s first push-fit solution for compressed air.

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Recognising achievement

John Guest received an MBE for services to industry.

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Getting into food

The first food-grade product range was launched.

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A direct buried fitting and icon.

From fibre to Ford

We developed the first push-fit fibre optic connector for BT and fuel connectors for Ford.

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JG Speedfit product and plumbing icon.

Plumbing transformation

JG Speedfit plastic push-fit technology for the plumbing and heating industry was launched.

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In the pipeline

JG Speedfit plumbing pipe was launched.

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Twist & Lock

JG Speedfit Twist & Lock plumbing and heating range with multi-seal technology was launched.

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Speedfit ultra flexible pipe

The launch of JG Layflat pipe to make cabling pipes faster and easier.

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A beer pump and drinks icon.

Pulling the perfect pint

JG PolarClean fittings for beer lines developed to keep draught beer cold and clean.

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Setting the bar

95% of bars in the UK use John Guest fittings in beer lines.

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Next generation connectors and valves

Introduced 30J impact resistant connectors for smooth blown fibre passage, as well as Reliance Valves with Speedfit connections for precise and efficient water control.

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World leaders in push-fit

As the world's largest push-fit manufacturer renowned for quality, reliability, innovation and expertise, we celebrate 60 years of trust.

Discover our products and services