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

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

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

John Guest received an MBE for services to industry.

The first food-grade product range was launched when John Guest invented the world's first food grade push-fit fitting. Today our drinks dispense products still offer the ultimate quality, performance and efficiency.

John Guest pioneers the world's first push-fit blown fibre microduct connectors in 1980s to transform performance and installation efficiency. Today, millions of our products are trusted worldwide and remain best in class.

John Guest’s journey in automotive began when Ford asked us to design a new fuel line push-fit connector. Today, millions of our tube connectors are made each year and trusted by leading brands including Ford, Aston Martin, Ferrari, Mercedes, Porsche and BMW.

John Guest was awarded the Horner’s Award, presented for ‘imaginative and appropriate use of plastics’.

A British Design Award, presented by the Design Council for the design of the plastic Super Speedfit range of push-fit connectors.

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

John Guest is awarded The Queen's Award for Export Achievement.

In 1991 John Guest was awarded the Ford Motor Company Quality 1 Award, for Standard of Excellence, considered at the time to be the world's highest accolade of quality manufacture.

John Guest is awarded its second Queen's Award for Export Achievement.

JG Speedfit plumbing pipe was launched.

Recognised for a 250% increase in export turnover over six years.

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

Awarded for the development of the market-leading 'Twist and Lock' Push-fit fittings, 'Superseal' Pipe Insert, and plastic barrier pipe.

Presented by the London Borough of Hillingdon for significant social contributions, nominated by local voluntary groups.

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

JG PolarClean fittings for beer lines developed, providing the best products to keep draught beer cold and clean.

95% of bars in the UK use John Guest fittings in beer lines, making us the clear leader in this sector.

JG Speedfit wins 'Best Plumbing Brand', affirming its position as a world leader in push-fit plumbing and heating systems.

Reliance Worldwide Corporation Limited (RWC) successfully closed on the acquisition of John Guest Holdings Ltd.

JG Speedfit, an RWC brand, wins 'Best Plumbing Brand' for a second consecutive year.

RWC launched its first ever Reliance Valves range featuring push-fit connections from JG Speedfit. This new range perfectly blends the company’s world-leading technologies to transform the speed and simplicity of installations, as no tools are required.

John Guest – part of RWC’s family of brands – launched a new range of ultra-transparent Direct Buried Blown Fibre Straight Connectors.

The highly reliable, and class leading, brass and plastic push-fit systems from RWC’s SharkBite and JG Speedfit’s brands complement each other to make installers’ lives easier, improve efficiency and performance of air-rings, and reduce set up times by up to 50% in comparison to conventional methods.

RWC was nominated as a finalist for ‘Brand of the Year’ category at The Drum B2B Awards 2020.

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

RWC launched a new underfloor heating (UFH) solution to complement its existing JG Underfloor heating range – JG LowFit – specially designed to keep the overall floor height to an absolute minimum without compromising heat output.

With sustainability at the forefront of RWC’s vision, the business introduced new injection moulding machines at their Launceston Cornwall site where the company had previously used hydraulic injection moulding equipment producing a single part per cycle.

RWC was awarded the Governor Community Award by Harlington school. This is a reflection of the initiatives RWC have worked on with the school such as appointing a new school governor, providing work experience opportunities, supporting the Outward Bound Trust, as well as participating in career fairs.

RWC won the silver award at the B2B Marketing Awards 2022 for the best launch campaign for SharkBite: the fitting with more bite. Additionally, RWC were finalists in the best public relations or communications category for John Guest: 60 years of trust.

RWC won the Plumbing Supplier of the Year 2022 award at the PHG Supplier Awards, one of the largest gatherings of plumbing, heating, and bathroom suppliers and independent merchants in the industry.

RWC officially launched its new and improved packaging across their JG Speedfit and John Guest range. When embarking on the packaging rebrand RWC had two objectives: namely being more environmentally friendly and making product identification easier.

RWC was recognised for ‘Excellence in Living Your Values’ through embedding its culture and SPIRIT values - Safety, Passion, Innovation, Reliability, Integrity, and Together – into the very fabric of everything they do, from its operational transformation strategy to its sustainability and social impact initiatives.

JG Speedfit plastic plumbing push-fit manifolds are a durable solution that enables service pipework to be quickly and easily centralised at a single point.

RWC triumphed at the B2B Marketing Awards 2023 by clinching the coveted Gold Award for the ‘Best Multi/Omnichannel Campaign’. Recognising the creativity of its ’20 Grand in your Hand’ campaign, which centred on the promotion of its JG Speedfit Elbows, the award also celebrated its seamless execution and commercial success.