Over Five Decades of Pioneering GRP Solutions
For more than 50 years, Kingsley Plastics Ltd has been at the forefront of GRP( Glass Reinforced Plastic) innovation, designing and manufacturing enclosures, housings, kiosks, and cabinets that protect the infrastructure our society depends on.
From humble beginnings in a shed on a Hampshire farm, the company has grown into one of the most competitive and respected names in the construction, civil engineering, utilities, and energy sectors. Today, tens of thousands of Kingsley GRP cabinets and enclosures safeguard vital assets across the UK and overseas.
A Legacy of Growth and Firsts
Nearly half a century of continuous investment and ambition has driven Kingsley Plastics from a small family operation to a trusted partner to some of the biggest names in energy, oil & gas, water, and construction. At the heart of this success is a culture of innovation – consistently delivering industry firsts that have raised the benchmark for GRP performance:
Protecting Against Fire and Flood
In a world where safety and resilience are non-negotiable, Kingsley Plastics has placed particular focus on fire and flood protection.
Its fire-rated GRP range has been independently tested to BS476 Parts 6, 7, 20, and 21, with options up to 120 minutes fire resistance. Hundreds of Kingsley fire-rated sprinkler housings and control enclosures have been deployed across the UK and Europe, ensuring essential assets remain operational in high-risk environments.
Meanwhile, climate change has made flood resilience a national priority. Kingsley Plastics is proud to be the only GRP manufacturer worldwide with BSI-certified flood-resistant kiosks, giving utilities confidence that power, gas, and water services can continue even in extreme weather. These kiosks were recognised with the Innovation of the Year 2024 award – a testament to the company’ s role as a leader in climate-resilient infrastructure.
• First GRP company to achieve LPCB SR2, SR3, and SR4 certification – providing trusted high-security solutions for critical infrastructure.
• First to design and manufacture explosionrelief GRP enclosures for both electrical and gas installations.
• Fully certified fire-rated GRP enclosures, including BS476 Part 21 one-hour tested certification for load-bearing structures.
• The world’ s first BSI Kitemarked flood-resistant GRP enclosure, independently certified to withstand flood depths of up to 900mm, wave impact, and debris strike.