Stronger Than Steel. Lighter To Install.

GRP delivers exceptional strength at a fraction of the weight of traditional metal alternatives

Weatherproof Today. Flood-Proof Tomorrow.

The world's first and only manufacturer of flood-resistant GRP enclosures

GRP Pioneers. Security Leaders.

Manufacturers of LPCB SR2, SR3 and SR4 Security Enclosures and Doors

Explosion-Relief GRP Products

Explosion-Relief Roofs, Substation Buildings & Roadside Gas Cabinets

Roadside Electrical Cabinets

Durable, IP65 compliant, with 4‑way roof design and variable lock options

Odour Control Covers & GRP Kiosks

Corrosion-resistant GRP housings & non-slip GRP covers

For almost 50 years, Kingsley Plastics Ltd has established itself as one of the UK’s most competitive and well‑respected manufacturers of GRP cabinets, enclosures and specialist composite structures. We have proudly designed, manufactured and installed tens of thousands of GRP housings for customers across the UK and worldwide, delivering reliable protection for essential industrial, utility and commercial applications.

We are also industry leaders in LPCB Security Rated GRP products, manufacturing independently certified SR2, SR3 and SR4 enclosures and door sets tested to LPS 1175 standards. Kingsley Plastics recently received recognition for one of our new products, winning “Innovation of the Year 2024” for our BSI Kitemark‑certified flood‑resistant kiosks, a testament to our commitment to engineering excellence.

Our GRP cabinets and enclosures continue to grow in popularity across the EV charging market, with major brands choosing Kingsley Plastics to house and protect their charging infrastructure thanks to our durability, safety and proven long‑term performance.

All Kingsley GRP products are designed to be environmentally acceptable, low‑maintenance and built for longevity, offering an expected service life of over 20 years – making them a dependable, cost‑effective solution for modern infrastructure demands.

With successful installations around the world, Kingsley Plastics is renowned for outstanding product quality, on‑time deliveries and exceptional cost competitiveness, supported by decades of experience and continual investment in innovation.

Browse our online shop or contact us for a quote today!

Limited Time Special Offers – Roadside Gas & Electric Cabinets

Product Range

GRP Kiosks & Housings

Products uniquely design to meet our customers own exacting needs, we are able to offer one of the widest range of GRP Housing & Kiosk products in the world…
Read More

Security Enclosures

Kingsley’s range of LPCB Security Rated GRP Enclosures offers complete flexibility to all our customers and can be offered in any rating of SR2, SR3 & SR4…..
Read More

Roadside Electrical Cabinets

All enclosures are corrosive resistant, low maintenance and are designed to protect instrumentation, pumping & metering equipment, control panels and…
Read More

Roadside Gas Cabinets

With the UK’s most well known & widest range of Industrial Gas Metering Cabinets, Kingsley’s range of PRS35 approved are specified for use by…
Read More

Odour control cover — Odour Control Covers

Our GRP Odour Control Covers offer the ideal solution for covering potable, sewerage & storage tanks of any kind. 100% corrosive resistant they are…
Read More

Industries Served

LPCB Security Rated GRP Products

Electrical

Oil & Gas

Telecoms

Fire Safety

Renewable Energy

Water Treatment

Other

Online Shop

Roadside Gas Cabinets
Each gas cabinet in our range is manufactured with a minimum of 3% ventilation as directed by PRS 35 December 2008. Read More

Roadside Electrical Cabinets
No other range of GRP Roadside Cabinets / Enclosures comes with IP65 as standard as well as a 4-way hipped roof and Kingsley-designed anti-splash doors and roof returns... Read More

Service Governor Modules
Designed with ease of installation / removal in mind, each unit is manufactured from highly durable GRP with an external high gloss finish... Read More

Consumables, Fixtures & Fittings
Items available include door hinges, door handles, vents and rawl bolts. Read More

Clients

News

15/10/2024

Kingsley Plastics Ltd Wins Innovation of the Year for Our GRP BSI Kitemark Flood Resistant Enclosures!

We are thrilled to announce that Kingsley Plastics Ltd has won the Innovation of the Year award at the North Devon Manufacturing Awards, thanks to our groundbreaking GRP BSI Kitemark Flood Resistant Enclosures! This award is a testament to the innovation and dedication we bring to designing solutions that meet the highest standards of protection …
Read More
12/08/2021

Kingsley Achieves A Perfect Score For A Perfect Company

Here at Kingsley we take the Health & Safety, the quality of our products, the environment & the surroundings of our staff & customers to heart as without the hard work of our staff, their families and our local community we wouldn’t have the successful company we see today. Such factors are intrinsically linked & …
Read More
13/05/2021

Kingsley – ‘The greatest gift is life itself’

Following a ‘close call’ to a local resident a plea was made on social media platforms for donations towards the purchase of a new defibrillator. Upon seeing the request our Group Chairman, Kevin Down immediately jumped in and offered for Kingsley to purchase the unit for the benefit of all local residents. This isn’t the …
Read More
12/04/2021

National Grid & Kingsley Composites – A ‘POWERFUL’ COMBINATION

With tens of thousands of GRP Housings installed across the UK, Europe & across the globe, it’s always appreciated to receive great feedback from any company and this time, from National Grid Metering (NGM). Kingsley designed, manufactured & installed a large GRP ‘Gas Governor’ Housing upon NGM’s Chatterley Whitfield S.T.O.R Power Generation site in a …
Read More
05/01/2021

Covid 19 Update – January 5th 2021

Covid 19 – Tuesday January 5th 2021 In line with current HM Governments guidelines & our customers written requests we wish advise all of our clients that Kingsley Composites manufacturing facilities will remain fully open for business, in a Covid 19 responsible manner. As one of the UK’s key leading suppliers to the UK’s Critical …
Read More
07/10/2020

Longterm Contract Award: National Grid

Kingsley are pleased to announce the latest award of a longterm design, manufacture & deliver contract for its wide range of GRP Housings by the National Grid. The contract, covering the next 3 years with further extensions for up to 5 years, is another example of Kingsley’s reputation of cost control, quality and the ability …
Read More