Cordek

What Cordek does

Cordek Limited is a UK-based, privately held construction materials specialist that manufactures technical solutions for complex construction requirements. The company is headquartered in Billingshurst (Slinfold), United Kingdom, and was founded in 1973. Its core technology platform is CNC hot wire cutting and precision digital machining of Expanded Polystyrene (EPS), marketed under the Filcor brand, which serves as the raw material backbone across the majority of its product lines. Filcor is manufactured in accordance with BS EN 13163:2012 and is 98% air, 100% recyclable, HFC/CFC/HCFC-free, and uses pentane as a blowing agent with a global warming potential below 5.

The product portfolio spans 12 market sectors, organised vertically: Infrastructure Formwork (bridges, drainage, sewers, tunnels), Superstructure Formwork (staircases, columns, arches, feature formers), Patterns & Moulds for off-site precast manufacturing, Engineered Wood Solutions, Ground Heave Solutions (Cellcore HX, Cellform HX, Cellvent HX, Heaveguard product families), VOC & Ground Gas Protection (Ventform, Tri-Gas Membrane, Puraflex VOC Membrane, Geocomposite Vent Mat, gas-resistant DPC and self-adhesive membranes), Structural Fill Solutions (Filcor EPS), Void Formers, Permanent Formwork (Sideform), Piling Products (Corbreak, Pilecor, Sheet Pile Infills, Sacrificial and Re-Useable Guide Wall Formers), Temporary Access (Temporary Ramps and Rail Platform Crossings), and Media/Entertainment Sets & Props. Named enterprise customers include AMEY Construction (St Margarets Head Railway Tunnel), J Murphy, Mott MacDonald, NORD Architecture (Greenwich Substation), and Baltimore Tower.

Cordek generates revenue through one-time product sales of construction materials and bespoke CNC machining/manufacturing services for project-specific formwork, patterns, and moulds. Its go-to-market is sales-led, combining a UK regional Technical Advisor network, a dedicated international sales contact (Adam Scaldwell), and a project design team that provides technical specification support. Products are specified into projects via an extensive online technical library containing NBS clauses, BIM objects, data sheets, MSDS, standard details, and installation guides, supporting self-service specification by architects, engineers, and contractors. Payment terms are end-of-month-following-delivery, with binding quotes valid for 30 days. Pricing is not publicly disclosed.

Name

Cordek

Legal name

Cordek Limited

Website

https://cordek.com

Company type

Private

Founded year

1973

Operating status

Operating

Short description

Cordek Limited is a UK-based construction materials specialist manufacturing CNC-machined Expanded Polystyrene (Filcor) technical solutions including formwork, ground heave protection, VOC/gas membranes, and piling products for contractors, engineers, and architects.

Ownership category

akta.pro rank

Product category

Construction Formwork & Protection Materials

NAICS

Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Plastics Foam Products (3086), Plastics Products, Nec (3089)

akta.pro primary industry

Structural Insulated Panels (SIP) & Foam-Core Composite Panel Manufacturing (IMANAIAK)

Keywords

• Construction formwork systems
• Expanded polystyrene products
• Ground heave protection
• VOC gas membranes
• Piling foundation products

Headquarters

HQ city

Slinfold

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Product Sales (Construction Materials): Cordek generates revenue through the sale of manufactured construction products including formwork systems, Filcor EPS structural solutions, ground heave protection, VOC and ground gas membranes, and piling products. Products are sold directly to contractors and engineers for use on construction projects.
2. Bespoke Manufacturing Services: Custom CNC machining and manufacturing of bespoke formwork, patterns, and moulds to project-specific requirements. Includes design assistance and technical specification support as part of the product-service offering.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Cordek manufactures and supplies technical construction solutions built around its proprietary Filcor Expanded Polystyrene (EPS) material platform, precision-machined using CNC hot wire cutting and digital manufacturing equipment. The company sells bespoke and standardized formwork for infrastructure and superstructure projects, ground heave protection systems, VOC and ground gas protection membranes and venting products, structural fill and void former solutions, permanent formwork, piling products (sheet pile infills, pile/slab connections, pile trimming systems, guide wall formers), and temporary access solutions such as rail platform crossings and ramps to construction contractors, engineers, and architects.

Product overview

Cordek is a construction materials specialist offering a comprehensive portfolio of technical solutions organized into distinct market sectors. The core product lines include Infrastructure Formwork (bridge, drainage, sewer, tunnel formwork), Superstructure Formwork (staircase, column, arch, feature formers), Engineered Wood Solutions, Ground Heave Solutions (Cellcore HX, Cellform HX, Cellvent HX, Heaveguard product families), VOC & Ground Gas Protection (Ventform, membranes, venting accessories, geocomposite products), Structural Fill Solutions (Filcor EPS products), Void Formers, Permanent Formwork (Sideform), Piling Products (Corbreak, Pilecor, Sheet Pile Infills, Guide Wall Formers), and Temporary Access solutions (Ramps, Rail Platform Crossings). The products primarily utilize Expanded Polystyrene (Filcor) as a core material, with offerings ranging from bespoke formwork services to standardized product lines.

Differentiator

Problem solved

Functional benefit

Products and services

• Infrastructure Formwork Bespoke and complex formwork solutions for infrastructure construction projects including bridges, drainage systems, sewers, and tunnels. Targeted at construction contractors and engineers requiring custom formwork for demanding civil engineering applications.
• Superstructure Formwork Bespoke formwork solutions for creating architectural features, finishes, and shapes in superstructure applications, including formwork for arches, columns, staircases (including spiral and helical), ribbed slab soffits, waffle formers, feature formers, and trough formers. For building contractors, architects, and structural engineers.
• Filcor EPS - Structural Fill Expanded Polystyrene (EPS) products used as a lightweight alternative to traditional fill materials for permanent load-bearing applications. Available in multiple compressive strength grades (Filcor 90 through Filcor 190) with optional flame retardant properties; 98% air composition, GWP <5, 100% recyclable. For construction contractors and engineers requiring lightweight structural fill (e.g. tunnel cavity filling).
• Filcor EPS Void Formers Expanded Polystyrene products used for the formation, shaping, and positioning of openings to reduce the weight of concrete structures. For construction contractors building concrete slabs and structures with planned openings.
• Ground Heave Solutions (Cellcore HX, Cellform HX, Cellvent HX, Heaveguard) Products for the protection of buildings from the effects of expansive soils and ground movement, including Cellcore HX B/S/Plus, Cellform HX System, Cellvent HX, Cellcore HG, Heaveguard, Heaveguard Pile Collars, and associated tapes. For housebuilders, foundation contractors, and groundworks specialists working on expansive clay soils.
• VOC & Ground Gas Protection Range of solutions for protection of buildings from hazardous VOCs and ground gases (methane, carbon dioxide, radon), including Ventform and Ventform Plus passive gas ventilation products, Tri-Gas Membrane, Puraflex VOC Membrane, gas resistant self-adhesive membranes, gas resistant DPCs, detailing strips, air bricks, cavity vents, top hats, vent bollards, ground level vent boxes, gas venting accessories, and Geocomposite Vent Mat. For housebuilders and contractors on contaminated land or sites with hazardous ground gases.
• Sideform Permanent Formwork Permanent formwork system for the construction of cast in-situ concrete ground beams and pile caps. Supplied in standard sheet sizes or manufactured to specific depths. For foundation contractors and groundworks specialists replacing traditional formwork materials.
• Corbreak Pile Trimming System Unique system to aid trimming down of piles during construction of piled foundations. Manufactured from lightweight Filcor, allows the top of the pile to be cracked and lifted off, avoiding hand-held tools, reducing breaking out time, and eliminating risk of cracking piles with heavy hydraulic breakers. For piling contractors.
• Pilecor Pile/Slab Connection System System designed to simplify forming a structural connection between a bored pile and a basement slab construction. Creates a soft zone within the reinforced concrete pile for pile/slab connections. For foundation contractors working on piled basement constructions.
• Sheet Pile Infills Quick, economical and lightweight solution to infilling the open pans in an exposed sheet pile wall, aiding extraction of sheet piles following construction of the concrete retaining wall. Manufactured from Filcor EPS to project-specific dimensions. For piling and foundation contractors.
• Sacrificial Guide Wall Formers Bespoke sacrificial formwork for the accurate construction of in-situ concrete piling guide walls for contiguous and secant piled walls. For piling contractors requiring pile alignment accuracy.
• Re-Useable Guide Wall Formwork Re-usable formwork for accurately forming in-situ concrete guide walls critical in the positioning and alignment of piles within contiguous and secant piled walls. For piling contractors.
• Rail Platform Crossings Lightweight temporary crossings between rail station platforms, individually designed to meet unique requirements including specific platform heights, spans, loading requirements, and rail configurations. Features Filcor core with plywood deck upper surface. For rail infrastructure contractors and maintenance providers.
• Temporary Ramps Temporary ramps manufactured from lightweight Filcor with a robust upper surface, providing access between floor levels of varying heights during construction and refurbishment projects. For construction and refurbishment contractors.
• Patterns and Moulds for Off-site Manufacturing Digitally machined patterns and moulds for a wide range of precast products in a variety of materials, supporting off-site manufacturing and Glassfibre Reinforced Concrete (GRC) production using CAD/CAM/CNC technology. For precast concrete manufacturers and GRC producers.
• Engineered Wood Solutions Advanced solutions for computer aided design and digital manufacture using engineered wood, from simple components through to complex assemblies for any application. For construction projects and creative industries.
• Geocomposite Vent Mat Sub-floor venting layer designed to provide excellent compressive strength and gas flow capacity for passive sub-floor dispersal or pressure relief systems beneath foundations of buildings, in conjunction with perimeter vents and gas membranes. For ground gas protection projects on contaminated land.
• Gas Venting Accessories Series of products designed to form robust connections between venting mediums and perimeter vent outlets, with HDPE construction ensuring compatibility with all Cordek venting systems. For ground gas protection installations.
• Ground Level Vent Box Practical and aesthetic method of venting ground gases from beneath a building out to the external atmosphere, available with various dimensions, geometries, and lid types. For ground gas protection projects.
• Media/Entertainment Sets & Props (Bespoke Production) Bespoke production of components and complex assemblies for film sets, theatrical productions, and props using CAD/CAM/CNC precision manufacturing. For creative industries including film, TV, and theatre producers.

Quantifiable outcome

• Filcor is 98% air, making it a resource-efficient material with small carbon footprint
• +3 more outcomes

Named customers5 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Stylite EPS: UK-based manufacturer of expanded polystyrene insulation and construction products. Direct overlap with Cordek in EPS-based building and civil engineering applications.
• Jablite: UK-based manufacturer of expanded polystyrene (EPS) products for construction including insulation, floor insulation, and civil engineering applications. Directly comparable to Cordek's Filcor EPS-based structural fill, void former, and formwork products serving UK construction.
• Kay-Metzeler (Kay-Cel): European manufacturer of expanded polystyrene products for construction and packaging, including EPS insulation boards and profile shapes. Comparable to Cordek on EPS production technology and construction-sector end uses.
• Vencel Resil: UK manufacturer of expanded polystyrene insulation and construction products. Operates in the same EPS-based construction materials space as Cordek, with overlapping applications in building foundations, ground floors, and civil engineering fills.

Broad incumbents

• Recticel: European manufacturer of polyurethane and rigid foam insulation products for construction and industrial applications. Comparable through rigid foam manufacturing capabilities and construction end markets, though primarily PU rather than EPS.
• BASF (Styrodur / Neopor): Global chemical company producing EPS raw materials (Styrodur, Neopor) used in construction insulation. Provides the upstream material that Cordek processes; comparable through shared end-market exposure to EPS-based construction products.
• Armacell: Global manufacturer of flexible foam insulation and engineered foams for building services, industrial, and construction applications. Comparable on foam manufacturing technology and construction sector exposure, though focused on flexible/elastomeric foams.
• Knauf Insulation: Global building materials manufacturer offering a broad range of insulation including EPS, mineral wool, and other products. Overlaps with Cordek on EPS-based construction insulation and ground/foundation solutions but operates at significantly larger scale and broader portfolio.

Others

• Cordek (Austrotherm group relationship): Austrotherm is a major European EPS/XPS insulation manufacturer. While not a direct UK competitor, it represents the type of larger continental EPS group that could expand into the UK specialty formwork/construction space Cordek occupies.

Regional players

• Sundolitt: Scandinavian-based manufacturer of expanded polystyrene products for construction, infrastructure, and packaging. Comparable to Cordek on EPS technology and construction applications, but primarily serves Nordic/Northern European markets rather than the UK.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks1 record

Key highlights7 records

Customer concentration

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Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cordek