What Filon Products does

Filon Products Limited is a privately held UK manufacturer of Glass Reinforced Polyester (GRP) roofing and rooflight products, founded in 1957 and headquartered at Unit 3 Ring Road, Zone 2, Burntwood Business Park, Staffordshire. The company operates a pultrusion manufacturing process combining glass fibre mats with polyester resin to produce profiled sheets, rooflights, valley troughs, and chemical-resistant panels across more than 1,500 profile variants. Its product portfolio spans standard and reinforced GRP rooflights, factory-assembled insulating units (FAIRs), refurbishment sheets, the patented Fixsafe internal rooflight-replacement system, Monarch-F barrel vaults, Citadel chemical-resistant sheets, and the patented Heritage Valley trough for pitched roofs. Approximately 80 employees serve UK and selected international customers, with disclosed annual revenue in excess of £12 million (2022 figure) and ISO 9001, ISO 14001, BBA, and CE certifications underpinning regulatory credibility.

Filon makes money through one-time hardware sales of cut-to-length, weight-graded (CE18 through CE36) GRP products, complete Fixsafe installation kits, and bespoke Citadel-grade sheets quoted per project. Pricing is quote-based and not publicly disclosed; products are sold direct to roofing contractors via Business Development Managers and indirectly through a UK-wide distributor and merchant network managed by a National Sales Manager and regional sales agents. End-customer logos span industrial operators (British Steel, Yorkshire Water, Rolls Royce, Royal Mail), large retailers (Marks & Spencer), broadcasters (Granada TV), and distributors (Jewsons), with named case studies emphasising over-roofing refurbishment, chemical-environment installations, and Fixsafe-driven safety retrofits.

The commercial motion is sales-led and specification-driven, supported by CPD training, trade-association memberships (Composites UK, RIDBA, NFRC, MCRMA, LRWA, Rooflight Association), an in-house digital magazine (Roofscape), and the 2023-launched Profile Finder database. Distribution channels include UK merchant/reseller networks, direct contractor sales, regional sales agents, and an export function. The 2023 leadership transition from 45-year MD Steve Vickers to Mark Wilcox (now also RA Chairperson) anchors the company in the next phase of its lifecycle, alongside a 2021 strategic investment into Mayan Roofing Systems Ltd as its only disclosed corporate venturing action.

Name

Filon Products

Legal name

Filon Products Limited

Website

https://filon.co.uk

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

101–250 employees

Short description

Filon Products Limited is a privately held UK manufacturer of Glass Reinforced Polyester (GRP) roofing sheets, rooflights, valley troughs, and the patented Fixsafe safety-fix system, serving industrial, commercial, agricultural, and residential roofing contractors through a UK distributor network and direct sales.

Ownership category

akta.pro rank

Product category

GRP Industrial Roofing Products

akta.pro primary industry

Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA)

akta.pro secondary industries

Skylights, Roof Glazing & Glass Roofing Systems (IMADAHAK), Flashing, Edge Metal & Roof Accessories (IMADAFAJ)

Keywords

• GRP rooflights
• Profiled roofing sheets
• GRP valley troughs
• Industrial rooflights
• Over-roofing systems

Headquarters

HQ city

Burntwood

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. GRP Rooflight and Sheet Products: One-time sale of manufactured GRP products including rooflights, profiled sheets, valley troughs, and flat sheets. Products are sold cut to length with various weight types, fire grades, and colour options.
2. Complete System Solutions: Sale of complete replacement systems including Fixsafe kits with all necessary fasteners, sealants, and accessories required for installation.
3. Custom/Bespoke Manufacturing: Tailored specifications for Citadel sheets and other products to suit individual project requirements in corrosive environments.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

Filon Products manufactures glass reinforced polyester (GRP) rooflights, profiled roofing sheets, valley troughs, and complete roofing systems for industrial, commercial, and agricultural buildings. The company offers over 1,500 profile variants matching current and discontinued roofing systems, plus patented solutions such as the Fixsafe system for safe internal rooflight replacement and the Heritage Valley Trough. Products are made via a continuous pultrusion process combining glass fibre mat, polyester resin, and UV-protective films.

Product overview

Filon Products is a UK manufacturer of Glass Reinforced Polyester (GRP) products for the building and construction industry. The product portfolio centers on industrial rooflights and roofing solutions, comprising: Standard Range GRP rooflights and profiled sheets (available in over 1500 profiles); Enhanced Reinforcement/Supasafe rooflights (triple reinforced); FAIRs factory-assembled insulating rooflights; Refurbishment sheets; Fixsafe patented safety fixing system for internal rooflight replacement; Over-roofing refurbishment system; Internal rooflights/laylights (Filon Filites); Monarch-F barrel vault rooflights; Citadel Sheets for corrosive environments; and GRP valley troughs (V-Flow dry-fix range and Heritage Valley). Additional products include flat sheet and horticultural sheets. These products serve industrial, agricultural, and commercial sectors with daylighting, roofing, and valley drainage solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Standard Range GRP Rooflights UK-manufactured industrial rooflight sheets made from glass reinforced polymer resin (GRP) with light diffusing additives that scatter light to provide effective daylighting without hot spots, glare, or shadow. Available in weight types CE18, CE24, CE30, and CE36 (1.83 to 3.66 kg/m²) and supplied cut to length.
• Enhanced Reinforcement Range (Supasafe) Triple reinforced GRP rooflights made with polyester resins and glass fibre mats for enhanced strength and durability in demanding applications. Available as double or triple reinforced sheets for higher wind loads and safety requirements.
• FAIRs (Factory Assembled Insulating Rooflights) Translucent GRP sheets factory-assembled as insulating units ensuring even light distribution without glare, excessive shadow, or hot spots, with balanced insulation levels.
• Refurbishment Sheets (DR Refurb) Opaque coloured GRP sheets designed to replace old or damaged profiled roofing sheets in refurbishment applications, available in over 1,500 profiles matching current and most discontinued asbestos cement and metal roofing profiles.
• Fixsafe Safety Fixing System Patented safety fixing system allowing safe replacement of GRP roof sheets and rooflights from inside a building, eliminating the need to access fragile roofs from above. Complete system with sheets, fasteners, sealants, and accessories.
• Over-Roofing Refurb System Industrial over-roofing refurbishment system providing a new waterproof skin over existing roofs in any condition. Quick, trouble-free, and economical solution using profiled GRP sheets with 25mm or 60mm Profix spacers. Guarantees of 12-30 years depending on sheet weight selected.
• Internal Rooflights / Laylights (Filon Filites) Factory-assembled double-skin translucent internal rooflights designed for discontinued roofing systems, providing natural light transmission while maintaining balanced insulation levels for suspended ceilings and purlin linings.
• Monarch-F GRP Barrel Vault Rooflights Versatile and durable GRP barrel vault rooflights with arched design creating continuous vaulted rooflights. Designed for standing seam and secret fix roofing systems, continuous ridge applications, and flat roofs down to 25m minimum radius.
• Citadel Sheets Durable GRP sheets serving as a substitute for steel in hostile corrosive environments such as galvanizing plants, aluminium smelting works, fertiliser plants, composting facilities, coastal buildings, and chemical works. Available with vinyl ester resin grades and bespoke specifications.
• GRP Valley Troughs Glass reinforced polyester valley troughs for slate and tiled roofs. Includes V-Flow dry-fix valley troughs, Heritage Valley (close mitred valley), and wet lay/mortar bond options. Available in blue grey GRP in 3-metre lengths.
• Flat Sheet Flat GRP sheet products for various industrial, agricultural, and commercial applications, supplied cut to size as a complement to the profiled sheet range.
• Horticultural Sheets GRP sheets designed for horticultural applications including greenhouse and growing facility roofing, providing natural light transmission with durability suited to growing environments.
• ConSeal Valley ConSeal Valley is a wet lay / mortar bond GRP valley trough variant within the Filon Valley Troughs range, providing traditional installation method options for pitched roofs.

Quantifiable outcome

• Light transmission up to 92% with GRP sheets reducing need for artificial lighting and energy costs
• +4 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• NBS SourcecoreTechnology or IntegrationFilon is now live on NBS Source platform, enabling specification of Filon products within NBS specification software used by architects and specifiers.
• Composites UKcoreStrategic or Co-development PartnerTrade association for UK composite materials industry. Filon is an active member participating in industry standards and advocacy.
• RIDBA (Rural and Industrial Design and Building Association)coreStrategic or Co-development PartnerFilon is an active member and sponsor of RIDBA awards. Association champions excellence in rural and industrial building design and construction.
• Rooflight Association (RA)coreStrategic or Co-development PartnerFilon's Managing Director Mark Wilcox serves as Chairperson. Active participation in developing rooflight guidance and industry standards.
• NFRC (National Federation of Roofing Contractors)coreStrategic or Co-development PartnerFilon is a member and sponsors NFRC Scotland Awards. NFRC represents roofing contractors and sets industry standards.
• MCRMA (Metal Cladding and Roofing Manufacturers Association)coreStrategic or Co-development PartnerIndustry association for metal cladding and roofing manufacturers. Filon participates as GRP alternative to metal systems.
• LRWA (Liquid Roofing and Waterproofing Association)minorStrategic or Co-development PartnerTrade association focused on liquid roofing and waterproofing solutions. Filon participates as roofing system provider.
• Health and Safety Executive (HSE)coreStrategic or Co-development PartnerHSE positively responded to Fixsafe system as means of compliance with Working at Height Regulations 2005. Partnership in promoting safe working practices for fragile roofs.
• Weatherproofing Advisors LtdcoreChannel Partner/ Reseller/ DistributorLeading industrial roofing contractor adopted Fixsafe as 'first choice' system. Implemented Fixsafe policy for all projects with internal access capability.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Tata Steel (UK): Major UK steel and metal roofing producer. Competes indirectly with Filon via Colorcoat and profiled metal roofing systems specified in the same industrial and commercial refurbishment projects.
• Kingspan Group: Global building envelope manufacturer offering insulated metal panels, rooflights, and waterproofing membranes. Competes with Filon in industrial/commercial roofing, especially in over-roofing and insulated rooflight assemblies.
• VELUX Group: Global leader in roof windows and skylights for residential and commercial buildings. Broader incumbent with overlapping rooflight category but primarily focused on residential pitched-roof windows, not industrial profiled sheets.
• BMI Group (Braas Monier): Large pitched-roof and flat-roof systems provider in the UK. Comparable in pitched-roof valley and accessory categories, particularly as an alternative to GRP valley troughs.

Direct peers

• The Rooflight Company: UK specialist in architectural rooflights and glazed roof systems. Comparable in rooflight product category though with a higher-end residential/commercial focus versus Filon's industrial core.
• Brett Martin: UK-based manufacturer of plastic roofing and cladding sheets, including GRP and polycarbonate rooflights. Most direct competitor to Filon in profiled industrial rooflights and daylighting sheets.
• Hambleside Danelaw: UK manufacturer of GRP valley troughs, roofing accessories, and rooflight products. Directly comparable product range and customer base, especially in pitched-roof valley and rooflight categories.
• Ampelite (UK): UK and Ireland supplier of industrial and commercial rooflights including GRP and polycarbonate systems. Direct overlap with Filon in profiled rooflight sheets for warehouses and factories.

Emerging players

• Palram Industries: Global manufacturer of polycarbonate and PVC roofing sheets. Competes with Filon in polycarbonate rooflights and daylighting sheets, especially in agricultural and DIY-adjacent segments.
• Cox Building Products: UK rooflight and building envelope products manufacturer. Smaller, niche player in GRP and polycarbonate rooflights with overlapping customer base in UK roofing merchants.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@filonproducts
• Facebookfacebook.com/hashtag/teamfilon
• LinkedInlinkedin.com/company/filon-products
• Instagraminstagram.com/filonproducts

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

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 Filon Products