Name

SIG Building Solutions

Legal name

SIG Trading Limited

Website

https://sigbuildingsolutions.co.uk

Company type

Private

Founded year

1945

Operating status

Operating

Headcount range

5,001–10,000 employees

Ownership category

akta.pro rank

Product category

Building Envelope Systems and Solar Canopy Structures

NAICS

Sheet Metal Work Manufacturing (332322)

SIC

Fabricated Structural Metal Products (3440), Prefabricated Metal Buildings & Components (3448)

akta.pro primary industry

Metal Roofing & Wall Panels (Architectural/Structural) (IMADACAG)

akta.pro secondary industry

Roof-Mounted Systems Integration (PV, Green Roofs, Roof Gardens, Snow Guards) (IMAFAMAI)

Keywords

• Metal roofing systems
• Building envelope cladding
• Overclad roof refurbishment
• Solar canopy structures
• Secondary steelwork fabrication

Headquarters

HQ city

Sheffield

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Building Envelope Systems (Gemello & Gemello Revive): SIG Building Solutions designs, manufactures, and supplies roof and wall panel systems — including the Gemello twin-skin system for new-build and Gemello Revive for refurbishment. Revenue is generated through product sales of panel systems, secondary steelwork (purlins, rails, eaves beams), and ancillaries (rooflights, gutters, flashings) to contractors, developers, and specifiers. Systems are typically specified by architects and ordered through contractors.
2. Solar Canopy Steel Structures: Design, manufacture, and supply of galvanised steel canopy superstructures for solar PV installations over car parks and external spaces. Products include structural posts, rafters, purlins, mounting rails, PV panel fixings, and interface beams. Sold directly to solar developers, contractors, and facility operators alongside energy infrastructure partners.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

SIG Building Solutions designs, manufactures, and supplies UK-made engineered building envelope and solar canopy systems for the industrial, agricultural, commercial, and public sectors. Its core offerings are the Gemello twin-skin roof and wall panel system for new-build, the Gemello Revive warranted overclad system for refurbishment, and Solar Canopy Structures that support photovoltaic panels over car parks, complemented by single-skin cladding, insulated panels, secondary steelwork, ancillaries, and bespoke metal fabrications.

Product overview

SIG Building Solutions is a UK-based manufacturer and supplier of high-performance building envelope systems, operating as a wholly owned subsidiary of SIG PLC. The portfolio consists of three core product lines: (1) Gemello® twin-skin roof and wall systems for new build construction, (2) Gemello® Revive overclad refurbishment systems for existing buildings, and (3) Solar Canopy Structures for renewable energy generation over car parks and outdoor spaces. These are complemented by a range of supplementary products including single and twin skin steel cladding, insulated panels, secondary steelwork (purlins, rails, eaves beams), and ancillary components (rooflights, gutters, flashings). The company also offers bespoke metal fabrication services for custom architectural requirements. All products are manufactured in the UK at the company's facility near Carlisle, with technical support provided through NBS Source specification tools.

Differentiator

Problem solved

Functional benefit

Brands

• Gemello: Twin-skin roof and wall panel system for new build projects, combining structural strength with design flexibility
• Gemello Revive
• Solar Canopy Structures

Products and services

• Gemello® Twin Skin Roof and Wall System A comprehensive, self-supporting twin-skin roof and wall panel system for new-build projects, combining structural steel profiles with non-combustible insulation. Available in a range of profiles, finishes, and colours for industrial, commercial, retail, office, healthcare, education, and leisure sectors.
• Gemello® Revive Overclad Roof System A warranted overclad roof refurbishment system designed to refurbish existing composite panel and twin-skin buildings. Includes Vapour Control Layer, bar and bracket spacer system, upgraded insulation, and profiled metal trapezoidal overlay, with compatibility for integrated Solfit PV panels. Backed by a 25-year system warranty, with U-values as low as 0.14 W/m²K.
• Solar Canopy Structures UK-manufactured galvanised steel superstructures (Z600 hot-rolled and cold-rolled steel) designed to support solar PV panels above car parks and outdoor spaces. Four core canopy types: Double Gull Wing, Double Mono, Single Mono (Incline/Decline), and Hot-Rolled Single Post. Includes integrated EV Beam technology for embedded EV charging without separate foundations. Designed for 25+ year lifespan.
• EV Beam Charger Integration for Solar Canopy Structures Canopy-integrated EV charging capability that mounts charge points directly onto the Solar Canopy Structure, routing power internally through the frame. Eliminates the need for separate foundations, plinths, or trenching for EV infrastructure.
• Single Skin Steel Cladding Single skin steel cladding suitable for warehousing, industrial, agricultural, and home outbuilding uses. Available in 0.5mm and 0.7mm thicknesses in both box profiles and corrugated formats.
• Twin Skin Steel Roof and Wall Profiles Steel roof and wall profile systems for rapid coverage and swift completion of weatherproof building envelopes, including spacers, fixings, sealants, guttering, flashings, and rooflights for comprehensive installation.
• Insulated Panels Self-supporting composite panels for building cladding with clean external lines, available in an extensive range of finishes and colours for industrial, retail, office, healthcare, education, and leisure sectors.
• Secondary Steelwork Manufactured Zed, Cee and Eaves Beam sections and accessories formed from hot dipped galvanised steel coil to BS EN 10346:2009 Fe E390G-Z275, with complete compatibility between section sizes for complicated roof designs.
• Ancillary Cladding Products Comprehensive range of accessories and components including rooflights, gutters, flashings, top hat profiles, cover strips, gaskets, fillers, fasteners and sealants to complete cladding projects.
• Bespoke Metal Fabrications Custom architectural fabrications and flashings manufactured in aluminium, steel and other metals to customer design. 2D and 3D shapes formed by pressing, folding, punching and welding in pre-coated or post-coated materials.

Quantifiable outcome

• ~10 tonnes CO2 savings per year (Holmeside Mobility Hub)
• +13 more outcomes

Named customers11 records

Segments9 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

14 partnerships are on record, tiered parent company — fundamental to company identity and operations, key installation partner, key project partner (main contractor), technology integration partner, primary epc contractor for renolit project, project partner, client/investor backing for renolit project, solar project developer partner, energy system integration partner, supply partner, installation partner, event/trade show partner and industry association membership.

• SIG plcparent company — fundamental to company identity and operationsOthersSIG Building Solutions is a brand of Building Solutions (National) Ltd, which is a wholly owned subsidiary of SIG plc, a FTSE listed construction products group. This parent-subsidiary relationship provides SIG Building Solutions with the backing of a major listed construction products group, including national brand credibility, established distribution networks, and corporate resources.
• Stace Roofing Ltdkey installation partnerImplementation/ SI/ Consulting PartnerStace Roofing Ltd is the roofing installer for Gemello Revive overclad system projects. Successfully installed the Gemello Revive system at St Nicholas Leisure Centre, Warwick (completed September 2025, one week ahead of schedule). Also completed award-winning roofing project recognised by NFRC in partnership with Step Energy/Stepnell Group.
• Stepnell Ltdkey project partner (main contractor)Implementation/ SI/ Consulting PartnerStepnell Ltd served as main contractor on the St Nicholas Leisure Centre project in partnership with Warwick District Council. Stepnell specified and managed the installation of the Gemello Revive overclad roof with integrated Solfit PV, working closely with SIG Building Solutions' technical team.
• Solfittechnology integration partnerTechnology or IntegrationSolfit provides integrated solar PV panel systems designed to integrate seamlessly with the Gemello Revive overclad roof structure. The Solfit PV system (252 × 425W panels at St Nicholas Leisure Centre) creates a fully weatherproof, energy-generating roof. The partnership enables combined roof refurbishment and solar integration in a single system.
• Seed Renewables Limitedprimary epc contractor for renolit projectStrategic or Co-development PartnerSeed Renewables Limited acted as EPC contractor for the RENOLIT solar PV car park project, coordinating the full installation of four wide Gull Wing Solar Canopy Structures. SIG Building Solutions worked closely with Seed Renewables throughout design, manufacture, and delivery to ensure successful on-time completion in a live 24/7 manufacturing environment.
• Zestec Renewable Energyproject partnerImplementation/ SI/ Consulting PartnerZestec Renewable Energy partnered with SIG Building Solutions and Seed Renewables on the RENOLIT solar PV car park project. Zestec played a role in delivering the renewable energy installation as part of the project team.
• Octopus Energy Generationclient/investor backing for renolit projectOthersOctopus Energy Generation provided backing for the RENOLIT solar PV car park project. The project was 'powered by Octopus Energy Generation', indicating Octopus as the energy off-taker or investor in the renewable energy asset.
• Eden Sustainablesolar project developer partnerImplementation/ SI/ Consulting PartnerEden Sustainable acted as solar project developer for the North Devon Hospice solar canopy project, proposing Solar Canopy Structures to deliver renewable energy and long-term operational savings for the hospice. SIG Building Solutions supplied and manufactured the steel canopy structures.
• AR Powerenergy system integration partnerTechnology or IntegrationAR Power engineered and installed the energy infrastructure for the Holmeside Mobility Hub project, including the 96-panel bifacial N-type PV array (56.64 kWp), 400 kWh commercial battery storage, and grid/EV charging integration. SIG Building Solutions provided the canopy structure and collaborated with AR Power on integrated design.
• Filon Productssupply partnerTechnology or IntegrationFilon Products supplied 100 linear metres of GRP rooflights matched to the Gemello Revive over-roof profile for the Caxton Hill Hertfordshire refurbishment project. This supply partnership ensures technical compatibility between the rooflight and overclad system.
• Superglasssupply partnerTechnology or IntegrationSuperglass supplied insulation products for the Gemello Revive refurbishment at Caxton Hill, Hertfordshire. The Superglass non-combustible glass fibre insulation was used in a bespoke cavity system to improve thermal performance. SIG specifies Superglass as a preferred insulation partner for Gemello Revive projects.
• Roof-Link Industrial and Commercialinstallation partnerImplementation/ SI/ Consulting PartnerRoof-Link Industrial and Commercial served as the installer for the Gemello Revive overclad refurbishment of the former Fluorocarbon site at Caxton Hill, Hertfordshire. The installation was managed by Vista Contracts South East Ltd.
• United Roofing Productsevent/trade show partnerChannel Partner/ Reseller/ DistributorGemello attended the Royal Cornwall Show alongside United Roofing Products, bringing together roofing expertise, refurbishment solutions, and technical support across a three-day trade event. United Roofing Products is a roofing products distributor with which SIG Building Solutions co-exhibits at industry events.
• National Federation of Roofing Contractors (NFRC)industry association membershipOthersSIG Building Solutions officially joined the NFRC in April 2026, reinforcing the company's commitment to quality, compliance, technical excellence, and industry best practices. NFRC membership provides access to a network of member contractors and industry standards.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Market position

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 SIG Building Solutions