IG Lintels
IG Lintels is a UK-based manufacturer of steel lintels and masonry support systems, serving housebuilders, architects, commercial contractors, and construction merchants through a national merchant network and direct enterprise sales. Founded in 1958, it is a division of the Keystone Group, Europe's largest steel lintel manufacturer, with over 800 lintel types.
- Company typePrivate
- Founded1958
- HeadquartersCwmbran, United Kingdom
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What IG Lintels does
IG Lintels is a UK-based manufacturer of steel lintels and masonry support systems, founded in 1958 in Cwmbran, South Wales, and operating as a division of the Keystone Group, which claims to be Europe's largest manufacturer of steel lintels and masonry support systems. The company designs, manufactures, and supplies a portfolio of more than 800 lintel types spanning standard galvanised steel lintels (cavity wall, single leaf, solid wall, timber frame), special bespoke lintels (arch, bay, bow, corner configurations), the award-winning Hi-therm+ thermally efficient lintel that addresses Part L Building Regulations, and the Non-combustible Cavity Tray Lintel (NCCTL) for Document B compliance in buildings above 11 metres. Adjacent product lines include masonry support systems, windposts, brick slip feature lintels, sun lounge lintels, cavity trays, and accessories, plus the recently launched Keyfab structural steel fabrication service. The business operates from four manufacturing and distribution centres in Cwmbran, Swadlincote, and Cookstown, holding a stack of certifications including BBA, ISO 9001, ISO 14001, LABC, RIBA CPD approval, and BRE testing.
The company targets housebuilders, architects and specifiers, commercial contractors, and construction merchants across the UK and Europe. Its go-to-market combines a nationwide merchant distribution network for standard products with a direct enterprise field sales motion via Regional Sales Managers handling bespoke and large-project specifications. Technical support, including free scheduling, CAD and BIM access, a Psi Value Calculator, RIBA-accredited CPD presentations, and bespoke design consultation, is offered as a service differentiator rather than a separately billed line. Revenue is generated primarily through unit sales of physical lintel and masonry support products distributed via merchants, supplemented by bespoke lintel contracts with housebuilders and developers and the newer Keyfab structural steelwork service. Pricing is not publicly disclosed but is unit-based via merchant price lists, with bespoke pricing determined per project. The company also runs the Keyskills education initiative, providing training, materials, and apprenticeships support across colleges in partnership with other Keystone Group brands.
IG Lintels firmographics
Firmographics- Name
- IG Lintels
- Legal name
- IG Lintels
- Website
- https://iglintels.com
- Company type
- Private
- Founded year
- 1958
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- IG Lintels is a UK-based manufacturer of steel lintels and masonry support systems, serving housebuilders, architects, commercial contractors, and construction merchants through a national merchant network and direct enterprise sales. Founded in 1958, it is a division of the Keystone Group, Europe's largest steel lintel manufacturer, with over 800 lintel types.
- Ownership category
- akta.pro rank
IG Lintels industry classification
Industry- Product category
- Construction Building Materials
- NAICS
- Sheet Metal Work Manufacturing (332322)
- SIC
- Sheet Metal Work (3444), Prefabricated Metal Buildings & Components (3448)
- akta.pro primary industry
- Masonry Accessories & Reinforcement (Lintels, Ties, Mesh, Rebar) (IMADABAK)
- akta.pro secondary industries
- Masonry Prefabricated Elements (Panels, Lintels, Sills) (IMADABAM), Specialty & Alloy Steel (Stainless, Tool Steel, Electrical Steel, High-Strength/HSLA) (IMAKABAJ), Architectural & Miscellaneous Metals (Stairs, Railings, Ladders) (IMADACAE)
Keywords
Where IG Lintels is headquartered
LocationHeadquarters
- HQ city
- Cwmbran
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
IG Lintels business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Steel Lintel Products: Design, manufacture and supply of standard and custom made steel lintels. Products include cavity wall lintels, single leaf lintels, solid wall lintels, timber frame lintels, and specialized Hi-therm+ thermally efficient lintels.
- Building Component Systems: Extended range of building components including Brick Slip Feature Lintels, Steel Support Systems, Windposts, Cavity Trays, and accessories. One-piece prefabricated units with factory applied components.
- Keyfab Structural Steel: Structural steel design and fabrication service providing bespoke steelwork for construction projects. Full design-to-delivery service including confirmation drawings and CE marked steelwork.
- Technical Services: Technical advisory, scheduling, and specification support services including CPD presentations for architects and e-learning programs for merchant employees.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Standard Steel Lintels |
| Unit Pricing | Pay-as-you-go | Hi-therm+ Lintels |
| Other | Multi-year contract | Special/Bespoke Lintels |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels7 records
IG Lintels product offering
Product offeringCore offering
IG Lintels designs, manufactures, and supplies steel lintels and masonry support systems for the construction industry across Europe. The company offers over 800 lintel types including standard cavity wall lintels, special bespoke lintels, and the award-winning Hi-therm+ thermally efficient range. Operations extend to windposts, brick slip feature lintels, non-combustible cavity tray lintels, and structural steel fabrication services through Keyfab.
Product overview
IG Lintels is a manufacturer of steel lintels and building components, offering a comprehensive portfolio of over 800 lintel types as part of a unified product ecosystem. The core offering centers on Standard Steel Lintels (cavity wall, single leaf, solid wall, timber frame configurations) and Special Steel Lintels (custom arch and geometric designs), complemented by the award-winning Hi-therm+ thermally efficient lintels. The portfolio extends to Masonry Support Systems, Windposts, Brick Slip Feature Lintels, and the Non-combustible Cavity Tray Lintel for high-rise compliance. Keyfab provides structural steel fabrication services, while accessories including Cavity Trays, Weep Vents, and Stopends complete the installation system. The Keyfix sub-brand addresses non-combustible cavity requirements. Products are available in galvanised steel and stainless steel, with a full bespoke design service supporting architectural specifications.
Differentiator
Problem solved
Functional benefit
Products and services
- Hi-therm+ Lintels Award-winning thermally efficient steel lintels that are up to 5 times more thermally efficient than standard steel lintels, featuring a one-piece top hat design for reduced thermal bridging and improved SAP calculations. BBA Approved and compliant with Part L 2013.
- Standard Steel Lintels Wide range of galvanised steel lintels including 100mm Inner Leaf, Wide Inner Leaf, Wide Outer Leaf, Eaves, Porotherm, Timber Frame, Single Leaf, Box, Solid Wall, Extended Range, and Stainless Steel variants with various load ratings for residential and commercial construction.
- Special Steel Lintels Custom, bespoke steel lintel designs including Full Arch, Segmental Arch, Parabolic Arch, Apex and Half Apex, Venetian Arch, Gothic Arch, Bow, Square Bay, Splayed Bay, and Corner lintels with free design service for architects and designers.
- Sun Lounge Lintels Specialist lintels for sun lounge and orangery constructions including Standard, Apex, Venetian, Bow, Square Bay, and Vaulted Ceiling options.
- Masonry Support Systems Systems for supporting outer leaf materials including brickwork, fairface blockwork, rendered blockwork, and cut and reconstituted stone, with various fixing options to reinforced concrete and steel sections.
- Windposts Vertical structural supports spanning between floors to provide lateral support for large panels of brickwork. Available in DU, U, and LP types, manufactured from grade 304 stainless steel with various connection options.
- Brick Slip Feature Lintels One-piece prefabricated lintels with factory-applied brick slips for architectural detailing. Includes Brick Feature Lintels, Lightweight Brick Headers, and Lightweight Brick Sills in various arch styles.
- Non-combustible Cavity Tray Lintel (NCCTL) Class A1 non-combustible stainless steel single leaf lintel with combined cavity tray for Document B compliance in buildings over 11m high. Features patented mechanically fixed stopends.
- Keyfab Structural Steel Fabrication Full structural steel design and fabrication service including design, pricing, on-site builder support, confirmation drawings, and CE Marked Steelwork to EN10-90 Execution Class 2.
- Cavity Trays Lightweight polypropylene cavity trays in flat-pack format for damp proofing applications. Pre-creased for easy on-site folding, available in three sizes covering various roof pitches and cavity widths.
- Accessories Supporting products including Cavity Trays, Universal Arch, Weep Vents, and Stopends for complete lintel installation and moisture management.
Quantifiable outcome
- Hi-therm+ is up to 5 times more thermally efficient than standard steel lintels
- +3 more outcomes
Companies that use IG Lintels
Customer profileNamed customers8 records
Segments4 records
Ideal customer profiles4 records
IG Lintels technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature5 records
IG Lintels partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered flagship, core and minor.
- Keystone GroupflagshipIG Lintels is a division of the Keystone Group, Europe's largest manufacturer of steel lintels and masonry support systems. The group includes Keylite Roof Windows, Keystone Lintels, IG Masonry Supports, Keyfix, Smartroof, and Stockgap. IG became part of the Keystone Group in 2006.
- KeyfixcoreKeyfix is a related brand under Keystone Group setting new standards in delivery of non-combustible cavity systems for Document B compliance in buildings over 18m. Both brands collaborate under the Keyskills education initiative.
- IG Masonry SupportcoreIG Masonry Support provides specialist shelf angle masonry support systems for brickwork, fairface blockwork, rendered blockwork, and cut stone. Collaborates with IG Lintels under Keyskills education initiative.
- Keystone LintelscorePart of Keystone Group brand family. Collaborates with IG Lintels under Keyskills education initiative providing free training support and materials to colleges and industry bodies.
- Keyskills Initiative PartnerscoreKeyskills is an education initiative by Keystone Group involving IG Masonry Support, IG Lintels, Keyfix, and Keystone Lintels. Supports education sector for over 10 years promoting modern construction methods through free training and materials. Brands involved: IG Masonry Support, IG Lintels, Keyfix, and Keystone Lintels.
- ConstructionlineminorIG Lintels holds Constructionline Gold Certificate and Facilitiesline Gold Certificate for supply chain compliance and procurement standards.
- BMF (Builders Merchant Federation)coreBMF is an approved training partner for IG's e-learning platform, providing product information to merchant employees through online academies.
- NMBScoreNMBS is an approved training partner for IG's e-learning platform, providing product information to merchant employees.
Scale indicators6 records
Recent moves9 records
Expansion highlights5 records
IG Lintels competitors and assessment
Company assessmentDirect peers
- ACS Stainless Steel: ACS Stainless Steel manufactures stainless steel lintels and masonry support products for the UK and Irish construction markets. It is a direct competitor in the stainless and special lintel segments where IG also operates.
- Catnic: Catnic is one of the UK's largest steel lintel manufacturers (owned by Tata Steel) producing standard, thermal and special lintels. It is the most direct head-to-head competitor to IG in UK merchant-distributed steel lintels.
- Birtley Group: Birtley Group manufactures steel lintels and builders' metalwork products in the UK, including standard and special lintels for residential and commercial construction. It competes with IG across standard, thermal and bespoke lintel ranges.
- Naylor Lintels: Naylor is a UK manufacturer of concrete and steel lintels serving housebuilders and merchants. Its lintel range and merchant distribution model overlap directly with IG's standard cavity wall lintel business.
- William Brown Steel Fabrications: William Brown manufactures steel lintels and bespoke metalwork in the UK. It competes with IG for special and bespoke lintel specification on commercial and residential projects.
Broad incumbents
- Voestalpine: Voestalpine is one of Europe's largest steel manufacturers and produces construction-related steel products (including through subsidiaries like Metsec). It is a broad incumbent in the upstream steel and engineered metal products space feeding UK construction.
- Tata Steel: Tata Steel is the parent of Catnic and a major European steel producer with galvanised steel coil and construction product divisions. As Catnic's parent, it represents a broader incumbent force in UK lintel and steel building products.
Emerging players
- Leviat: Leviat (formed from the merger of Ancon, Halfen and others) is a major manufacturer of masonry support, windposts, anchors and structural fixings. It overlaps with IG's masonry support, windpost and fixing product lines.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks5 records
Key highlights7 records
Customer concentration
IG Lintels social profiles
Digital presenceIG Lintels compliance and trust
Trust signalCompliance17 records
IG Lintels financial estimates
Financial estimateRevenue estimate
Valuation estimate
IG Lintels leadership team
Management profileNumber of profiles
Profiles3 records
IG Lintels funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
IG Lintels M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about IG Lintels
What does IG Lintels do?
IG Lintels designs, manufactures, and supplies steel lintels and masonry support systems for the construction industry across Europe. The company offers over 800 lintel types including standard cavity wall lintels, special bespoke lintels, and the award-winning Hi-therm+ thermally efficient range. Operations extend to windposts, brick slip feature lintels, non-combustible cavity tray lintels, and structural steel fabrication services through Keyfab.
Is IG Lintels a public or private company?
IG Lintels is a private company. It is classified as corporate owned and is currently operating.
When was IG Lintels founded?
IG Lintels was founded in 1958. It employs 51 to 100 people.
Where is IG Lintels based?
IG Lintels is headquartered in Cwmbran, United Kingdom, in the Europe region.
How does IG Lintels make money?
Four revenue lines are on record. Steel Lintel Products are the primary driver. The others are building Component Systems, keyfab Structural Steel and technical Services.
Who are IG Lintels's main competitors?
Direct peers on record are ACS Stainless Steel, Catnic, Birtley Group, Naylor Lintels and William Brown Steel Fabrications. Broad incumbents are Voestalpine and Tata Steel. Leviat is listed as an emerging player.
Does IG Lintels have an API?
No public API is recorded for IG Lintels.
What industry is IG Lintels in?
IG Lintels's product category is Construction Building Materials. Its primary akta.pro industry code is IMADABAK, Masonry Accessories & Reinforcement (Lintels, Ties, Mesh, Rebar), with a secondary code of IMADABAM, Masonry Prefabricated Elements (Panels, Lintels, Sills). Its NAICS code is 332322 and its SIC code is 3444.