ALUK

What ALUK does

AluK is a privately held Luxembourg-headquartered designer, engineer, and distributor of aluminium construction systems serving residential, commercial, hospitality, healthcare, and education projects globally. Founded in 1949 and operating under the legal entity AluK S.A., the company maintains 11 direct country offices across Europe, Asia, the Middle East, and the Americas, complemented by authorised distributors reaching 70+ countries. Its product portfolio spans windows and doors (casement, turn & tilt, pivot), sliding doors including the Infineo frameless range with 21mm sightlines, folding doors (BSF70), curtain walling systems (AW86 unitised, SG structural glazing, SL conventional skylights), shutters and louvers, conservatories, and balustrades, supported by sub-brands such as Keller minimal windows for luxury residential and the AluK Home retail concept.

The company's go-to-market combines enterprise field sales with architects and developers from pre-tender stage, a channel/distributor network in non-strategic countries, and event-driven demand generation through major trade fairs such as BAU, BATIMAT, and FENESTRATION BAU China. Revenue is generated via hardware sales of aluminium systems and accessories, with no publicly disclosed pricing or subscription model. Notable technical platforms include the AW86 unitised curtain wall for high-rise envelopes, the AK PLUS hardware system which consolidated prior ranges and reduced SKU count by approximately 70, and the W75U unitised curtain walling tailored for India's high-rise market. Cradle to Cradle Certified Bronze - Full Scope on three systems, QUALICOAT Seaside certification, and the first Global Carbon Footprint Report in 2025 underpin its ESG positioning.

Name

ALUK

Legal name

AluK S.A.

Website

https://aluk.com

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

501–1,000 employees

Short description

AluK designs, engineers, and distributes aluminium windows, doors, and facade systems globally, serving residential and commercial developers, architects, and contractors through 11 direct country offices and distributors in 70+ countries.

Ownership category

akta.pro rank

Product category

Aluminium Building Envelope Systems

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Storefronts, Curtain Wall & Window Wall Systems (IMADAIAG)

akta.pro secondary industries

Windows (IMADAIAC), Exterior Doors (IMADAIAA)

Keywords

• Aluminium window systems
• Curtain walling systems
• Aluminium facade engineering
• Sliding door systems
• Building envelope solutions

Headquarters

HQ city

Hamme

HQ country

Belgium

HQ region

Europe

Offices12 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aluminium Building Systems: Design, engineering and distribution of aluminium construction systems including windows, doors, curtain walling, sliding doors, folding doors, conservatories, shutters, louvers and balustrades. Products are sold through direct representations and authorised distributors globally.

Go-to-market motion3 records

Distribution channels2 records

Marketing channels6 records

Core offering

AluK designs, engineers and distributes aluminium building envelope systems for residential, commercial, hospitality and public-sector construction. Its core offerings include windows, doors, sliding doors, folding doors, curtain walling systems, shutters and louvers, conservatories and balustrades. Products are sold via direct enterprise sales offices across Europe, Asia, the Middle East, the Americas and through authorised distributors in 70+ countries.

Product overview

ALUK is a global leader in the design, engineering, and distribution of aluminium construction systems, operating across 10+ countries with over 70 years of expertise. The company offers a comprehensive portfolio of building envelope solutions centered on aluminium: Windows and Doors (including casement, turn & tilt, and pivot systems under TT, KA, and Triton lines), Sliding Doors (Infinium frameless, SC series lift-and-slide, and classic sliders), Folding Doors (BSF70), Curtain Walling Systems (AW86 unitised, SG structural glazing, SL conventional), Shutters and Louvers, Conservatories, and Balustrades. Key product lines include the premium KA and TT window ranges, SC156 lift-and-slide doors with exceptional weather resistance, Infinium ultra-slim sliding doors with 21mm sightlines, and AW86 unitised curtain walling for high-rise construction. The portfolio also includes the acquired Keller minimal windows® brand for luxury residential projects, AK PLUS next-generation hardware, and region-specific solutions like the W75U for India's market. Products serve commercial, residential, hospitality, and public sector projects worldwide, with local customization for different markets.

Differentiator

Problem solved

Functional benefit

Brands

• Keller minimal windows®: Luxury minimal window, door, and glass house systems for high-end residential projects, acquired by AluK in 2020.
• AluK Home
• HEMERA

Products and services

• Windows and Doors Comprehensive range of aluminium casement windows, turn & tilt windows, and doors for residential and commercial applications, offering various thermal insulation options and hardware lines including the KA premium concealed-hinge series, TT classic series and the non-insulated 45DS system for tropical climates.
• Sliding Doors Aluminium sliding door systems including the Infinium frameless ultra-slim sliding door, the SC series lift-and-slide (SC95, SC115, SC140) and the SC156 ultra lift-and-slide with 1500Pa water tightness, covering classic, lift-and-slide and frameless configurations with thermal and non-insulated options.
• Folding Doors Aluminium folding door systems (BSF70 and BSF70 NI) that create open, flexible spaces with thermal break and non-insulated versions, panel configurations up to 1000mm width and 3000mm height, designed to maximise natural light while maintaining thermal insulation.
• Curtain Walling Systems Complete curtain walling solutions for high-rise and commercial buildings, including the AW86 unitised curtain wall (factory-fabricated frames installed by crane), SG50/SG60 structural glazing systems and SL50/SL60 conventional skylight systems with mullion width options of 50mm and 60mm.
• Shutters and Louvers Aluminium shutter and louver systems for ventilation control, sun shading and architectural aesthetics, applicable to residential and commercial projects.
• Conservatories Contemporary aluminium conservatory home extensions that maximise natural light with modular thermal insulation options, providing glazed living space extensions for residential customers.
• Balustrades Secure and durable aluminium balustrade systems conforming to highest industry requirements, for staircases, balconies and outdoor applications.
• Keller minimal windows® Luxury minimal window, door and glass house systems for high-end residential projects, distributed under the dedicated Keller minimal windows by AluK brand and website, targeting premium residential architects and homeowners.

Quantifiable outcome

• Up to 90% of aluminium used in construction is recycled, using 95% less energy than primary production
• +3 more outcomes

Named customers15 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature13 records

Partnerships

Ten partnerships are on record, tiered minor and core.

• Aluwest Yapi Sistemleri A.S.minorChannel Partner/ Reseller/ Distributor · 14 January 2025AluK Group partnership for Turkey and Central Asia markets through Aluwest Yapi Sistemleri A.S., led by seasoned industry expert Cagdas Taylan. Company brings over 22 years of experience. Serves Turkey, Algeria, Azerbaijan, Bulgaria, Georgia, Kazakhstan, Turkmenistan, Uzbekistan.
• Alu Soluções (Brazil Joint Venture)coreStrategic or Co-development Partner · 7 April 2023Expansion of global presence through establishment of joint venture project Alu Soluções in Brazil, extending AluK's reach in the South American market.
• Keller minimal windows®coreStrategic or Co-development Partner · 12 November 2020Acuquisition of Keller minimal windows®, a Luxembourg-based company specialised in design, manufacture and distribution of minimal window, door, and glass house systems for luxury residential projects. Integrated as Keller minimal windows by AluK to strengthen and expand presence in luxury residential segment.
• AIS Windows (Asahi India Glass Ltd)coreChannel Partner/ Reseller/ Distributor · 30 June 2020AluK entered into agreement with AIS Windows to supply AluK's world-class aluminium window and door systems to be manufactured and distributed in Indian market by AIS Windows. This collaboration enhances AIS's aluminium product portfolio through optimal glass selection and configuration combined with AluK's aluminium window system.
• MartiferminorImplementation/ SI/ Consulting PartnerContractor that installed the AluK systems for Westmark Tower project in London.
• GR TechnicminorImplementation/ SI/ Consulting PartnerAluK partner that manufactured and installed AluK systems for Baiduri Bank Headquarters project in Brunei. Completed in 2020.
• Secco SistemiminorChannel Partner/ Reseller/ DistributorPartner exhibiting with AluK and Keller minimal windows at Windows, Doors and Facades events in Saudi Arabia.
• Covebat ChâssisminorChannel Partner/ Reseller/ DistributorPartner with AluK Belgium that installed Triton aluminium windows and doors for My Hotel Malmedy project.
• Powell DobsonminorImplementation/ SI/ Consulting PartnerArchitectural firm that designed the Alex House Project for University of Wales, Trinity Saint David, featuring AluK's double facade curtain walling solution.
• AIS GlasxpertsminorChannel Partner/ Reseller/ DistributorStrategic collaboration announced in June 2026 combining AluK's globally benchmarked aluminium systems with AIS Glasxperts' advanced manufacturing, technical expertise and integrated execution capabilities for India's premium architectural segment.

Scale indicators3 records

Recent moves8 records

Expansion highlights8 records

Direct peers

• Reynaers Aluminium: Belgian-headquartered manufacturer of aluminium windows, doors, sliding systems, and curtain walls serving residential and commercial markets across Europe and globally. Closest geographic and product peer to AluK, including comparable unitised curtain wall offerings.
• Schüco: German global leader in aluminium and steel window, door, and façade systems for high-rise and residential construction. Directly competes across AluK's curtain wall and window product lines with similar engineering depth and European heritage.
• Technal: French-origin aluminium building systems brand (part of Hydro) producing windows, doors, sliding doors, and curtain walls. Competes head-to-head with AluK in European architectural fenestration, with strong overlap in commercial construction.
• Aluprof: Polish-headquartered aluminium systems manufacturer offering windows, doors, façades, and roller shutters across Europe. Major competitor in CEE and increasingly broader European fenestration markets, with comparable product breadth.
• Kawneer: US-based architectural aluminium products company offering windows, doors, and curtain wall systems for commercial and institutional construction. Comparable product range with strong North American presence overlapping AluK's US operations.
• Alumil: Greek aluminium extrusion and systems producer manufacturing windows, doors, and curtain walls for residential and commercial construction. A direct European peer with overlapping product portfolio and similar distribution model.
• YKK AP: Japanese-headquartered manufacturer of architectural aluminium products including windows, doors, and curtain walls, with growing Asia-Pacific presence. Comparable system-based fenestration model targeting commercial high-rise and residential markets.
• Ponzio SL: Italian/Spanish aluminium systems producer offering window, door, and curtain wall solutions for residential and commercial projects across Mediterranean Europe. Directly comparable product range and similar mid-market positioning.

Emerging players

• Vitrocsa: Swiss specialist in frameless and minimal sliding window systems for luxury residential and high-end commercial projects. Comparable to Keller minimal windows® (acquired by AluK) in extreme minimalist fenestration market.

Broad incumbents

• Hydro Extrusions: Norwegian-headquartered global aluminium extrusions giant supplying building systems (including Technal brand) plus mill-finished extrusions. Overlaps with AluK as a broader incumbent with much larger scale and integrated upstream operations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=WqI6pyQK6oo
• LinkedInfr.linkedin.com/company/aluk-france
• Xx.com/AluK_GB

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries14 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 ALUK