What Unilux does

UNILUX GmbH is a German manufacturer of premium windows, doors, and glass façades, founded in 1955 by carpenter Nikolaus Meeth in Salmtal near Trier and formalized under the UNILUX brand in the 1970s. The company produces four material platforms — wood-aluminum, wood, PVC-aluminum, and PVC — across roughly twenty product lines including the LivingLine, ModernLine, DesignLine, PureLine, IsoStar, and IsoPlus window families, plus the FineLine façade system, OpenView all-glass corner, a range of lift-and-slide and balcony door systems, and the patent-pending UNILUX Plano zero-threshold barrier-free door system launched in January 2024. Manufacturing is concentrated at the Salmtal facility using computer-controlled machinery, with the company holding ISO 9001, ISO 50001, ISO 14001, FSC, PEFC, CE, DIN EN 18040, and DIN EN 1627 certifications.

UNILUX operates an exclusively indirect go-to-market model, selling exclusively through a network of over 500 authorized specialist partners across Germany and neighboring countries who handle sales, professional installation, and after-sale service; a separate architect and planner channel is supported directly with CAD drawings, technical data sheets, and on-site consultation. Pricing is quote-based and project-specific, with individual barrier-free doors ranging approximately EUR 200-2,000 (excluding installation) and full window restoration projects typically EUR 7,000-25,000. The company is a portfolio company of the AURELIUS private equity group, and in May 2023 acquired HBI Holz-Bau-Industrie GmbH & Co. KG, a 60-year-old German window and door maker, explicitly to strengthen its position in Europe and the US. Leadership transitioned in September 2025 with the appointment of Robert Brandon as CEO of the UNILUX Group, replacing Jürgen Beining.

Name

Unilux

Legal name

UNILUX GmbH

Website

https://unilux-windows.com

Company type

Private

Founded year

1955

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Unilux is a German premium manufacturer of wood-aluminum, wooden, and PVC windows, doors, and glass façades, serving residential homeowners, architects, and specialist partners across Europe and the US through a 500+ partner network since 1955.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442), Lumber & Wood Products (No Furniture) (2400)

akta.pro primary industry

Interior Doors (IMADAIAB)

akta.pro secondary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

Keywords

• Wood aluminum windows
• Window door manufacturing
• Glass facade systems
• Barrier-free threshold doors
• Energy efficient windows

Headquarters

HQ city

Salmtal

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Windows and Doors Manufacturing and Sales: UNILUX manufactures high-quality windows, doors, and glass façades at its own production facility in Salmtal, Germany. Products are sold exclusively through authorized UNILUX specialist partners who handle distribution, installation, and customer consultation. Revenue is generated through one-time product sales with professional installation services included.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

UNILUX manufactures and sells high-quality windows, doors, and glass facades at its own production facility in Salmtal, Germany. The portfolio spans wood-aluminum, wood, PVC, and PVC-aluminum constructions across multiple product lines (LivingLine, ModernLine, DesignLine, IsoStar, IsoPlus, etc.), complemented by lift-and-slide systems, balcony doors, and entrance doors. Products are distributed exclusively through a network of over 500 authorized specialist partners who handle sales, professional installation, and after-sale support.

Product overview

UNILUX is a German manufacturer of high-quality windows, doors, and glass facades based in Salmtal, operating since the 1970s. The company offers a comprehensive portfolio organized into four main product categories: windows (wood & aluminum, wooden, PVC & aluminum, and PVC materials across multiple lines including LivingLine, ModernLine, DesignLine, IsoStar, IsoPlus, Classic, Style, and Heritage), doors (entrance doors including UniqueLine with barrier-free Plano threshold, wood-aluminum and wooden Multiline, PVC entrance doors, and side entrance doors), glass facades (FineLine system and OpenView all-glass corner), and balcony/patio doors (lift-and-slide systems in multiple materials, balcony doors, and slide-and-fold systems). The company also provides accessories including zero thresholds, window handles, muntin bars, roller shutters, external Venetian blinds, and insect screens. Products are distributed exclusively through a network of over 500 specialist partners across Germany.

Differentiator

Problem solved

Functional benefit

Products and services

• Wood and Aluminum Windows Premium window line combining weatherproof aluminum exterior cladding with a comforting wood interior, offered across multiple design variants (LivingLine timeless, ModernLine contemporary, DesignLine with 1.5 million material/color combinations, DesignLine Privacy, and PureLine Integral). Targets homeowners and architects seeking durable, energy-efficient windows for new builds and renovations.
• Wooden Windows All-wooden window range offered in Classic, Style, and Heritage variants for traditional, contemporary, and historic building applications. Used in new builds, restoration, and heritage projects requiring authentic wooden window aesthetics.
• PVC and Aluminum Windows (IsoStar Aluminum) PVC and aluminum hybrid window system featuring a robust aluminum shell with PVC frame and triple-glazing for energy efficiency. Sold through specialist partners for residential and commercial applications.
• PVC Windows (IsoStar and IsoPlus) PVC window systems offering high durability with triple-glazing for energy savings (IsoStar) and enhanced insulation for superior energy efficiency (IsoPlus). Sold to cost-sensitive residential renovation and new build customers.
• Wood and Wood-Aluminum Entrance Doors (UniqueLine and Multiline) Customizable wood and wood-aluminum front entrance doors with maximum design freedom, including Multiline variants. The 2024 UniqueLine line offers an optional barrier-free Plano zero threshold. Sold through specialist partners to homeowners and architects specifying residential entrance doors.
• PVC Entrance Doors Low-maintenance PVC entrance doors with energy efficiency and security features, classified to DIN EN 1627 intruder resistance classes RC1 to RC3.
• Side Entrance Doors Side entry doors available in wood, wood-aluminum, and PVC variants, including barrier-free options for accessibility.
• Glass Facades (FineLine and OpenView All-Glass Corner) Glass facade systems including the FineLine wood and aluminum glass facade for modern, timeless architecture, and the OpenView all-glass corner system requiring no intermediate struts for expansive free views with invisible insulation and positive energy balance. Specified by architects for premium residential and commercial projects.
• Lift-and-Slide Systems Patio door lift-and-slide systems offered in wood and aluminum, IsoStar Aluminum (PVC and aluminum), PVC IsoStar, and PVC IsoPlus variants, providing large openings with thermal insulation. Used for balcony and patio access in residential projects.
• Balcony Doors Balcony doors available in wood and aluminum, wood, PVC and aluminum, and PVC variants to match the corresponding window systems in residential applications.
• Slide-and-Fold Systems Slide-and-fold patio door systems that fold away to create large open transitions between indoor and outdoor spaces.
• JumboLine Large-Format Panel Doors Large-format wood and aluminum panel surface doors up to three meters high for expansive openings, targeting premium residential and commercial projects.
• UNILUX Plano Zero Threshold System Patent-pending zero threshold system embedded 20mm into the floor, providing 100% barrier-free passage for balcony, patio, house, and side entrance doors. Meets DIN EN 18040 accessibility standards and is CE-approved with downward sealing moving parts, continuous sealing level, and removable profiles for easy maintenance. Available in black anodized and silver anodized finishes.
• Window Accessories (Handles, Muntin Bars, Roller Shutters, External Venetian Blinds, Insect Screens) Accessories sold alongside windows and doors, including handles with optional locking mechanisms for security, muntin bars for architectural division, roller shutters for sun protection, privacy, and intruder resistance, external Venetian blinds for light and solar control, and insect screens for ventilation without insect entry.

Quantifiable outcome

• Windows can reduce energy loss through windows to minimum, with triple glazing achieving U-values of 0.5-0.8 W/m²K
• +4 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core and minor.

• HBI Holz-Bau-Industrie GmbH & Co. KGcoreStrategic or Co-development Partner · 3 May 2023UNILUX signed acquisition agreement with HBI Holz-Bau-Industrie, a German manufacturer of windows and doors from Lower Saxony with 60 years of corporate history. The acquisition aims to strengthen UNILUX's position as a leading high-quality window and door manufacturer in Europe and the US. HBI will be integrated into UNILUX group, deepening cooperation and improving market position.
• UNILUX Specialist Partners (500+)coreChannel Partner/ Reseller/ DistributorOver 500 window construction specialists across Germany and neighboring countries operate as UNILUX specialist partners. Partners receive access to full product range, training programs, display pieces for exhibitions, reliable delivery, and marketing support. They handle sales, delivery, professional installation, and after-sale service.
• Energy ConsultantsminorImplementation/ SI/ Consulting PartnerEnergy efficiency consultants are required for BAFA funding applications and recommended for window replacement projects. They advise on thermal insulation values, U-values, and help determine optimal window solutions.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Schüco International: German-headquartered global manufacturer of aluminum and PVC window, door and façade systems. Closest direct peer: same product categories (windows, sliding doors, façades), same premium B2B/specialist-partner GTM, same architectural-specification channel as UNILUX.
• REHAU Windows: Major German polymer-based systems house producing PVC window and door profile systems. Direct peer in window/door systems manufacturing and specialist-partner distribution; overlaps with UNILUX's PVC and PVC-aluminum lines (IsoStar, IsoPlus).
• profine GmbH (KÖMMERLING / KBE / Trocal): German/European PVC profile manufacturer for windows and doors sold through specialist fabricators. Direct peer given overlapping material platform (PVC systems), specialist-partner go-to-market and European renovation focus.
• VEKA AG: One of the world's largest PVC window profile producers, headquartered in Germany. Competes with UNILUX's PVC and PVC-aluminum window lines via the same fabricator/partner network and is a benchmark for the volume PVC segment UNILUX only partially serves.
• Aluplast GmbH: German PVC window and door system manufacturer with strong European footprint. Direct peer in PVC window systems distributed through specialist partners; competes for the same renovation fabricator base.
• Internorm International: Austrian premium window and door manufacturer (wood-aluminum, PVC-aluminum, timber). Direct peer on premium wood-aluminum systems, energy-efficiency positioning and European specialist-partner distribution.
• Reynaers Aluminium: Belgian manufacturer of aluminum windows, doors, sliding systems and curtain-wall façades. Direct peer on aluminum window/door and façade systems, with overlap in architect/specifier channel and premium renovation projects.
• Gealan Fenster-Systeme: German PVC window profile manufacturer serving specialist fabricators. Direct peer in PVC window systems supply and renovation channel; relevant comparator for UNILUX's IsoStar/IsoPlus PVC lines.

Broad incumbents

• Solar Innovatives Bauen / Weru Group: Established German window and door manufacturer with broader portfolio across PVC, wood and wood-aluminum. Comparable in German specialist-partner distribution but operates as a broader incumbent across price tiers versus UNILUX's premium focus.
• Heroal: German manufacturer of aluminum window, door, roller-shutter and façade systems. Comparable on aluminum window/door systems and fabricator distribution; broader product breadth across sun protection and roller shutters than UNILUX.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Unilux