What Aldra does

Aldra Fenster und T\u00fcren GmbH is a privately held, fourth-generation German family business founded in 1888 and headquartered in Meldorf, Schleswig-Holstein, that manufactures custom-made windows and entrance doors in four material variants: plastic (PVC), wood, wood-aluminum, and aluminum, with specialty lines including fire/smoke protection doors, emergency/panic doors, sliding elements, and roller shutters/sun blinds. Production uses modern automated systems with robotic handling for glass, stacking, hardware fitting, drying, color application, and quality control; finished goods carry continuous RAL G\u00fctezeichen certification (held since 1978) plus FSC (C153681) and PEFC (04-31-3265) sustainable-sourcing certifications, with a differentiated bio-attributed PVC window SKU as a sustainability offering. The company also sells connected/smart-home door and window automation products.

Aldra sells exclusively through a B2B2C channel of approximately 800 certified specialist dealers and installers (Aldra-Fachpartner) located across Germany; products are made to order based on individual homeowner or building-project specifications for dimensions, materials, colors, hardware, and accessories, with quote-based pricing set through the dealer. Go-to-market relies on a dual-marketing approach: end-consumer content marketing and a H\u00e4ndlersuche dealer-locator drive top-of-funnel demand, while the Mein Aldra App, Aldra-Experthek partner media database, Haust\u00fcr-Konfigurator, and Wissenswerkstatt training academy deepen Fachpartner productivity and switching costs. The company is managed by Gesch\u00e4ftsf\u00fchrer Jan-Peter Albers and Hanjo Junkelmann, has no disclosed external investors or parent company, and does not publicly disclose revenue.

Name

Aldra

Legal name

Aldra Fenster und Türen GmbH

Website

https://aldra.de

Company type

Private

Founded year

1888

Operating status

Operating

Headcount range

1–10 employees

Short description

Aldra is a fourth-generation German family manufacturer (since 1888, Meldorf) that produces custom windows and entrance doors in PVC, wood, wood-aluminum, and aluminum, selling exclusively through a network of approximately 800 certified Fachpartner dealers across Germany.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Metal Window and Door Manufacturing (332321), Wood Window and Door Manufacturing (321911)

SIC

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

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industry

Exterior Doors (IMADAIAA)

Keywords

• PVC window manufacturing
• Entrance door production
• Wood-aluminium windows
• Residential fenestration products
• Specialty door systems

Headquarters

HQ city

Meldorf

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Windows and Doors Sales: Aldra manufactures and sells custom-made windows and doors to end customers through their network of approximately 800 Fachpartner (specialist dealers/installers). Products are made to order based on individual customer specifications including dimensions, materials, colors, and hardware.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels8 records

Core offering

Aldra manufactures custom-made windows and front entrance doors in four material variants (plastic/PVC, wood, wood-aluminium, and aluminium) for residential new-build and renovation applications. Each product is individually manufactured to customer specifications covering dimensions, materials, colours, hardware, and glazing. The full portfolio also includes sliding elements, roller shutters and sun blinds, and specialty doors such as emergency/panic and smoke/fire protection doors. Products are sold exclusively through a network of approximately 800 certified Aldra-Fachpartner specialist dealers and installers in Germany, supported by digital ordering tools, CAD documentation, and the Wissenswerkstatt training academy.

Product overview

Aldra is a fourth-generation North German family business (since 1888) specializing in the manufacture of high-quality windows and entrance doors. The company produces its products in four material variants: plastic (PVC), wood, wood-aluminium, and aluminium. The core product portfolio includes various window types and entrance doors with numerous equipment variants, complemented by accessories such as roller shutters, sun blinds, and sliding elements. Special editions (Serie Basic, New ALUSTYLE) and specialty products (emergency/panic doors, smoke and fire protection doors) expand the range. Aldra operates through a network of nearly 800 specialist partners (Fachpartner) and provides digital tools including the Mein Aldra App for dealer management, the Aldra-Experthek knowledge database, and an online door configurator. The company emphasizes durability, energy efficiency, security, and sustainability (including FSC and PEFC certified products, and bio-attributed PVC windows) as core value propositions.

Differentiator

Problem solved

Functional benefit

Products and services

• Fenster aus Kunststoff (Plastic Windows) Durable windows manufactured from PVC, featuring high-quality hardware components for security, excellent thermal insulation, and weather resistance. Sold to homeowners through the Fachpartner dealer network in Germany.
• Fenster aus Holz (Wood Windows) Windows crafted from wood, offering natural aesthetics combined with modern insulation technology for energy-efficient residential living. Distributed via certified Aldra-Fachpartner.
• Fenster aus Holz-Aluminium (Wood-Aluminium Windows) Hybrid windows combining wooden interiors with aluminium exteriors, providing warmth of wood inside and weather-resistant protection outside. Sold through the Fachpartner dealer network.
• Aldra Fenster aus bio-attributed PVC (Bio-attributed PVC Windows) Sustainably produced windows using bio-attributed PVC material, representing a particularly sustainable window solution with reduced environmental impact compared to standard PVC. Sold through Fachpartner dealers.
• Haustüren aus Kunststoff (Plastic Entrance Doors) Front entrance doors made from plastic, offering reliable security and numerous customization options. Distributed through the certified Fachpartner network across Germany.
• Haustüren aus Holz (Wood Entrance Doors) Wooden entrance doors combining natural beauty with security features, custom-manufactured to specification. Sold through Aldra-Fachpartner dealers.
• Haustüren aus Holz-Aluminium (Wood-Aluminium Entrance Doors) Wood-aluminium entrance doors offering combination of natural aesthetics and robust weather protection. Distributed via certified Fachpartner dealers.
• Haustüren aus Aluminium (Aluminium Entrance Doors) Aluminium entrance doors providing maximum security, durability, and modern design options. Sold through the Fachpartner dealer network.
• Flucht- und Paniktüren (Emergency and Panic Doors) Specialized doors designed for emergency egress and panic situations, meeting safety regulations for commercial and residential buildings. Sold through certified specialist dealers.
• Rauch- und Brandschutz (Smoke and Fire Protection Doors) Doors designed to provide smoke and fire protection for buildings, meeting regulatory safety requirements. Distributed via the Fachpartner network.
• Schiebeelemente (Sliding Elements) Large sliding door systems providing generous openings with excellent thermal insulation values for unobstructed views. Sold through Aldra-Fachpartner dealers.
• Rollläden & Raffstores (Roller Shutters and Sun Blinds) External roller shutters and sun blinds providing protection against overheating in summer, additional insulation in winter, and effective visual and glare protection. Sold through the Fachpartner network.

Quantifiable outcome

• RAL certified since 1978 - continuous quality monitoring through independent testing institutes
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Fachpartner (Specialist Dealers)coreChannel Partner/ Reseller/ DistributorAldra operates through a network of approximately 800 certified Fachpartner (specialist dealers/installers) who sell and install Aldra windows and doors throughout Germany. Partners benefit from reliable logistics with weekly deliveries, fixed routing plans, regional contacts, technical support, training programs (Wissenswerkstatt), and digital tools including the Mein Aldra app and Aldra-Experthek portal.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Internorm International GmbH: Internorm is an Austrian/European manufacturer of PVC, wood-aluminum and timber windows and entrance doors distributed via certified partner dealers, comparable to Aldra in multi-material range and partner-led sales model.
• VEKA AG: VEKA is one of the largest producers of PVC profile systems for windows and doors, supplying both fabricators and competing as a finished-product manufacturer in segments that overlap directly with Aldra's plastic window line.
• Finstral AG: Finstral is a South Tyrolean family-run manufacturer of PVC, wood-aluminum and aluminum windows and doors sold through specialist dealer networks, similar to Aldra in premium positioning and material breadth.
• Salamander Industrie-Produkte GmbH: Salamander is a German manufacturer of PVC window and door profile systems under brands such as Salamander and bluEvolution, competing with Aldra's plastic-window offering and serving similar fabricator and dealer customers.
• Schüco International: Schüco is a leading German aluminum and PVC window, door and façade systems manufacturer serving residential, commercial, and high-end architectural projects, overlapping with Aldra's premium window and entrance-door positioning.
• profine GmbH: profine is a German PVC window-profile manufacturer (brands KBE, KÖMMERLING, TROCAL) that both supplies fabricators and markets finished windows, directly comparable to Aldra's PVC production capability.
• REHAU Group: REHAU is a major German manufacturer of PVC window and door profile systems as well as finished windows, directly competing with Aldra across PVC, wood-aluminum and material-hybrid offerings for residential and commercial construction.
• aluplast GmbH: aluplast develops and produces PVC window and door profile systems, including premium and energy-efficient series, and competes with Aldra for German dealer and fabricator relationships in the plastic-window segment.
• Weru GmbH: Weru is a German manufacturer of windows and front doors in PVC, wood, and wood-aluminum distributed through regional specialist dealers, closely mirroring Aldra's product mix and dealer-channel go-to-market.
• Hörmann Group: Hörmann is Europe's leading manufacturer of doors, including entrance, fire, smoke and security doors, directly overlapping with Aldra's Haustüren, Flucht- und Paniktüren, and Rauch- und Brandschutz product lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/aldra_fenster

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Aldra