What WEKU does

WEKU GmbH & Co. KG is a second-generation, family-owned German manufacturer and installer of custom-made windows, doors, and gates, headquartered in Wertheim-Bettingen and operating across seven regional branches (Munich, Nuremberg, Augsburg, Koblenz-Urmitz, Stuttgart, Oberhausen, plus its HQ). Founded in 1996 with approximately 170 employees, the company produces PVC and aluminum windows, plastic and aluminum front doors, lift-and-slide doors, security doors, and gates in-house using VEKA profile systems, complemented by sun protection (roller shutters, awnings, Raffstores), insect protection, security hardware (WEKU Safe 01/02, safety glass, alarms), accessibility products (Elan, Elite, and EuroLift stairlifts), and a Smart Home integration layer.

The portfolio is organized into three window series (Naturis, Purano, Sensano) and spans both new-construction and renovation/Sanierung use cases, with technology centered on triple glazing, concealed fittings, and VEKA Umwelttechnik's closed-loop PVC recycling. WEKU generates revenue through one-time project-based sales of custom-manufactured, made-to-measure fenestration products, priced individually per project (no public price list) and delivered with on-site measurement, own-team installation, and after-sales support. The go-to-market is direct-to-consumer and direct-to-developer: field sales consultants, in-house phone and WhatsApp consultation, a freecall lead line, online forms, and a content hub (WEKU Magazine), all feeding an end-to-end owned channel with no resellers or dealers.

Revenue mechanics are anchored by a dedicated WEKU Förderservice that integrates KfW and BAFA government-subsidy processing into the sale, plus an energy-consulting service. The primary customer segment is German residential homeowners replacing or installing windows, doors, and gates, with secondary demand from new-construction developers, building trades, and accessibility-focused renovations. There are no public revenue disclosures, no external funding events, and no M&A activity in the source data.

Name

WEKU

Legal name

WEKU GmbH & Co. KG

Website

https://weku.de

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

51–100 employees

Short description

WEKU is a second-generation, family-owned German manufacturer and installer of custom-made windows, doors, and gates, producing in-house from Wertheim-Bettingen and serving residential homeowners and developers across Germany through seven own regional branches and direct field sales.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Metal Window and Door Manufacturing (332321), Blind and Shade Manufacturing (33792)

SIC

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

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

akta.pro secondary industries

Interior Doors (IMADAIAB), Gate Automation, Access Control & Operator Repair (HSAIAJAD)

Keywords

• Custom window manufacturing
• Residential door installation
• PVC fenestration products
• Garage gate systems
• Insect protection solutions

Headquarters

HQ city

Wertheim

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sale of Custom Windows, Doors, and Gates: WEKU designs, manufactures, and installs custom-made windows, doors, and gates for residential homeowners and property developers in Germany. Revenue is generated through direct project-based sales encompassing consultation, on-site measurement, manufacturing, and professional installation. Products include plastic windows, aluminum front doors, sliding doors, and garage gates, each sold as bespoke, project-specific orders.
2. Energy Efficiency Funding Advisory Services: WEKU provides subsidized energy efficiency advisory services to help customers access KfW and BAFA government grants for window and door replacements. The service is offered as part of the broader project package, helping customers optimize available state subsidies.

Pricing tiers

Go-to-market motion3 records

Distribution channels1 record

Marketing channels5 records

Core offering

WEKU designs, manufactures, and installs custom-made windows, doors, and gates in its own Wertheim-Bettingen production facility in Germany. The portfolio spans plastic and aluminum windows, front doors, lift-and-slide doors, security doors, and gates, complemented by sun protection systems, insect protection solutions, security hardware, stairlifts, and Smart Home integration. End-to-end service includes free consultation, on-site measurement, custom manufacturing, and installation by WEKU's own trained mounting teams, plus a dedicated government subsidy advisory service (WEKU Förderservice) for energy-efficiency projects.

Product overview

WEKU is a family-owned German company (founded 1996) offering a comprehensive portfolio of custom-manufactured windows, doors, and gates under the tagline "Hochwertige Fenster, Türen & Tore nach Maß" (High-quality windows, doors & gates made to measure). The core offering includes plastic and aluminum windows, front doors (Kunststoffhaustüren, Aluminiumhaustüren), sliding doors (Hebeschiebetüren), security doors (Sicherheitstüren), and garage doors (Tore), all manufactured in-house in Wertheim. The portfolio spans three window series (Naturis, Purano, Sensano), security hardware (WEKU Safe 01, Safe 02), sun protection systems (ROKA-TOP, Miniaufsatzkasten, Vorbaurollladen, Raffstores, Markisen, Rollläden), insect protection solutions (Spannrahmen, Drehrahmen, Rollos, Tür-Drehrahmen, Pendeltür, Schiebetür), security products (Sicherheitsglas, Lärmschutzglas, Alarmanlagen), accessibility solutions (Elan, Elite, EuroLift stairlifts), and Smart Home integration. Complementary services include the WEKU Förderservice (subsidy advisory) and WEKU Energieberater (energy consulting). The company operates five regional branches (Wertheim, Munich, Nuremberg, Augsburg, Koblenz, Stuttgart, Oberhausen) and positions itself as a full-service provider from consultation through production to professional installation.

Differentiator

Problem solved

Functional benefit

Brands

• Naturis: Window series focusing on sustainability and natural materials integration.
• Purano
• Sensano
• WEKU Safe 01
• WEKU Safe 02
• WEKU Grundsicherheit
• ELAN Treppenlift
• ELITE Treppenlift
• EuroLift Treppenlift
• ROKA-TOP
• Miniaufsatzkasten
• Vorbaurollladen

Products and services

• WEKU Naturis Window Series
• WEKU Purano Window Series Classic and modern color window series with smooth or textured surface finish, combining minimalist design with high energy efficiency. Custom-manufactured plastic windows for residential properties.
• WEKU Sensano Window Series Window series focused on barrier-free design and accessibility features, designed for residential customers needing reduced thresholds and easy operation. Custom-manufactured in Germany.
• Kunststofffenster (Plastic Windows) Custom-made plastic (PVC) windows manufactured in Germany with triple glazing, featuring strong thermal insulation and sustainable materials. Made-to-measure for residential renovation and new construction projects.
• Kunststoffhaustüren (Plastic Front Doors) Plastic front doors offering maximum flexibility in individual design with first-class quality and easy-care surfaces. Custom-manufactured for residential homeowners.
• Aluminiumhaustüren (Aluminum Front Doors) Aluminum front doors combining elegant design, first-class stability, and excellent weather resistance with broad design and color selection. Custom-manufactured for residential properties.
• Hebeschiebetüren (Lift-and-Slide Doors) Lift-and-slide doors creating light-flooded rooms and elegantly connecting interior with exterior, featuring high-quality materials and smooth operation. Custom-manufactured for residential properties.
• Sicherheitstüren (Security Doors) Burglar-resistant apartment entrance doors offering optimal protection with extensive model variety adapting to living ambiance. Manufactured for residential properties.
• WEKU Tore (Gates) Gates combining modern design, durable technology and reliable protection, individually configured for homes with safe operation. Available as manual or electric gates for garages and properties.
• WEKU Safe 01 Security System Enhanced break-in protection system with four powerful locking points, ideal for ground-floor windows and easily accessible areas. Can be upgraded with P2A safety glass, fixed pane bonding, lockable handles, and special mounting fixation points.
• WEKU Safe 02 Security System Maximum security system with circumferential locking points providing all-round protection against burglary attempts. Upgradeable with lockable handles, P4A safety glass, fixed pane bonding, and special mounting fixation points.
• WEKU Sicherheitsglas (Security Glass) Security glass providing protection against impacts, vibrations, and burglary attempts, also offering injury protection and thermal insulation for residential windows and doors.
• WEKU Lärmschutzglas (Soundproofing Glass) Soundproofing glass reducing disturbing noises from traffic, railways, or construction sites while providing a pleasant living climate for residential properties.
• WEKU Alarmanlagen (Alarm Systems) Individual alarm solutions protecting homes from burglary and dangers, adapting perfectly to houses or apartments. Sold as integrated residential security offering.
• ROKA-TOP Roller Shutter System Innovative surface-mounted box system seamlessly integrated into windows, providing optimal heat protection. Features sealed construction, integrated insulation, invisible integration (can be plastered on the room side), optional integrated insect screen, and stable PVC injection-moulded side parts.
• Miniaufsatzkasten (Compact Roller Shutter Box) Space-saving solution for modern sun protection, directly attached to plastic windows and delivered together, featuring fully insulated box. Suitable for new construction applications.
• Vorbaurollladen (Surface-Mounted Roller Shutter) Flexible external-mounted roller shutter solution ideal for renovations and retrofitting, available in various designs including round, square, or angled boxes.
• WEKU Raffstores (External Louvers) Adjustable louver sun protection system enabling precise daylight control and privacy, available in widths 680-4000mm and heights up to 4000mm for residential properties.
• WEKU Markisen (Awnings) Awning solutions for terraces and balconies providing stylish shade and protection from sun and light rain. Sold as a standalone sun protection product for residential customers.
• WEKU Rollläden (Roller Shutters) Roller shutters providing thermal regulation, sound insulation, privacy, security, and energy efficiency for new construction and retrofit applications on residential properties.
• Insect Protection Systems (Spannrahmen, Drehrahmen, Rollos, Drehrahmen-Türen, Pendeltüren, Schiebetüren) Custom-made insect screens for windows, doors, sliding doors, and basement shafts. Available as tension frames (Spannrahmen), pivot frames (Drehrahmen), roller shades (Insektenschutz-Rollo), swing doors (Pendeltür, Tür-Drehrahmen), and sliding doors (Schiebetür). Options include pollen and electrosmog protection fabrics. Sold as individual product variants.
• WEKU Elan Stairlift (Straight, Indoor) Straight staircase lift for indoor use combining elegant simplicity with reliable functionality, space-saving and easy to operate. Designed for residential accessibility.
• WEKU Elite Stairlift (Straight, Outdoor) Straight staircase lift for outdoor use with weather-resistant materials and reliable technology, designed for outdoor accessibility at residential properties.
• WEKU EuroLift Stairlift (Curved, Indoor/Outdoor) Curved stairlift for indoor and outdoor use with adaptable construction mastering tight curves and complex stair layouts. Features weather-resistant materials, load capacity up to 125 kg (optional 160 kg), lifting speed 0.12 m/s, dual 12V battery motors, gear drive with running monitoring, twin-tube rail system, and 0.35 KWh power consumption.
• WEKU Smart Home System Smart control of windows, doors, sun protection, and security systems via app, wall-mounted or handheld transmitter. Features automatic opening, energy-saving closing, smart alarm monitoring, automated shading based on sun/heat detection, and barrier-reduced operation with motorized elements.
• WEKU Förderservice (Subsidy Advisory Service) Professional support service for applying for government subsidies (KfW, BAFA) for window or front door replacement, including identification of suitable programs and complete application processing. Sold as a standalone advisory service to residential customers.
• WEKU Energieberater (Energy Consulting) Expert energy consulting service for sustainable building and renovation, working with certified energy consultants for professional support to residential customers planning energy upgrades.

Quantifiable outcome

• Up to 20% of total project cost recoverable through government subsidies (KfW, BAFA)
• +3 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Three partnerships are on record, tiered core.

• VEKA UmwelttechnikcoreTechnology or IntegrationWEKU partners with VEKA Umwelttechnik for professional recycling of plastic windows and production residues. VEKA operates a closed-loop material cycle system where used PVC windows and manufacturing waste are collected, processed, and reintroduced as high-quality raw material for new window profiles. This partnership supports WEKU's sustainability credentials and circular economy positioning.
• KfW (Kreditanstalt für Wiederaufbau)coreOthersWEKU helps customers access KfW government funding programs for energy-efficient building renovation. The company provides advisory services covering application preparation, subsidy eligibility assessment, and compliance with KfW program requirements for window and door replacements.
• BAFA (Bundesamt für Ausfuhrkontrolle)coreOthersWEKU supports customers in accessing BAFA subsidies under the Federal Funding for Efficient Buildings (BEG) program. Advisory services include identifying eligible measures, preparing applications, and ensuring compliance with BAFA technical requirements for window and door energy efficiency improvements.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Finstral: Finstral is a South Tyrolean family-owned window and door manufacturer with in-house production and direct sales to homeowners. Comparable to WEKU on custom fabrication, vertical integration, and DACH regional focus.
• Solarlux: Solarlux is a German manufacturer of bespoke sliding and lift-slide doors, glass extensions, and balconies. Directly comparable to WEKU's Hebeschiebetüren and bespoke door offering in the premium residential segment.
• Heroal: Heroal is a German family-owned manufacturer of aluminum windows, doors, roller shutters, and sun protection. Comparable to WEKU in product breadth across aluminum systems and direct relationship with installers and homeowners.
• Roma Rollladen-Systeme: Roma is a German manufacturer of roller shutters and sun protection systems. Comparable to WEKU's ROKA-TOP, Vorbaurollladen, and Raffstores product lines in the residential shading and security market.
• Profine (Kömmerling): Profine produces Kömmerling and other PVC window profile systems marketed to manufacturers and dealers. Comparable to WEKU at the window-system level, with overlapping presence in the German market.
• Internorm: Internorm is a leading European family-owned manufacturer of custom windows and front doors, primarily in the DACH region. Directly comparable to WEKU in custom-made PVC and aluminum windows, end-to-end service, and homeowner-focused sales model.

Broad incumbents

• Schüco: Schüco is a large German manufacturer of windows, doors, and façades with a wide product portfolio spanning residential and commercial. Comparable category to WEKU but operates at significantly larger scale and broader market scope.
• Warema: Warema is a large German manufacturer of sun shading systems (Raffstores, Markisen, Rollläden) with both residential and commercial focus. Comparable to WEKU's sun protection portfolio but at substantially larger scale.
• Velux: Velux is the global leader in roof windows and skylights, with strong German residential presence. Comparable to WEKU in the residential window segment and adjacent to WEKU's tilt-and-turn windows, though focused on roof applications.
• REHAU Windows: REHAU supplies PVC window profile systems and finished window solutions to fabricators across Europe. Comparable as a window manufacturer and profile supplier, though REHAU is far larger and operates through dealer networks rather than the direct-to-homeowner model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@WEKUFensteruTueren
• Facebookfacebook.com/WEKU.Fenster
• Instagraminstagram.com/weku_fensterundtueren
• LinkedInlinkedin.com/company/weku-gmbh-co-kg

Revenue estimate

Valuation estimate

Number of profiles

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 WEKU