Zwick

What Zwick does

Zwick Fenster-Technik GmbH is a family-owned German window, door, and conservatory manufacturer and installer founded in 1958 in Augsburg, Bavaria, and now headquartered in Affing-Mühlhausen. The company operates under three related legal entities: Zwick Fenster-Technik GmbH (windows and doors), Zwick Wintergarten GmbH (conservatories), and Zwick Rolladen GmbH (roller shutters, sun protection, and awnings, spun off as a separate location in Königsbrunn). Its core offerings include PVC, PVC/aluminum, and wood/aluminum windows; aluminum entrance doors with bundled accessory pricing; conservatories featuring the proprietary Klimadach (climate roof) system that eliminates conventional shading requirements; stainless steel and glass door canopies starting at €3,500; and time-and-materials repair services billed at €77.35/hour.

The company's technology stack centers on proprietary installation and product systems rather than software: the co-developed Schnelltausch-Fenster (quick-change window) method enables window replacement without masonry work, and the Ideal HouseControl wireless monitoring platform integrates window, door, roller shutter, and gate security with SmartHome interfaces. Digital sales channels include two online door configurators (funnel.zwick-fenster.de and konfigurator-haustuere.de) supporting self-service design and price quotation, complemented by a by-appointment Musterraum showroom and field sales consultation.

Zwick's commercial model is direct-to-consumer/B2B craft, serving homeowners and small commercial customers in the Augsburg/Bavaria region. Revenue is generated primarily through one-time installation contracts with all-inclusive pricing, plus recurring repair and maintenance services. The company employs 11-50 staff and maintains multi-generational customer relationships, with documented family customers of 30+ years, and emphasizes regional brand heritage as a key trust signal.

Name

Zwick

Legal name

Zwick Fenster-Technik GmbH

Website

https://zwick-fenster.de

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

11–50 employees

Short description

Zwick Fenster-Technik GmbH is a family-owned Augsburg-based manufacturer and installer of PVC and aluminum windows, entrance doors, conservatories, and door canopies, serving residential homeowners across the Bavaria region through direct sales, showroom consultation, and online configurators.

Ownership category

akta.pro rank

Product category

Windows and Doors Manufacturing

NAICS

Metal Window and Door Manufacturing (332321), Wood Window and Door Manufacturing (321911), Glass and Glazing Contractors (238150)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442), Glass Products, Made Of Purchased Glass (3231)

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

akta.pro secondary industries

Architectural & Building Glazing Systems (Curtain Wall/Storefront/Canopies) (IMADAHAB), Exterior Doors (IMADAIAA), Storm Door & Storm Window Repair/Installation (HSAGAEAJ)

Keywords

• Window manufacturing
• Entrance doors
• Conservatory construction
• Aluminum windows
• PVC windows

Headquarters

HQ city

Augsburg

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Windows (Fenster): Sale and installation of PVC, PVC/aluminum and wood/aluminum windows for new construction and renovation. The company offers full window replacement services including removal of old windows.
2. Entrance Doors (Haustüren): Sale and installation of premium aluminum entrance doors with all special accessories included in the door price. No hidden additional costs. Offered through online configurators and in-person consultation.
3. Winter Gardens (Wintergärten): Design, planning, permitting (Baugenehmigungsverfahren), and construction of custom winter gardens as four-season living spaces. Includes renovation of existing winter gardens.
4. Door Canopies (Haustürvordächer): Design, manufacture and installation of stainless steel and glass door canopy systems. Complete packages starting from €3,500 including installation and VAT.
5. Repair and Maintenance Services: Repair services for plastic and aluminum windows and doors billed on time-and-materials basis at €77.35/hour (€65.00 net) including travel time. Maintenance services offered to commercial customers at special rates during winter months.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

Zwick manufactures, sells, and installs plastic (PVC), PVC/aluminum, and wood/aluminum windows, premium aluminum entrance doors, custom winter gardens (conservatories) using its proprietary Klimadach (climate roof) system, stainless steel and glass door canopies, and secondary/basement doors. The company delivers full-service projects—from on-site consultation and measurement through manufacturing, installation, and building permit handling—targeting homeowners and commercial property managers in the Augsburg/Bavaria region of Germany. It also provides window/door repair and maintenance services billed on a time-and-materials basis.

Product overview

Zwick Fenster-Technik GmbH operates as a specialized window, door, and conservatory manufacturing company with over 60 years of history. The company operates two divisions under one roof: Zwick Fenster-Technik GmbH (windows and doors) and Zwick Wintergarten GmbH (conservatories). The core product portfolio includes Fenster (Kunststoff, Kunststoff/Aluminium, and Holz/Aluminium windows), Haustüren (aluminium front doors available in Exklusiv and Aktion categories), Wintergärten with innovative Klimadach technology, Haustürvordächer (door canopies in multiple models including Comet, Juwel, Galaxy, Calypso, Venus, and Phönix), Nebeneingangs- und Kellertüren (secondary and basement doors), and associated services including repair, maintenance, and customer service. The company also offers an online door configurator tool for customer customization. An additional product recommendation is the Ideal HouseControl wireless monitoring and SmartHome system.

Differentiator

Problem solved

Functional benefit

Products and services

• Fenster (Windows) Windows made from Kunststoff (PVC), Kunststoff/Aluminium, and Holz/Aluminium materials for residential and commercial construction and renovation. Includes energy-efficient and mold-resistant thermal insulation variants and full window replacement services (removal of old windows) using the Schnelltausch-Fenster quick-change technique that avoids masonry work.
• Haustüren (Front Doors) Premium aluminum entrance doors sold as complete packages with all special accessories included and no hidden additional costs. Offered in Aktionstüren (promotional) and Exklusivtüren (starting from €5,000) tiers, emphasizing durability, weather resistance, low maintenance, thermal insulation, and high security (multi-point locking). Available via online configurator and in-person showroom consultation.
• Wintergärten (Conservatories / Sunrooms) Custom winter gardens/conservatories available in rectangular, angled, or bay-window configurations, featuring Zwick's proprietary Klimadach (climate roof) system that prevents heat buildup, eliminates the need for shading and frequent cleaning, and enables rooftop terrace functionality. Zwick provides end-to-end service including design, planning, Baugenehmigungsverfahren (building permit handling), and construction, including renovation of existing winter gardens.
• Haustürvordächer (Door Canopies) Design, manufacture and installation of stainless steel and glass door canopy systems with laminated safety glass from German production. Models include Comet, Juwel, Galaxy, Calypso, Phönix Exclusiv VSG, and Venus. Complete all-inclusive packages start from €3,500 including installation and VAT, and individual design options such as integrated lighting and rain gutters are available.
• Nebeneingangs- und Kellertüren (Secondary and Basement Doors) Secondary entrance doors and basement doors sold as part of the complete Zwick door product portfolio for residential properties.
• Fensterreparaturen (Window Repair Services) Repair services for Kunststoff (PVC) and Aluminium windows and doors, including fixing drafts, leaks, stiff handles, and damaged components. Billed transparently on a time-and-materials basis at €77.35/hour gross (€65.00 net) including travel time, with the first started hour charged in full and additional time billed in 15-minute increments. Material costs are charged at actual cost.
• Kundendienst (Customer Service and Maintenance) Customer service for existing installations including maintenance work on facades, fall protection for windows, and special requests. Includes special winter maintenance services offered at discounted rates for commercial property owners with rental portfolios.

Quantifiable outcome

• Transparent repair billing at €77.35/hour with no hidden surcharges beyond stated rates
• +2 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• Finstral AG: South Tyrolean family-owned window and door manufacturer with direct sales model. Highly comparable to Zwick: vertically integrated, premium positioning, in-house production, regional European market focus, and emphasis on craftsmanship and customization.
• UNILUX GmbH: German premium window manufacturer producing wood, wood-aluminum, and PVC-aluminum windows for renovation and new construction. Comparable to Zwick in premium residential window focus, German Mittelstand roots, and emphasis on energy efficiency.
• Solarlux GmbH: German manufacturer specializing in conservatories, glass extensions, and folding/sliding glass doors. Directly comparable to Zwick's Zwick Wintergarten GmbH subsidiary for winter garden/glazing products and similar premium positioning.
• Internorm International GmbH: Leading European family-owned window manufacturer with own production and direct distribution. Comparable to Zwick in product breadth (PVC, wood-aluminum, aluminum windows and doors), direct-to-consumer model, and emphasis on energy efficiency and quality.
• Heroal GmbH & Co. KG: German family-owned manufacturer of aluminum window, door, and conservatory systems. Closely comparable to Zwick in aluminum system product focus, family-owned Mittelstand structure, and German regional market emphasis.

Broad incumbents

• Rehau Group: Global polymer-based solutions company producing PVC window and door systems comparable to Zwick's PVC window offerings. Operates at much larger scale as a B2B profile supplier across multiple industries beyond windows.
• Kömmerling (profine GmbH): German PVC profile brand under profine Group producing window and door profile systems. Comparable product category to Zwick's PVC windows but operates as a large-scale B2B systems supplier rather than regional craft installer.
• Aluplast GmbH: Major German PVC window and door profile systems manufacturer headquartered in Karlsruhe. Comparable to Zwick's PVC window focus but operates as a B2B systems supplier serving thousands of fabricators across Europe rather than as a regional installer.
• VEKA AG: Major German manufacturer of PVC window and door profile systems. Comparable to Zwick in PVC window/door focus but operates as a B2B systems supplier to fabricators rather than as a regional direct-to-consumer installer like Zwick.
• Schüco International KG: One of Europe's largest aluminum and PVC window/door system manufacturers. Comparable to Zwick in product categories (windows, doors, conservatories) but operates at vastly greater scale with global distribution and system-supply business model rather than direct regional craft installation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries2 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 Zwick