What Vogel Fensterbauer AG does

Vogel Fensterbauer AG is a Swiss specialist in historic window construction, restoration, and replication, founded in 1909 and headquartered in Goldach. Operating as a subsidiary of Künzli Davos AG with 14 employees, the company self-positions as the Swiss market leader in its niche, serving public, institutional, and private heritage-property clients across Switzerland. Its product portfolio centers on IV-Fenster (vacuum-insulating window) technology for energy-efficient retrofits, hand-crafted replicas for listed buildings, and careful restoration of original historic fenestration, supported by what the company describes as Switzerland's only window museum and a portfolio of reference projects spanning Swiss Federal Railways (SBB), cantonal governments, churches, and hotels.

The company maintains three commercial touchpoints across Switzerland: the Goldach headquarters, a Lausanne presence via partner COPO SA serving the francophone market, and a Zürich footprint via the Künzli Group. It is ISO 9001 (quality) and ISO 14001 (environmental) certified and holds memberships in relevant Swiss industry bodies, functioning as procurement pre-qualification for heritage tenders. Its commercial model is project-based with quote-driven pricing, supplemented by recurring service and maintenance revenue streams tied to installed heritage windows.

Revenue is generated through a mix of B2G (cantonal and federal restoration contracts), B2B (hospitality, transport, institutional), and B2C (private heritage homeowners) channels, with individual project sizes ranging from single-window private commissions to multi-hundred-window cantonal deployments. The trilingual German/English/French website and the museum function as both brand assets and lead-generation channels in a market where certified, specialized contractors are scarce. No external funding, equity event, or AI/technology platform initiative is documented; growth is operationally driven by heritage-construction demand and the company's accumulated craftsmanship credentials.

Name

Vogel Fensterbauer AG

Legal name

Vogel Fensterbauer AG

Website

https://vogel-fensterbauer.ch

Company type

Private

Founded year

1909

Operating status

Operating

Headcount range

11–50 employees

Short description

Vogel Fensterbauer AG is a 115-year-old Swiss specialist in historic window construction, restoration, and replication, serving heritage-property clients across Switzerland from its Goldach headquarters via a 14-person team and partner offices in Lausanne and Zürich.

Ownership category

akta.pro rank

Product category

Historic Window Construction and Restoration

NAICS

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

SIC

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

akta.pro primary industry

Custom Window & Door Fabrication & Replacement (HSAPAJAI)

akta.pro secondary industries

Window & Door Frame/Sash Replacement (HSAPAJAF), Windows (IMADAIAC), Window/Door Frame Repair & Rot Remediation (Wood/Composite) (HSAGAEAI)

Keywords

• Historic window construction
• Heritage window restoration
• Insulating window fabrication
• Monument conservation windows
• Custom wood window manufacturing

Headquarters

HQ city

Goldach

HQ country

Switzerland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Historic Window Construction and Restoration: Core revenue stream from restoring and reconstructing windows for historically valuable buildings. Services include authentic restoration of existing windows, one-to-one style-faithful replicas for listed buildings, and the supply and installation of new insulating windows. Projects range from individual residences to large-scale institutional buildings such as monasteries, railways, and government properties.
2. Window Service and Maintenance: Recurring service revenue from window maintenance programs including a two-year service cycle with checks on glazing, seals, surfaces, and hardware. Additional services include glass scratch repair, resealing, hardware repairs, cat-flap installation, security glass fitting, and leaded/art glass restoration. Service is quote-based and performed on-site.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Vogel Fensterbauer AG manufactures and installs historic and insulating windows (IV-Fenster) for historically valuable and listed buildings in Switzerland, combining traditional craftsmanship with modern machine technology. Its offering covers authentic restoration of existing windows, faithful one-to-one replicas, and style-consistent new production, including proprietary vacuum window technology for narrow historic profiles and secondary window doublings (Aufdoppelungen) that upgrade thermal performance without altering historic appearance. The company also operates a recurring window service and maintenance program with a two-year service cycle.

Product overview

Vogel Fensterbauer AG is a historic window construction and restoration company offering a comprehensive portfolio centered on authentic historic window solutions. The core offerings include IV-Fenster (insulating windows) and vacuum window technology (five times thinner than standard multiple glazing), complemented by careful restoration services, one-to-one historic replicas, aesthetic style windows, and exclusive custom solutions for round/curved forms and leaded glazing. The company also provides a dedicated window service division offering maintenance, repair, and restoration work, and operates a unique window museum documenting over 700 years of window history. Wood-metal combination windows represent another product line. All offerings are delivered as physical products and craftsmanship services rather than software.

Differentiator

Problem solved

Functional benefit

Products and services

• IV-Fenster (Insulating Windows) Insulating windows (IV-Fenster) are the company's primary product for historic and listed buildings, providing thermal insulation while maintaining authentic historical appearance through careful restoration or faithful reproduction. Fitted with modern double or triple glazing, cremone shutters, espagnolettes, and leaded glass options, meeting contemporary thermal insulation, soundproofing, and burglary protection standards.
• Vacuum Window Technology Vacuum window technology produces windows five times thinner and significantly lighter than modern multiple glazing, enabling installation in historical profiles from past centuries without compromising thermal insulation or soundproofing.
• Aesthetic Style Windows Functional, simple, and timelessly elegant aesthetic style windows with high-quality workmanship and filigree design, allowing maximum light incidence and design freedom without compromising security, energy efficiency, or weather resistance. Suitable for new buildings and renovations.
• Holz-Metall Fenster (Wood-Metal Windows) Wood-metal combination windows combining the aesthetic appeal of wood with metal reinforcement for enhanced durability and structural stability.
• Historic Window Restoration Services Careful restoration preserves windows worthy of protection from all eras, restoring them to their original condition and repairing defective components in keeping with their style through authentic restoration and careful modification using traditional techniques and authentic materials.
• One-to-One Window Replicas Where original building fabric cannot be preserved, the company creates historically accurate window replicas according to monument preservation specifications, matching originals down to the last detail while meeting modern technical requirements.
• IV-Aufdoppelungen (Secondary Window Installation) Secondary window installation technique that upgrades existing historic windows with modern insulating glass without altering the original appearance, preserving the historic character while improving thermal and acoustic performance.
• Window Service and Maintenance Comprehensive window service including inspection, adjustment, repair, maintenance packages with two-year service cycles, glass scratch repairs, glazing replacement, seal replacement, surface repairs, handle repairs, cat flap installation, safety glass installation, and lead/art glass restoration. Service is quote-based and performed on-site.
• Exclusive Custom Window Solutions Custom solutions for round and curved shapes, art and leaded glazing, and special closing mechanisms, including Appenzell windows and American vertical sliders.
• Bleiverglasung (Leaded Glass) Lead glass restoration and reproduction services, preserving original leaded windows and creating new ones in historical styles.
• Window Museum (Fenstermuseum) Switzerland's unique window museum preserving exhibits from over 700 years of window history, providing information and guided tours for architects, builders, and monument conservators.

Quantifiable outcome

• Over 300 windows recreated for a single project (Schulliegenschaft Mariaberg, Rorschach, 2018–2020)
• +5 more outcomes

Named customers22 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Künzli Davos AGcoreOthers · 1 January 2001Künzli Davos AG acquired Vogel Fensterbauer AG in 2001 and serves as the parent company of the Künzli Group. The acquisition brought Vogel under the umbrella of Switzerland's leading historic wood construction group, with Thomas Künzli serving as VR/Inhaber (Board of Directors/Owner) of Vogel Fensterbauer AG.
• COPO SAminorChannel Partner/ Reseller/ DistributorCOPO SA operates as Vogel Fensterbauer AG's partner office in the Lausanne area at En Budron H14, CH-1052 Le Mont-sur-Lausanne, serving clients in French-speaking Switzerland. Contact: [email protected], Tel +41 21 651 08 00.
• Schweizer Heimatschutz (Swiss Heritage Society)minorStrategic or Co-development PartnerVogel Fensterbauer AG supports the Swiss Heritage Society and cultural-historical associations, engaging with the heritage protection community and demonstrating commitment to cultural preservation.
• Interessensgemeinschaft Altbau:weiseminorStrategic or Co-development PartnerVogel Fensterbauer AG is a member of the Interessensgemeinschaft Altbau:weise (SGA), a Swiss association focused on sustainable building renovation practices, aligning the company with best practices in historic building renovation.
• FFF (Fachvereinigung für Flachdach und Fassade)minorStrategic or Co-development PartnerMembership at FFF provides Vogel Fensterbauer AG with industry connections and ensures access to the latest technology and standards in the facade and window industry. Membership card valid through 2026.

Scale indicators3 records

Recent moves8 records

Expansion highlights4 records

Broad incumbents

• EgoKiefer AG: Switzerland's largest window manufacturer offering a broad portfolio across replacement and new construction. Comparable as a Swiss window sector incumbent, though it does not specialize in historic/heritage restoration where Vogel competes.
• Gaulhofer Industrie Holding: Austrian window and door manufacturer with heritage and renovation product lines. Comparable as a Central European wood window specialist, though broader in product scope than Vogel's historic-only focus.
• Unilux AG: Swiss/German premium wood-aluminum window manufacturer serving residential, historic, and architectural projects. Comparable as a premium Swiss window maker, though broader than Vogel's narrow historic-restoration niche.
• 4B AG: Swiss wood window and door manufacturer with heritage products and timber engineering capabilities. Overlaps with Vogel in wood window fabrication for the Swiss market but does not focus exclusively on historic restoration.

Emerging players

• Stengel GmbH: German specialist in historic window restoration, listed-building replication, and monument conservation woodwork. Comparable niche focus to Vogel's restoration and replica services in the German-speaking heritage market.
• Schreinerei Brandl (and similar German Denkmalschutz ateliers): Bavarian craft joinery specializing in historic window restoration for listed buildings. Comparable to Vogel for monument-compliant window restoration services, though smaller and regionally focused.

Direct peers

• Josko Fenster und Türen: Austrian wood and wood-aluminum window and door manufacturer with a heritage/traditional product line. Comparable to Vogel for premium wood window fabrication and historical style windows in the DACH region.
• Wartmann Fenstertechnik AG: Swiss window specialist providing custom wood and wood-aluminum windows including renovation and historic-sensitive projects. Direct overlap with Vogel on Swiss heritage and renovation window projects.
• Kolbe Fenster und Türen: German manufacturer specializing in premium wood, wood-aluminum, and historic-style windows including replica and conservation-grade products. Closely comparable to Vogel in heritage window craftsmanship and architectural replication capabilities.
• Hartmann Fensterbau: Swiss family-run window manufacturer offering wood and wood-metal windows for residential and heritage projects. Comparable to Vogel for high-quality custom wood windows in the Swiss market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/vogel-fensterbauer

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Vogel Fensterbauer AG