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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionBütschwilFenster-Keller AG
Fenster-Keller AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Fenster Keller AG is the manufacture and installation of wooden and wood-metal windows and doors, including related services such as consulting, production and installation.

AI-generated
Offering

Products & services

Industry:Interior Construction
✓ Offered12
Windows and doors
Windows and doors in traditional made-to-measure production; tilt-and-turn, sliding and swing windows as well as custom solutions made of wood, glass and metal.
Wood-metal windows
Wood-metal windows in various versions, including windura classic and windura light, for individual new-build and refurbishment projects.
Wood windows
Wood windows for new builds, conversions and custom window solutions with a focus on traditional made-to-measure production.
Heritage-protection windows
Windows for listed buildings, in wood or wood-metal versions, suitable for historical conversions and renovations.
Sliding doors
Sliding doors as lift-and-slide, parallel-slide and folding-slide doors for different opening and space solutions.
Entrance doors
Entrance doors as a separate product solution for the entrance area, matched to window and façade systems.
Fire-protection windows
Fire-protection windows for structural requirements with increased fire-resistance performance.
Post-and-beam constructions
Post-and-beam constructions for large-format glazing and façade solutions.
Vertical sliding windows
Vertical sliding windows as a special window solution for flexible opening and space-saving use.
Pivoting casement windows
Pivoting casement windows as a special window construction solution for specific opening and ventilation requirements.
Consulting, production and installation
Consulting for windows and doors, production in Bütschwil as well as installation, replacement and disposal including service support.
Service and maintenance
Service after installation, including ongoing maintenance of the windows over several years to ensure long-term performance.
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4.1/5

Fenster-Keller AG

Trust & reputation

ranQ Trust Score of Fenster-Keller AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 58% · As of October 2026

Without public customer reviews the score stays capped.

Fenster-Keller AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Fenster-Keller AG scores 92.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.82.07%
Fenster-Keller AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Fenster-Keller AG scores 50.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.60.04%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.40.04%
Qualifications+0.00

Fenster-Keller AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Press

Media

March 6, 2026Media
Bütschwiler Fensterfirma baut aus
tagblatt.ch
March 3, 2026Media
Fenster Keller AG investiert in Neubau
leaderdigital.ch
January 31, 2026Media
Das nächste Geisterauto im Toggenburg: Nun steht ein Peugeot auf einem Bütschwiler Firmengelände
tagblatt.ch

Knowledge

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Location

Feldeck 15
9606 Bütschwil

At a glance

Legal form
Corporation
UID
CHE-107.141.004
Founded
1978 · 48 years
Last commercial register change
December 19, 2023
Employees
21 to 50
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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