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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureWindow constructionBüren NwFenster Bünter AG
Fenster Bünter AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Fenster Bünter AG develops, manufactures and installs windows and sliding doors. Its products include timber and timber-aluminium windows, fire-resistant windows, blinds and shutters; the company also provides consulting, servicing and installation.

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Service area

Offering

Products & services

Industry:Window construction
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4.2/5

Fenster Bünter AG

✓ Offered5
Windows
Wood windows, wood-metal windows and fire-protection windows for new-builds, renovations and listed historic buildings; available in custom dimensions, various profiles and colours.
Sliding doors
Wood and wood-metal lift-and-slide doors for wide openings and threshold-free installations; with robust hardware, sealing systems and a range of interior and exterior colour finishes.
Service and installation
Window installation, replacement and fitting with our own fitters, modern installation techniques, transport by truck and crane, and suction and lifting equipment.
Facade blinds
Facade blinds made of wood or aluminium, including accessories, fittings, special lacquers and installation; partly in cooperation with sister company GAWO Gasser AG.
Production of windows and sliding doors
Production of windows and sliding doors with our own cutting service, metalworking, CNC processing, painting and in-house quality checks.
Trust & reputation

ranQ Trust Score of Fenster Bünter AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of November 2026

Fenster Bünter AG scores 79.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.79.324%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.82.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
Fenster Bünter AG scores 77.1 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.64.612%
  • 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 Bünter AG scores 88.3 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).88.322%
Fenster Bünter AG scores 42.2 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 35.74.34%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Fenster Bünter AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 25 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 25 reviews across all connected sources

Sources
GGoogle4.725
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

March 10, 2023Media
Wolhuser Gawo Gasser übernimmt Nidwaldner Fenster Bünter
luzernerzeitung.ch

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Comparisons

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Location

Brisenstrasse 2
6382 Büren Nw
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-384.037.447
Founded
2021 · 5 years
Last commercial register change
September 9, 2026
Employees
21 to 50

Active in 10 of 26 cantons

  • Central Switzerland
  • BSBasel-City
  • BEBern
  • TITicino
  • ZHZurich
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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