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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryCrafts & TradesJoineryFlamattMuster Fenster AG
Muster Fenster AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Muster Fenster is the manufacture and installation of windows, sliding doors, entrance doors and blinds, as well as the provision of service and repair work for these products. The company also offers comprehensive services for renovation and new construction projects, including planning, production and installation.

AI-generated
Offering

Products & services

Industry:Joinery
✓ Offered9
Windows
Windows made of wood and wood-metal, including the wood-metal Vision-3000®, wooden windows and EI30 fire-protection windows; produced with heat, burglary and sound-insulation options.
Lift-and-slide doors
Lift-and-slide doors made of wood and wood-metal, also for large-area elements, with barrier-free thresholds, Softclose and space-saving lift-slide operation.
Entrance doors
Entrance doors in wood and wood-metal, glazed or with solid door leaf, with escape and panic functions, biometric access and RC2 burglary protection.
Blinds and window shutters
Wooden blinds and window shutters with fixed or movable slats, ridge trims and various slat and design variants.
Renovations
Renovation projects with made-to-measure windows and doors, finishing work around the product, installation and, on request, overall project management with partner trades.
New construction
Solutions for new-build projects with individual product selection for different architectural styles, matched to window, door and facade requirements.
Service
Window service, repairs, glass damage, cat doors, insect screens, pleated blinds and locking systems, as well as maintenance, servicing and refurbishment of windows.
From the workshop
Production for partners across all of Switzerland, including consultation, site measurements, detailed solutions and access to the partner platform.
Insect protection systems
Insect protection systems for windows, balcony and sliding doors as well as light wells, with tension frames, roller blinds, hinged and pendulum doors or sliding systems.
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4.2/5

Muster Fenster AG

Trust & reputation

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

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Muster Fenster AG scores 72.2 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.71.024%
  • 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.70.510%
  • 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%
Muster Fenster AG scores 88.3 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.97.712%
  • 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.70.07%
Muster Fenster AG scores 83.3 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).83.322%
Muster Fenster AG scores 40.0 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 35.40.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Muster Fenster AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 15 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.515
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Chrummatt 38
3175 Flamatt
Opening hours
Mon
07:00 - 12:00, 13:15 - 17:00
Tue
07:00 - 12:00, 13:15 - 17:00
Wed
07:00 - 12:00, 13:15 - 17:00
Thu
07:00 - 12:00, 13:15 - 17:00
Fri
07:00 - 12:00, 13:15 - 16:15
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-201.725.897
Founded
2012 · 14 years
Last commercial register change
June 8, 2026
Employees
11 to 20
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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