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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionIttigenFenster Müller AG
Fenster Müller AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the manufacture and assembly of windows and doors in various materials (wood, wood-metal, plastic) as well as the execution of interior finishing work and façade construction. Additionally, the company offers repair and maintenance services for its products.

AI-generated
Offering

Products & services

Industry:Interior Construction
✓ Offered9
Window construction
Windows in wood, wood-metal and plastic; production and installation for new-build and renovations, in various colours, shapes and dimensions.
Door construction
Fabrication and installation of apartment entrance doors and house doors, individually planned according to requirements for security, sound insulation, fire protection and aesthetics.
Lift-and-slide doors
Lift-and-slide doors for large elements, with high static requirements and winter gardens; also threshold-glazed variants with a high glass proportion and good thermal insulation values.
Roof windows
Custom roof window systems for different roof structures; flush, low-maintenance, weather-resistant and with glass thicknesses up to 50 mm.
Glazing
Shop window glazing, windbreak glazing on balconies, balustrade glass, interior glass and pet door inserts for various applications.
Insect protection
Insect protection fixed frames and roller blinds for existing window systems, in various versions and colours.
Interior shading
Interior blinds in various designs, shapes and colours; delivery and installation of interior products.
Repair service
Repairs for broken glass, break-ins and defective components; aligning, lubricating and replacing seals on windows and doors.
Service and consultation
Personal information, telephone support and contact form; customer-focused and expert advice and support up to completion of the order.
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4.3/5

Fenster Müller AG

Trust & reputation

ranQ Trust Score of Fenster Müller AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Fenster Müller AG scores 71.2 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.76.824%
  • 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.58.610%
  • 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.70.08%
Fenster Müller AG scores 89.3 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.70.07%
Fenster Müller 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 Müller AG scores 74.3 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: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Fenster Müller AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 9 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
4.8
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.89
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Niesenweg 16
3063 Ittigen
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-102.479.571
Founded
1976 · 50 years
Last commercial register change
February 21, 2022
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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