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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet Metal WorkAumontFerblanterie Robin Muller Sàrl
Ferblanterie Robin Muller Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Ferblanterie Robin Muller Sàrl is a metal-roofing and sheet-metal workshop that produces custom-fabricated components in copper, zinc, stainless steel and aluminium. Services include chimney flashings, flashings for dormers and vents, flat-roof waterproofing (EPDM) and the design and installation of photovoltaic systems carried out with partner companies.

AI-generated
Offering

Products & services

Industry:Sheet Metal Work
✓ Offered4
Custom sheet metal work
Sheet metal work in copper, zinc, stainless steel and aluminium; fittings around chimneys, ventilation outlets and dormers, gutters, drip edges and wind deflectors.
Flat roof waterproofing
Waterproofing for flat roofs with EPDM membranes and prefabricated elements, in collaboration with Contec AG for the production of the parts.
Solar installations
Photovoltaic installations and integrated solar solutions, carried out with Volery Frères SA within Volery Energie SA.
Aluminium window sills
Offer and ordering of aluminium window sills, with the possibility of a direct request via the dedicated page.
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4.1/5

Ferblanterie Robin Muller Sàrl

Trust & reputation

ranQ Trust Score of Ferblanterie Robin Muller Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Ferblanterie Robin Muller Sàrl scores 72.0 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.69.424%
  • 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.55.910%
  • 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.100.08%
Ferblanterie Robin Muller Sàrl scores 80.9 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.95.212%
  • 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.55.07%
Ferblanterie Robin Muller Sàrl scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
Ferblanterie Robin Muller Sàrl scores 11.4 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 35.11.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ferblanterie Robin Muller Sàrl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 8 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 8 reviews across all connected sources

Sources
GGoogle4.58
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route de la Croix 31
1484 Aumont

At a glance

Legal form
Limited Liability Company
UID
CHE-362.052.131
Founded
2013 · 13 years
Last commercial register change
January 21, 2026
Employees
1 to 10
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.
88.0
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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