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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet Metal WorkWittenbachStefan Müggler GmbH
Stefan Müggler GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Stefan Müggler GmbH is roofing work, including sheet metal work, chimney cladding, on-site sheeting, general work, special work, roofing work (pitched roof, flat roof, roof service, lightning protection), bee hotel, bee roof, bee box and crane work.

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Products & services

Industry:Sheet Metal Work
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4.1/5

Stefan Müggler GmbH

Sheet metal work
Chimney flashings, verge board cladding, general and specialised sheet metal work for roofs and building envelopes; repairs and installations involving sheet metal and copper.
Roofing work
Pitched and flat roof work, waterproofing and thermal insulation, dormers, roof dormers and roof windows for more light and protection from weather influences.
Roof service
Maintenance of pitched and flat roofs, repairs, cleaning of gutters, inspection and replacement of sheet metal connections, snow guards and roof drains.
Lightning protection
Lightning protection systems for buildings as a preventive measure against lightning damage; advice and installation for effective and cost-efficient building protection.
Bee roof
Bee roofs with bee houses, plantings, stones and timber to create habitat for wild bees and other native animal and plant species.
Crane work
Crane work with a lifting platform for work without scaffolding, for example pipes, pipe bends, Rinnendilas and pigeon screens; large working area and quick readiness for operation.
Trust & reputation

ranQ Trust Score of Stefan Müggler GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Stefan Müggler GmbH scores 70.0 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.67.124%
  • 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.52.910%
  • 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%
Stefan Müggler GmbH scores 83.0 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.55.07%
Stefan Müggler GmbH 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%
Stefan Müggler GmbH scores 11.1 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 35.11.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Stefan Müggler GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 7 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Erlenholz
9300 Wittenbach
Opening hours
Mon
07:00 - 17:30
Tue
07:00 - 17:30
Wed
07:00 - 17:30
Thu
07:00 - 17:30
Fri
07:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-114.553.286
Founded
2008 · 18 years
Last commercial register change
November 23, 2012
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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