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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet Metal WorkWaltenschwilWerder AG
Werder AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Werder AG is a building services company providing sanitary installations, heating systems and sheet-metal roofing (Bauspenglerei) services. Its offerings also include lightning protection, chimney systems, heating renovations, ventilation and bathroom/wellness solutions, and the website notes partnerships with manufacturers such as Artweger.

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Offering

Products & services

Industry:Sheet Metal WorkSolar & Photovoltaics
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4.1/5

Werder AG

✓ Offered6
Building sheet-metal work
Building sheet-metal work for new builds and renovations, including roof drainage, metalwork, and connection details to building envelopes.
Lightning protection
Lightning protection systems for buildings, with planning and installation as a complementary building-services service.
Solar systems and alternative energy
Alternative energy and solar systems for buildings, as part of building-services installations.
Heating renovations and comfort ventilation
Heating renovations and comfort ventilation for buildings, for renewing heating systems and for controlled air circulation.
Sanitary installations
Sanitary installations for residential and commercial buildings, including installation and execution in the building-services field.
Wellness
Wellness areas and wellness oases as building-services installations in the sanitary and installation environment.
Trust & reputation

ranQ Trust Score of Werder AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Werder AG scores 68.1 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.67.824%
  • 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.67.110%
  • 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%
Werder AG scores 85.5 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%
Werder 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%
Werder AG scores 10.0 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 35.10.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Werder AG 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 13 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 13 reviews across all connected sources

Sources
GGoogle4.413
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Juchstrasse 13
5622 Waltenschwil

At a glance

Legal form
Corporation
UID
CHE-108.088.335
Founded
1967 · 59 years
Last commercial register change
September 13, 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.
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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