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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet metal workerGretzenbachZimmermann Spenglertechnik GmbH
Zimmermann Spenglertechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Zimmermann Spenglertechnik GmbH carries out architectural sheet-metal work, installs lightning protection systems and builds chimneys. Its services include gutters, downpipes, sheet-metal cladding and custom metalwork, as well as chimneys for heating systems and fireplaces.

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Offering

Products & services

Industry:Sheet metal worker
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4.1/5

Zimmermann Spenglertechnik GmbH

✓ Offered
3
Sheet Metal Roofing
Sheet metal works for new and existing buildings, including rainwater downpipes, gutters, cladding for roof extensions and roof windows, sealing work, metal façades and sheet-metal roof coverings.
Lightning Protection
Earthing and lightning protection systems for buildings and people, with external lightning protection made of copper or aluminium wires, as well as cantonal authorisation.
Chimney Construction
Chimney construction for gas and oil heating systems as well as fireplace stoves, including consultation, installation and renovation during renovations and conversions.
Trust & reputation

ranQ Trust Score of Zimmermann Spenglertechnik GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Zimmermann Spenglertechnik GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Zimmermann Spenglertechnik GmbH scores 83.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
Zimmermann Spenglertechnik GmbH 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%
Zimmermann Spenglertechnik GmbH 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

Zimmermann Spenglertechnik GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Unterer Schachen 1
5014 Gretzenbach

At a glance

Legal form
Limited Liability Company
UID
CHE-115.544.835
Founded
2010 · 16 years
Last commercial register change
August 26, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SOGretzenbach
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.88.06%
  • 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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