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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet Metal WorkOensingenGefra F. Gerardi
Gefra F. Gerardi Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gefra F. Gerardi provides flat roofing and building sheet-metal services, including flat roof installation, sheet-metal work, lightning protection, façades, repairs and maintenance, green roofs, and renovation consulting.

AI-generated
Offering

Products & services

Industry:Sheet Metal Work
✓ Offered7
Flat roofs
Flat roofs, including execution, renovation, repairs and maintenance for flat-roof construction.
Building sheet metal work
Building sheet metal work for roof and façade work, with additional services related to sheet metal work.
Lightning protection work
Lightning protection work for buildings, as part of the roof and building envelope offering.
Façades
Façade work in connection with the building envelope, roof and sheet metal work.
Repairs and maintenance
Repairs and maintenance for flat roofs, roof and façade components, and related building parts.
Roof greening
Roof greening for flat roofs, as a supplementary service in the roofing sector.
Advice and renovation
Advice and renovation covering flat roofs, building sheet metal work and the building envelope.
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4.1/5

Gefra F. Gerardi

Trust & reputation

ranQ Trust Score of Gefra F. Gerardi: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Gefra F. Gerardi 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%
Gefra F. Gerardi scores 78.5 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%
Gefra F. Gerardi 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%
Gefra F. Gerardi scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gefra F. Gerardi 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 October 2026.

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

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Location

Roggenweg 7
4702 Oensingen

At a glance

Legal form
Sole proprietorship
UID
CHE-107.595.500
Founded
1994 · 32 years
Last commercial register change
August 29, 2006
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.
67.0
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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