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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsEpagnyGremion et Staremberg SA
Gremion et Staremberg SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gremion et Staremberg SA provides sheet metal work, roofing, waterproofing and facade cladding services. The company works with materials such as copper, zinc, aluminium and stainless steel, and also carries out custom metalwork and roof renovation projects.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered5
Sheet metal work
Custom fabrication and installation of roof details: gutters, downpipes, cladding for dormers, chimney fittings, ventilation, solar panels and roof windows.
Roofing
Installation of roof coverings in flat tiles or interlocking tiles, terracotta or concrete, corrugated or flat Eternit, and slate; maintenance and repair of roofs.
Waterproofing
Bituminous, synthetic and liquid waterproofing works; insulation of roofs, terraces, walls and facades; treatment of water ingress and roof maintenance contracts.
Facade cladding
Facade cladding with tiles, Eternit, stainless steel, copper or zinc, including advice for carrying out and renovating facades.
Apprentice training and continuing education
Regular reception of apprentices in sheet metal work, roofing and waterproofing; support for advanced training, internal courses and training related to new materials and safety.
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4.1/5

Gremion et Staremberg SA

Trust & reputation

ranQ Trust Score of Gremion et Staremberg SA: 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.

Gremion et Staremberg SA 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.
x
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%
Gremion et Staremberg SA scores 74.8 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.75.012%
  • 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%
Gremion et Staremberg SA scores 83.3 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).83.322%
Gremion et Staremberg SA scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gremion et Staremberg SA 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

Chemin de la Batteuse 6
1663 Epagny

At a glance

Legal form
Corporation
UID
CHE-485.499.785
Founded
2019 · 7 years
Last commercial register change
January 17, 2019
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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