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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationTavannesContrôle électrique Grandjean Sàrl
Contrôle électrique Grandjean Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Contrôle électrique Grandjean Sàrl performs electrical safety inspections of low-voltage installations and produces inspection reports in accordance with the Swiss OIBT regulation. The company advises property owners on corrective measures, carries out acceptance checks, and provides quotes for inspection and remedial work.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered1
Electrical inspection
Inspection of low-voltage electrical installations according to the OIBT, including inspection report, fault verification, acceptance testing and safety report.
Trust & reputation
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3.9/5

Contrôle électrique Grandjean Sàrl

ranQ Trust Score of Contrôle électrique Grandjean Sàrl: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Contrôle électrique Grandjean Sàrl scores 66.5 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.72.524%
  • 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.49.510%
  • 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%
Contrôle électrique Grandjean Sàrl scores 65.2 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.64.612%
  • 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%
Contrôle électrique Grandjean Sàrl 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%
Contrôle électrique Grandjean Sàrl scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Contrôle électrique Grandjean Sàrl reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 6 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
4.7
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.76
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Rue du Pasteur Frêne 4
2710 Tavannes
Opening hours
Mon
07:00 - 20:00
Tue
07:00 - 20:00
Wed
07:00 - 20:00
Thu
07:00 - 20:00
Fri
07:00 - 20:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-467.359.057
Founded
2021 · 5 years
Last commercial register change
December 1, 2021
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.76.06%
  • 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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