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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesCarouge GeBert'eau SA
Bert'eau SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bert'eau sa is the installation of sanitary facilities in the cantons of Geneva and Vaud in Switzerland.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
Sanitary engineering office
Design office to answer questions, ensure project feasibility and support the planning of technical installations.
Sanitary installations for villas
Execution of tailor-made sanitary installations for villas, according to the specific requirements of the project.
Sanitary installations for apartment buildings
Realisation of sanitary installations for apartment buildings, including handling multiple bathrooms and the associated needs.
Sanitary troubleshooting and small works
Troubleshooting interventions, with small works carried out by a specialised team.
Technical installations for industry
Implementation of all types of technical installations for industry, with quality follow-up.
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4.1/5

Bert'eau SA

Trust & reputation

ranQ Trust Score of Bert'eau SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Bert'eau SA scores 67.0 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.65.024%
  • 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.95.08%
Bert'eau SA 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%
Bert'eau SA 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%
Bert'eau SA scores 12.3 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 35.12.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bert'eau SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 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
4.3
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.36
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Rue Baylon 8 bis
1227 Carouge Ge
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.964.307
Founded
1980 · 46 years
Last commercial register change
July 5, 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.
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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