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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringVillars-Sur-GlâneR.G. Riedweg et Gendre SA
R.G. Riedweg et Gendre SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

R.G. Riedweg et Gendre SA provides building-services engineering, offering design, consulting and specialist services for heating, ventilation, air conditioning, sanitary systems, electrical installations and safety/sûreté solutions.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered3
Advisory
Advisory and analyses for heating, ventilation, air conditioning, plumbing, electrical engineering and AEAI safety; support from the pre-design stage, selection of service providers, site follow-up and energy-focused thinking.
Interdisciplinary coordination
Advisory and analyses for all building services; coordination with other specialized engineers and trades, an end-to-end CVSE engineering solution for all types of projects.
Technical expert reports
Neutral, detailed technical expert reports in the event of a dispute, identification of defects, anomalies or poor workmanship, reminder of the legal bases and standards, measures to be taken.
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4.1/5

R.G. Riedweg et Gendre SA

Trust & reputation

ranQ Trust Score of R.G. Riedweg et Gendre SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

R.G. Riedweg et Gendre SA scores 71.3 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.78.124%
  • 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.78.08%
R.G. Riedweg et Gendre SA scores 69.0 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.70.07%
R.G. Riedweg et Gendre 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%
R.G. Riedweg et Gendre SA scores 74.3 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 35.74.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

R.G. Riedweg et Gendre SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle56
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Route du Petit-Moncor 1 e
1752 Villars-Sur-Glâne

At a glance

Legal form
Branch
UID
CHE-387.936.402
Founded
2021 · 5 years
Last commercial register change
September 23, 2026
Employees
11 to 20
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.
76.0
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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