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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsForel (Lavaux)Roos Ventilation SA
Roos Ventilation SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is providing services in the field of energy efficiency, particularly in the areas of heating, ventilation and air conditioning, as well as carrying out renovation and conversion projects for private individuals, companies and public institutions.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered3
Ventilation and air conditioning
Design, supply and installation of ventilation, air-conditioning and cooling systems, with tailor-made services for private clients, industry, restaurants, hospitals and public authorities.
Maintenance of ventilation and air-conditioning systems
Maintenance of ventilation and air-conditioning systems, dust removal, ventilation of shelters and cleaning of ducts.
Air-conditioning and clean rooms
Air-conditioning and clean rooms, including diagnosis of the systems, analysis of air and water, energy recovery and savings, humidification and dehumidification.
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4.0/5

Roos Ventilation SA

Trust & reputation

ranQ Trust Score of Roos Ventilation SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Roos Ventilation SA scores 52.0 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.41.424%
  • 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.63.210%
  • 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%
Roos Ventilation SA scores 89.3 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.70.07%
Roos Ventilation 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%
Roos Ventilation SA scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Roos Ventilation SA reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.4 out of 5 stars from 11 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
3.4
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle3.411
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Route de l'Industrie 2
1072 Forel (Lavaux)
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 15:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.941.683
Founded
1986 · 40 years
Last commercial register change
July 1, 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.
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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