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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsPetit-LancyFlowAir Activity SA
FlowAir Activity SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of FlowAir SA is the installation, maintenance and repair of ventilation and air conditioning systems, including the dépoussiérage (dedusting) of ventilation systems and the installation of hygro-regulable ventilation systems for administrative and residential buildings.

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Products & services

Industry:Specialized Construction Installations
✓ Offered7
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4.0/5

FlowAir Activity SA

Troubleshooting
Fault finding on air-conditioning and ventilation systems, replacement of defective parts, checking proper operation and diagnosing error codes.
Maintenance
Maintenance contracts for technical installations, replacement of filters and belts, monitoring of the installations to prevent breakdowns and deterioration of the equipment.
Ventilation dust extraction
Cleaning and dust extraction of ventilation duct networks, supply and installation of inspection hatches, replacement of ventilation dampers, photo report before and after the intervention.
New installations
Feasibility study, costing of bids, installation of air-conditioning and ventilation systems, supply and installation of equipment and duct networks, diffusion and safety elements.
Renovation
Modification of existing ventilation installations under the ECO21 programme, improvement of energy gain, creation of mechanical ventilation and refurbishment of duct networks.
Optimisation
Replacement of outdated fans, control tailored to requirements, energy recovery with monobloc double-flow, improved comfort, hygiene and electrical consumption.
Humidity-controlled ventilation
Humidity-controlled ventilation systems for office buildings and rental properties, compliant with ECO21 criteria and the energy law.
Trust & reputation

ranQ Trust Score of FlowAir Activity SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

FlowAir Activity SA scores 57.7 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.69.624%
  • 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.35.310%
  • 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.50.08%
FlowAir Activity 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%
FlowAir Activity 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%
FlowAir Activity SA scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

FlowAir Activity SA reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle4.73
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Hier entsteht die Karte
Avenue des Morgines 12
1213 Petit-Lancy
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.439.139
Founded
1989 · 37 years
Last commercial register change
September 19, 2025
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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