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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsHagendornVONVIER AG
VONVIER AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of VONVIER GmbH is the planning, installation and maintenance of heating, ventilation, air conditioning and refrigeration systems (HVAC solutions) for residential and commercial buildings, including thermal building renovation.

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Products & services

Industry:Specialized Construction Installations
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VONVIER AG

✓ Offered6
Energy concept and overall planning
Energy concepts for building projects, alternative calculations for energy generation and supply, overall planning of building services, and implementation of the complete solution on schedule and within budget.
Ventilation & air conditioning
Design and installation of ventilation and air-conditioning systems, supply and exhaust air systems for residential and commercial buildings, and special systems for swimming pools and sports stadiums.
Heating
Advice, installation and commissioning of heating systems using geothermal energy, thermal energy or district heating; underfloor heating, air systems and ceiling-mounted cooling/heating units.
Cooling
Air-cooling solutions for shopping centres, office complexes, laboratories and data centres; system concepts for new builds and use of waste heat for heating or domestic hot water.
Plumbing and sanitary
Advice, design, execution and maintenance of sanitary systems; installation of main service lines and distribution systems as well as water and gas supply for buildings.
Building automation
Measuring, control, regulation and supervisory engineering for HVACSE systems; networking, monitoring, optimisation and demand-oriented building operation.
Trust & reputation

ranQ Trust Score of VONVIER AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

VONVIER AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
VONVIER AG scores 67.5 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.58.012%
  • 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%
VONVIER AG 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%
VONVIER AG scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Knowledge

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Location

Flurstrasse 8
6332 Hagendorn
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-255.533.703
Founded
2022 · 4 years
Last commercial register change
May 5, 2026
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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