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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesPfäffikon SzGK Lüftung AG
GK Lüftung AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

GK Lüftung AG is a building services company specializing in ventilation and HVAC systems. Its services include consultancy, design, installation, maintenance, dismantling and client support for ventilation, heating, cooling and sanitary systems, as well as project work for new builds, renovations and tenant fit-outs.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
Consulting
Professional, goal-oriented and customer-focused advice for building services installations, without obligation from the first enquiry.
Planning
Planning of building services installations from concept to detailed design for new builds, conversions and modernisations.
Execution
Structured execution of projects for building services installations, including turnkey all-round solutions for demanding construction projects.
Service
Maintenance and service for efficient, long-lasting systems with the required maintenance intervals.
Dismantling
Dismantling and disposal of old systems during changes of use or modernisations.
Customer care
Customer care with expert advice as the basis for a partnership built on trust and fairness.
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3.9/5

GK Lüftung AG

Trust & reputation

ranQ Trust Score of GK Lüftung AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 54% · As of October 2026

GK Lüftung 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.
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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%
GK Lüftung AG scores 62.4 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
GK Lüftung AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
GK Lüftung AG scores 14.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GK Lüftung AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Talstrasse 31
8808 Pfäffikon Sz

At a glance

Legal form
Branch
UID
CHE-235.601.721
Founded
2022 · 4 years
Last commercial register change
October 28, 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.
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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