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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingWinterthurGSK Leckortung GmbH
GSK Leckortung GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of GSK Leckortung is the execution of roof analyses, leak detection and roofing work for all types of roofs, particularly for flat roofs of industrial facilities, exhibition and fair buildings, workshops, school buildings and other new or renovated buildings. This also includes roof maintenance and inspections, renovation work, roof cleaning, replacement of gutters, retrofitting of fall protection systems and the installation of roof windows.

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Products & services

Industry:Roofing
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3.9/5

GSK Leckortung GmbH

3
Roof analysis and leak detection
Roof analysis, leak detection and condition assessment for flat and pitched roofs; non-destructive leak-tightness testing, moisture location and diagnosis of water ingress in building construction.
Sheet-metal work and roof repairs
Sheet-metal work, roof maintenance, renovations and repair work on flat and pitched roofs; roof cleaning, replacing gutters, retrofitting fall-arrest systems and maintenance contracts.
Roof windows
Installation and replacement of VELUX roof windows; more light during loft conversions or roof renovations, good insulation values, easy operation and optional blinds.
Trust & reputation

ranQ Trust Score of GSK Leckortung GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 54% · As of October 2026

GSK Leckortung GmbH 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%
GSK Leckortung GmbH scores 68.7 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.70.07%
GSK Leckortung GmbH scores 83.3 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).83.322%
GSK Leckortung GmbH scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GSK Leckortung GmbH 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

Schaffhauserstrasse 37
8400 Winterthur

At a glance

Legal form
Limited Liability Company
UID
CHE-337.197.275
Founded
2022 · 4 years
Last commercial register change
January 13, 2025
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.
88.0
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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