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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSt. GallenE. Jenny
E. Jenny Logo
Verified· 2 sourcesTrust Score
Summary

About the company

E. Jenny provides planning, installation, renovation and maintenance services for sanitary systems, heating systems and photovoltaic/solar installations, and carries out repairs and service work. The website states a 24-hour emergency service is available to clients; sheet‑metal/Spengler work is currently not offered.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered4
Sanitary services
Sanitary solutions for new builds and renovations, planning and repair of sanitary facilities, bathroom refurbishments, pipe installations, and maintenance and service work.
Heating systems
Heating solutions from one source, implementation of sustainable heating systems, modernisation, troubleshooting of controls, valves, hydraulics, underfloor heating and water heating.
Photovoltaic systems and solar systems
Photovoltaic systems and solar systems for solar power, advice on systems and modules, planning and implementation for private houses.
Sheet metal work
Sheet metal work for roofs and building envelopes; currently, according to the website, no longer offered because the sheet metal workshop has been closed.
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4.1/5

E. Jenny

Trust & reputation

ranQ Trust Score of E. Jenny: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

E. Jenny 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%
E. Jenny scores 78.5 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%
E. Jenny 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%
E. Jenny scores 10.9 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 35.10.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

E. Jenny reaches a ranQ Trust Score of 4.1 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

Brühlgasse 15
9000 St. Gallen

At a glance

Legal form
Sole proprietorship
UID
CHE-107.725.406
Founded
1995 · 31 years
Last commercial register change
January 16, 1995
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.
67.0
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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