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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZuzwil SgEugen Winter AG
Eugen Winter AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of E. Winter AG is the planning, consulting and implementation of heating and energy projects, particularly in the field of renewable energies such as heat pumps, solar energy and wood heating systems, as well as the renovation and conversion of buildings, including the installation of ventilation systems for apartments.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered8
Planning and consulting
Planning and consulting for heating and energy systems, tailored to conversion, new build and renovation as well as to suitable technical solutions in a single-family home.
Heat pumps
Heat pumps for using water, air or the ground as an energy source to generate heating heat in your own home.
Wood-fired heating
Wood-fired heating systems with logs, wood chips or pellets as a heating solution based on renewable, CO2-neutral combustion.
Solar energy
Solar energy systems to convert solar energy into heat for heating support and domestic hot water production.
Conversion, new build and renovation
Conversion, new build and renovation with advice and support when planning the desired work.
Apartment ventilation systems
Apartment and comfort ventilation systems with fresh air supply, air filtration and heat recovery.
Gas heating
Gas heating systems with natural gas or biogas, space-saving and in combination with solar systems or heat pump boilers for domestic hot water.
Oil heating
Oil heating systems with oil condensing technology, refurbishment of existing installations and combination with solar systems or heat pump boilers.
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Eugen Winter AG

Trust & reputation

ranQ Trust Score of Eugen Winter 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

Eugen Winter 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%
Eugen Winter AG 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%
Eugen Winter 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%
Eugen Winter 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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Comparisons

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Location

Lindaustrasse 22
9524 Zuzwil Sg
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.025.151
Founded
1984 · 42 years
Last commercial register change
August 30, 2016
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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