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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSteinhausenGreen Haustechnik GmbH
Green Haustechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Green Haustechnik GmbH is the planning, installation and maintenance of building technology systems, including sanitary, heating and ventilation systems, as well as the execution of conversion and renovation work in the field of building technology.

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Products & services

Industry:Plumbing & Building Services
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Green Haustechnik GmbH

6
Sanitary installations
Installation, repair and maintenance of sanitary installations; new installations in new builds and during conversions, service work, expert advice and 24/7 emergency service.
Heating technology
Installation, maintenance and repair of heating systems; heating systems from gas to heat pumps, efficiency optimisation and, on request, a heating and ventilation concept.
Ventilation systems
Installation, maintenance and repair of ventilation systems; individual ventilation concepts, efficient systems with heat recovery, and support to prevent mould growth and for better air quality.
Building services planning
Planning and realisation of building services installations; development of concepts as required and according to the given conditions, support from the idea to implementation.
Conversion and renovation
Conversion and renovation work on sanitary facilities and rooms; modernisation, redesign and tailor-made sanitary conversions.
Emergency service
24-hour emergency service for building services problems; rapid assistance with water damage, leaks and flooding, including repair and documentation.
Trust & reputation

ranQ Trust Score of Green Haustechnik GmbH

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

Green Haustechnik 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.
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%
Green Haustechnik GmbH scores 61.5 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.50.012%
  • 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%
Green Haustechnik GmbH scores 83.3 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).83.322%
Green Haustechnik GmbH 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.

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Location

Sumpfstrasse 26
6312 Steinhausen

At a glance

Legal form
Limited Liability Company
UID
CHE-168.688.237
Founded
2023 · 3 years
Last commercial register change
June 19, 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.
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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