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

About the company

The core activity of EDR Haustechnik GmbH encompasses the planning, installation, maintenance and repair of building technology systems, particularly in the areas of: air conditioning technology, heating technology, refrigeration technology, heating systems, hot water preparation, switchgear, control technology, refrigeration systems and pressure retention systems. The company also offers services such as ventilation, degassing and new installation of building technology systems.

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Offering

Products & services

Industry:Plumbing & Building Services
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4.1/5

EDR Haustechnik GmbH

✓ Offered4
Building services engineering
Building services engineering, repair, maintenance and new installation of systems; ventilation, degassing, heating systems, domestic hot-water treatment, switchgear, control engineering and pressure maintenance systems.
Air-conditioning engineering
Air-conditioning engineering for repair, maintenance and new installation; ventilation, degassing, switchgear, control engineering and cooling systems.
Thermal engineering
Thermal engineering for repair, maintenance and new installation; heating systems, domestic hot-water treatment, switchgear, control engineering and pressure maintenance systems.
Refrigeration engineering
Refrigeration engineering for repair, maintenance and new installation; refrigeration systems, ventilation, degassing, switchgear and control engineering.
Trust & reputation

ranQ Trust Score of EDR Haustechnik GmbH: 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.

EDR 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.
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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%
EDR Haustechnik GmbH scores 83.0 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%
EDR Haustechnik GmbH 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%
EDR Haustechnik GmbH scores 4.0 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 35.4.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

EDR Haustechnik GmbH 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.

Knowledge

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Location

Bachwiesenstrasse 119
8047 Zurich

At a glance

Legal form
Limited Liability Company
UID
CHE-104.160.301
Founded
1998 · 28 years
Last commercial register change
September 27, 2011
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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