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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesStäfaHeizHirsch GmbH
HeizHirsch GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

HeizHirsch GmbH designs, installs and services heating, cooling and sanitary systems for single-family homes, multi-family buildings and commercial properties. Services include planning and consulting, maintenance and repairs, a 24/7 emergency service and support for new-builds and renovations, with technologies such as heat pumps, hybrid systems and freecooling.

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Products & services

Industry:Plumbing & Building Services
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HeizHirsch GmbH

✓ Offered
5
Heating Installation and Heat Pumps
Heating planning and installation for ground-source, air-to-water and conventional systems, including heat pumps, heating replacement, calculation, commissioning and handover.
Sanitary Installations and Bathroom Renovation
New installations, replacement and renovation of pipes, fittings and fixtures, including bathrooms and kitchens, hot water/boilers, plus fault repair and maintenance work.
Planning and Consulting for Building Services
Technical calculations, system comparisons and concept planning for heating, cooling and sanitary systems, supporting builders, property managers and architects from concept to execution.
Maintenance, Service and Emergency Call-out
Regular maintenance, functional checks, repairs and 24/7 emergency call-out service for heating, sanitary and cooling systems.
New Build and Renovation of Building Services
Complete building services for new construction and renovation with heating, cooling and sanitary systems from one source, from calculation and installation to handover.
Trust & reputation

ranQ Trust Score of HeizHirsch 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

HeizHirsch 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%
HeizHirsch GmbH scores 57.1 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.39.612%
  • 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%
HeizHirsch 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%
HeizHirsch 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

Weierstrasse 1
8712 Stäfa

At a glance

Legal form
Limited Liability Company
UID
CHE-177.370.892
Founded
2024 · 2 years
Last commercial register change
March 4, 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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