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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZäziwilHerrmann Haustechnik
Herrmann Haustechnik Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company 'Herrmann Haustechnik' encompasses the provision of services in the field of building technology, particularly: sanitary work, pipeline installation, water softening, stable renovation and expansion, boiler decalcification, and solar technology. The company thus offers a wide range of technical services for the residential and living area.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
Plumbing
Plumbing work for new builds and conversions as well as bathroom and kitchen renovations.
Water pipelines
Service and source lines for water supply and pipeline construction.
Water softening
Water after-treatment for softening water.
Boiler descaling
Descaling of boilers.
Solar technology
Solar technology in the field of building services.
Stable renovation/expansion
New-build or conversion of stable facilities.
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3.6/5

Herrmann Haustechnik

Trust & reputation

ranQ Trust Score of Herrmann Haustechnik: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

Herrmann Haustechnik scores 42.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.37.524%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.27.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
Herrmann Haustechnik 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%
Herrmann Haustechnik 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%
Herrmann Haustechnik scores 3.1 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 35.3.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Herrmann Haustechnik reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 1.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
1
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle12
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Mattenweg 6
3532 Zäziwil

At a glance

Legal form
Sole proprietorship
UID
CHE-108.446.044
Founded
1996 · 30 years
Last commercial register change
October 8, 2014
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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