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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesKüntenHäni + Zehnder AG
Häni + Zehnder AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Häni + Zehnder AG is the provision of services in the field of sanitary and heating technology, particularly in the areas of: * Repairs and maintenance of sanitary installations and heating systems * New construction and renovation of sanitary installations and heating systems * Installation and maintenance of water softening systems and boiler descaling * Heating system renovation and optimization * Assembly and repair of radiators The company thus offers a comprehensive range of services for the installation, maintenance and repair of sanitary installations and heating systems.

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Products & services

Industry:Plumbing & Building Services
✓ Offered
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4.0/5

Häni + Zehnder AG

7
Sanitary installations
Sanitary installations for new builds and conversions, bathroom refurbishments, renovation work in multi-family houses, replacement of bathtubs and shower tubs, tap and fixture replacement, and rainwater use.
Heating work
Heating installations for new builds and conversions, underfloor heating, radiator heating, boiler refurbishments, heat pumps, solar systems for heating support, and repairs.
Boiler descaling
Boiler descaling to reduce energy demand and to prevent later problems; recommended at regular intervals.
Water softening systems
Water softening systems for hygienically treated drinking water, less limescale buildup, reduced cleaning effort, and lower energy, detergent, and chemical consumption.
Repairs
Repairs to sanitary installations, service lines, and heating systems as a regular repair service.
Heating system refurbishment
Heating system refurbishments with replacement of existing heating systems and review of alternatives for a suitable refurbishment solution.
Radiators
Radiators in the heating sector, listed as a separate subpage alongside heating work and heating system refurbishment.
Trust & reputation

ranQ Trust Score of Häni + Zehnder AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Häni + Zehnder AG scores 65.0 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.73.124%
  • 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.35.310%
  • 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%
Häni + Zehnder 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%
Häni + Zehnder AG scores 83.3 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).83.322%
Häni + Zehnder AG scores 3.7 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 35.3.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Häni + Zehnder AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Grossacherweg 4
5444 Künten
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.911.257
Founded
1990 · 36 years
Last commercial register change
April 10, 2018
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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