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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceGalgenenJosef Kessler AG Heizung/Sanitär
Josef Kessler AG Heizung/Sanitär Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Josef Kessler AG is the planning, installation and maintenance of heating, sanitary, climate and solar systems for residential and industrial buildings.

AI-generated
Offering

Products & services

Industry:Building MaintenancePlumbing & Building Services
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Josef Kessler AG Heizung/Sanitär

✓ Offered5
Heating system installations and maintenance work
Heating system installations, heat pumps, boiler replacement, wood heating systems, combinations with solar installations, chimney refurbishment, as well as service and maintenance of heating systems.
Sanitary installations and bathroom renovation
Sanitary installations in residential and industrial premises, home water connections, reservoirs and service lines, boiler installations and descaling, descaling systems, sewer lines, small wastewater treatment plants, as well as bathroom renovations.
Air-conditioning installations
Installation of high-performance, energy-efficient air-conditioning units for buildings.
Swimming pool technology
Installation and maintenance of swimming pool systems.
Solar installations
Installation of solar installations for domestic hot water generation and heating support.
Trust & reputation

ranQ Trust Score of Josef Kessler AG Heizung/Sanitär: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Josef Kessler AG Heizung/Sanitär scores 71.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.79.424%
  • 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.52.910%
  • 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.70.08%
Josef Kessler AG Heizung/Sanitär 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%
Josef Kessler AG Heizung/Sanitär 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%
Josef Kessler AG Heizung/Sanitär scores 6.6 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 35.6.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Josef Kessler AG Heizung/Sanitär reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 7 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 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Allmeindstrasse 1
8854 Galgenen

At a glance

Legal form
Corporation
UID
CHE-109.344.794
Founded
2001 · 25 years
Last commercial register change
August 21, 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.100.06%
  • 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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