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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersZweidlenHugo Keiser AG
Hugo Keiser AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Hugo Keiser AG encompasses the planning, implementation and maintenance of solutions in the field of building technology and renewable energies. This includes in particular: heating construction and renovations (heat pumps, wood/pellet heating systems, ground source heat pumps, oil and gas heating systems), sanitary work (bathrooms, water softening/demineralization, sanitary repairs, boiler service), and solar systems (photovoltaics, solar thermal systems, solar roof tiles, storage/battery systems). The company thus offers comprehensive solutions for building technology and renewable energies, positioning itself as a competent contact for overall solutions in the field of sustainable and economically viable energy generation.

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Offering

Products & services

Industry:Energy Suppliers
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Hugo Keiser AG

Solar & Photovoltaics
✓ Offered5
Heating construction and heating refurbishments
Heating construction, heating refurbishments and planning, installation and replacement of heating systems; heat pumps, wood/pellet heating systems, ground-source heating systems as well as oil and gas heating systems.
Plumbing installations and bathroom refurbishments
Plumbing installations, complete bathroom refurbishments and bathroom renovations, bathroom design, replacement of sanitary fixtures as well as water softening and descaling.
Solar systems and photovoltaics
Solar systems for solar power/photovoltaics, solar thermal energy/solar thermal systems, storage and battery systems as well as solar roof tiles for new builds and refurbishments.
Maintenance and service subscriptions
Regular inspections and maintenance for heating, plumbing and solar systems; service subscriptions for the heating system, plumbing system, thermal solar system or only boiler descaling.
Info center for home technology and solar systems
Exhibition and consultation center with a permanent display of solar and heating systems; show, demonstrate and explain products and services on site.
Trust & reputation

ranQ Trust Score of Hugo Keiser AG: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Hugo Keiser AG scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Hugo Keiser 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%
Hugo Keiser AG scores 85.0 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).85.022%
Hugo Keiser AG scores 7.1 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 35.7.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hugo Keiser AG reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Unterwerkstrasse 6
8192 Zweidlen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.414.961
Founded
1989 · 37 years
Last commercial register change
October 1, 2020
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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