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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesAadorfSteger AG
Steger AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Steger AG encompasses the planning, execution, maintenance and repair of installations in the following areas: heating, ventilation, refrigeration/air conditioning, sanitary facilities and renewable energies. The company also offers 24-hour service and maintenance, and manufactures individual solutions in its own workshop, including sheet metal constructions.

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Products & services

Industry:Plumbing & Building Services
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4.3/5

Steger AG

Specialized Construction Installations
✓ Offered7
Heating / Cooling
Installation of heating and cooling systems for apartments, industrial companies, shopping centres and special facilities; from concept development and planning to execution.
Sanitary installations
Sanitary installations for new builds and renovations, including planning and professional installation of sanitary facilities and water pipes.
Ventilation / Air Conditioning
Ventilation and air-conditioning solutions for shopping centres and industrial companies, from simple extract systems to controlled residential ventilation.
Renewable Energy / Service
Planning and installation of solar systems as well as alternative energy and heat-supply systems; plus service and maintenance services.
Consulting and Planning
Consulting for building-services projects, overall planning and development of tailor-made, efficient and sustainable solutions as required.
Maintenance and Emergency Service
Maintenance of systems as well as 24-hour emergency on-call duty for heating, sanitary installations and ventilation components.
Pre-production
Pre-production of installation components in the workshop to support quality and comprehensive service.
Trust & reputation

ranQ Trust Score of Steger AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of October 2026

Steger AG scores 79.5 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.75.624%
  • 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.81.910%
  • 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.88.08%
Steger AG scores 92.3 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.82.07%
Steger AG scores 86.7 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).86.722%
Steger AG scores 35.7 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 35.31.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.40.04%
Qualifications+0.00

Steger AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 24 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle4.624
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

March 27, 2024Media
Vier-Tage-Woche bei der Steger AG in Aadorf
thurgauerzeitung.ch
February 13, 2024Media
«Wir haben bewusst den Freitag gestrichen»
blick.ch
October 21, 2023Media
Steger Haustechnik in Aadorf: Baufirma führt Viertagewoche ein und wird von Fachpersonal überrannt
tagesanzeiger.ch
October 5, 2022Media
Aadorf: Steger AG führt Viertagewoche ein
thurgauerzeitung.ch

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Location

Wiesentalstrasse 34
8355 Aadorf
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
Closed
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.897.723
Founded
1978 · 48 years
Last commercial register change
June 23, 2026
Employees
21 to 50
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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