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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesGwatt (Thun)Steiner-Stehlin AG
Steiner-Stehlin AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Steiner-Stehlin AG is the planning, installation and maintenance of heating, sanitary and solar systems, as well as the promotion of energy efficiency. The company also offers services in the Quooker sector.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered9
Plumbing installations
Plumbing installations for new builds, renovations and refurbishments; planning and implementation of bathrooms, replacement and renovation of plumbing lines, coordination of work and clean workmanship.
Bathroom renovations
Bathroom renovations and conversions for single-family homes, multi-family houses and apartments; from planning through coordination of tradespeople to execution.
Kitchen renovations
Kitchen renovations as part of new builds, renovations and full refurbishments; including coordination of the trades involved and replacement of plumbing lines.
Heating system installation and heating renovation
Heating system installations and heating renovations for new builds, renovations and replacement of existing systems; with a focus on modern heat pump systems, gas, oil, pellets, wood and district heating.
Heat pump systems
Heat pump systems for heating and domestic hot water; ground probes, air/water, brine and groundwater, also as replacement solutions or in combination with solar.
Domestic hot water and solar systems
Domestic hot water systems and solar systems for heating and hot water; combinations with heat pumps and pellet, wood and gas heating systems.
Maintenance, repair and upkeep
Regular maintenance and functional checks, repairs and upkeep of plumbing and heating systems, replacement and modernization of existing installations.
Water damage restoration
Water damage restoration including damage assessment, coordination of repair work and professional reinstatement of building services.
Water softening with evodrop
Water softening for the whole home with an installed system for limescale-free water.
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4.2/5

Steiner-Stehlin AG

Trust & reputation

ranQ Trust Score of Steiner-Stehlin AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Steiner-Stehlin AG scores 67.5 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.75.024%
  • 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.40.910%
  • 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%
Steiner-Stehlin AG scores 90.9 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.70.07%
Steiner-Stehlin 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%
Steiner-Stehlin AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Steiner-Stehlin AG 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 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

C. F. L.-Lohner-Strasse 19
3645 Gwatt (Thun)

At a glance

Legal form
Corporation
UID
CHE-106.145.761
Founded
1987 · 39 years
Last commercial register change
October 14, 2025
Employees
11 to 20
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.85.03%
    • Full methodology

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