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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesMosnangOberhänsli AG
Oberhänsli AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Oberhänsli AG is a building services company providing heating, sanitary and related installation and maintenance services. The Hälg Group has taken over Oberhänsli AG; the team and the location remain in place and the integration was completed on 1 January 2026.

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Products & services

Industry:Plumbing & Building Services
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4.1/5

Oberhänsli AG

10
Plant construction
Advisory, planning and installation of heating and cooling systems, ventilation and air-conditioning systems, as well as sanitary and bathroom conversions for new-build and refurbishment.
Service
Maintenance, upkeep and refurbishment of building services systems to prevent malfunctions, extend service life and preserve system value.
Heating/Cooling
Advisory, planning and installation of heating and cooling systems for different buildings, for new builds and refurbishments.
Heating system replacement
Complete heating refurbishment including replacement of oil or gas heating systems, conversion to heat pumps and energy optimisation.
Bathroom renovation
Bathroom renovations and refurbishments from a single source, from planning and dismantling to coordination and final installation.
Plumbing
Advisory, planning, installation and maintenance of sanitary installations, as well as implementation of durable plumbing solutions.
Ventilation/Air conditioning
Advisory, planning and installation of ventilation and air-conditioning systems for commercial premises, apartments, service companies, institutions, industry, hospitals and research.
Photovoltaics and complete energy solutions
Photovoltaic solutions with advisory, planning and implementation, including storage solutions, intelligent control and monitoring.
Building automation
Building automation for controlling and monitoring technical building systems.
Ventilation cleaning
Cleaning of ventilation systems to ensure air quality and system performance.
Trust & reputation

ranQ Trust Score of Oberhänsli AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Oberhänsli AG scores 70.9 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.68.124%
  • 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.72.110%
  • 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%
Oberhänsli AG scores 85.0 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.79.212%
  • 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%
Oberhänsli 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%
Oberhänsli AG scores 16.2 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 35.9.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.23.34%
Qualifications+0.00

Oberhänsli AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 16 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.4
of 5

Aggregated from 16 reviews across all connected sources

Sources
GGoogle4.416
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

November 7, 2024Media
Hälg übernimmt Oberhänsli AG Gebäudetechnik
leaderdigital.ch
September 11, 2023Media
Mosnang: So geht es nach dem Tod des Geschäftsleiters weiter
tagblatt.ch

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Location

Bachstrasse 12
9607 Mosnang
Opening hours
Mon
07:00 - 11:45, 13:00 - 17:00
Tue
07:00 - 11:45, 13:00 - 17:00
Wed
07:00 - 11:45, 13:00 - 17:00
Thu
07:00 - 11:45, 13:00 - 17:00
Fri
07:00 - 11:45, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-361.608.178
Founded
2018 · 8 years
Last commercial register change
October 18, 2022
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.85.03%
    • Full methodology

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