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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsRebeuvelierSchaller Olivier Sàrl
Schaller Olivier Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Schaller Olivier Sàrl provides heating, sanitary and ventilation services including installation, bathroom renovations and heating system refurbishment. The company installs systems such as heat pumps, pellet boilers and geothermal probes, and also offers solar installations (in collaboration with Eco6therm), water treatment and rainwater recovery solutions.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered11
Heating refurbishments
Turnkey heating refurbishments, from study to execution, including permit and subsidy applications to optimize thermal comfort.
Plumbing and heating installations
Plumbing and heating installations for simple or complex projects, including work in the heating and plumbing fields.
Bathroom renovations
Bathroom renovations, with work related to sanitary fixtures and the arrangement of bathing areas.
Controlled ventilation
Controlled ventilation for buildings, offered as a main activity area alongside heating and plumbing.
Solar installations
Solar installations, including design, installation and maintenance of solar systems in collaboration with Eco6therm.
Installation of sanitary fixtures
Installation of sanitary fixtures, including fitting and equipping bathroom and sanitary facilities.
Water treatment
Water treatment for sanitary installations to improve water quality and protect the equipment.
Rainwater harvesting
Rainwater harvesting for sanitary installations and water management in buildings.
Heat pump
Heat pump for heating, presented among the heating solutions offered.
Pellet boiler
Pellet boiler for heating systems, proposed as a heating renovation solution.
Geothermal probe
Geothermal probe for heating installations, offered as part of renewable heating solutions.
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4.2/5

Schaller Olivier Sàrl

Trust & reputation

ranQ Trust Score of Schaller Olivier Sàrl: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Schaller Olivier Sàrl scores 72.8 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.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.78.08%
Schaller Olivier Sàrl scores 83.0 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.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%
Schaller Olivier Sàrl 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%
Schaller Olivier Sàrl scores 4.3 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 35.4.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Schaller Olivier Sàrl 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.

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Location

Montchemin 18
2832 Rebeuvelier
Opening hours
Mon
07:30 - 11:45, 13:15 - 17:00
Tue
07:30 - 11:45, 13:15 - 17:00
Wed
07:30 - 11:45, 13:15 - 17:00
Thu
07:30 - 11:45, 13:15 - 17:00
Fri
07:30 - 11:45, 13:15 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.464.027
Founded
2002 · 24 years
Last commercial register change
January 9, 2019
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.
88.0
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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