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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSavièsejema tech Sàrl
jema tech Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Jema Tech Sàrl encompasses the planning, installation, and maintenance of heating, sanitary, and renewable energy systems, including the provision of energy consulting and planning solutions. The activities specifically include: Heating: installation and maintenance of heating systems, including heat pumps, wood heating, solar thermal systems, and fossil fuels; Sanitary: installation and maintenance of sanitary facilities; Energy consulting and planning: consulting and planning of energy projects, including the implementation of energy audits and the development of energy concepts; Energy efficiency solutions: installation and maintenance of systems to increase energy efficiency, including remote control of heating systems. The company also offers comprehensive services, including project planning, coordination of craftsmen, and site supervision.

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Offering

Products & services

Industry:Plumbing & Building Services
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3.7/5

jema tech Sàrl

✓ Offered5
Heating
Heating for renovations and new builds, with heat pumps, wood boilers, water heaters, fossil-fuel combustion boilers and control systems.
Sanitary installations
Sanitary installations for renovations and new builds, with building technology solutions and associated breakdown service.
Energy studies and advice
Energy studies and advice, with personalized support, administrative procedures, quotations and submission for the public inquiry for the refurbishment of installations.
Turnkey heating installation refurbishment
Turnkey refurbishment of heating installations, with coordination of third-party trades, site management and acceptance of the installation.
Heating breakdown service
Breakdown service for heating systems, with dedicated contact and intervention during the specified opening hours.
Trust & reputation

ranQ Trust Score of jema tech Sàrl: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

jema tech Sàrl scores 58.0 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.78.08%
jema tech Sàrl scores 61.5 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.50.012%
  • 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%
jema tech Sàrl scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
jema tech Sàrl scores 2.3 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 35.2.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

jema tech Sàrl reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». 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

Chemin des Grands Praz 75
1965 Savièse

At a glance

Legal form
Limited Liability Company
UID
CHE-160.829.468
Founded
2023 · 3 years
Last commercial register change
August 3, 2023
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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