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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesVouvryJean-Carlo CORNUT SA
Jean-Carlo CORNUT SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Jean-Carlo CORNUT SA provides heating and sanitary services including project planning, installation, maintenance and emergency repairs, and installs heat pumps, oil/gas boilers, pellet systems and photovoltaic and thermal solar panels. The company performs building energy audits (CECB) and holds professional certifications for heat pump and solar system installations.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Heating installations
Turnkey heating installations, project study, installation of systems, commissioning and 7/7 after-sales service for heat pumps, gas or oil boilers, district heating and solar panels.
Heating maintenance and breakdown service
Annual maintenance, visual checks, breakdown service 7/7, maintenance contracts A, B and C, coverage of travel expenses, working time and, depending on the contract, spare parts.
Heat pumps
Heat pumps for heating houses and swimming pools, in new builds or renovations, with heat pump water heater or PAC boiler for domestic hot water.
Photovoltaic solar panels
Installation of photovoltaic solar panels to generate electricity, reduce the bill and increase energy self-sufficiency, with advice and installation in partnership with a Swissolar-certified company.
Solar thermal panels
Installation of solar thermal panels to produce heat and domestic hot water, mentioned as a complement to photovoltaic installations.
District heating
Connection to district heating to heat buildings and produce domestic hot water, including a study of the existing system and proposals for suitable solutions.
CECB energy advice
Advice and preparation of CECB energy assessments for renovating or selling a home, with evaluation of the building envelope, heating and consumption.
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4.1/5

Jean-Carlo CORNUT SA

Trust & reputation

ranQ Trust Score of Jean-Carlo CORNUT SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Jean-Carlo CORNUT SA scores 65.1 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.63.324%
  • 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.45.610%
  • 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.95.08%
Jean-Carlo CORNUT SA scores 89.3 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.70.07%
Jean-Carlo CORNUT SA 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%
Jean-Carlo CORNUT SA scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jean-Carlo CORNUT SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 5 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
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.25
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route de l'Industrie 9b
1896 Vouvry
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-114.157.772
Founded
2008 · 18 years
Last commercial register change
March 21, 2022
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.70.03%
    • Full methodology

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