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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsTreyvauxCUONY, DAFFLON S.A.
CUONY, DAFFLON S.A. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Cuony Dafflon is the installation, maintenance and repair of sanitary facilities, heating systems and solar thermal systems. This includes in particular: sanitary installations (bathrooms, kitchens, etc.), water supply, heating systems (including oil-fired boilers, gas-fired boilers, wood-fired boilers and solar heating), heat pumps, ventilation, and maintenance and repair of sanitary facilities and heating systems. The company offers its services in the cantons of Fribourg and Vaud.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered7
Sanitary installations
General sanitary installations, sanitary appliances, bathrooms, pipework, taps and fittings, descaling; renovation and conversion of sanitary facilities, functional kitchens and the fitting out of sanitary facilities.
Water supply
Water supply from the reservoir, installation of a water tank, hydrant service for municipalities; installation of potable water distribution networks, connection of buildings, water treatment.
Heating
Heating works with maintenance, hydraulic connection, air-to-water and ground-to-water heat pumps, condensing oil-fired boilers, gas boilers.
Ventilation
Installation of ventilation pipes, controlled ventilation, building sanitation, creation of mechanical ventilation and humidity regulation.
Solar heating
Thermal solar heating for domestic hot water and heating, with thermal solar collectors and automatic auxiliary heat.
Maintenance and repair
Breakdowns of sanitary and heating installations, repair of leaks, descaling of water heaters, replacement of parts and sanitary appliances, transformation of apartments.
Heat pumps
Air-to-air, air-to-water, ground-to-ground or ground-to-water, and water-to-water heat pumps, with possible connection to an existing central heating system.
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4.1/5

CUONY, DAFFLON S.A.

Trust & reputation

ranQ Trust Score of CUONY, DAFFLON S.A.: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

CUONY, DAFFLON S.A. scores 68.5 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.72.124%
  • 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.58.610%
  • 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.70.08%
CUONY, DAFFLON S.A. scores 85.5 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.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%
CUONY, DAFFLON S.A. 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%
CUONY, DAFFLON S.A. scores 6.0 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 35.6.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

CUONY, DAFFLON S.A. reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 9 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
4.6
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.69
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Vers Thivena 2
1733 Treyvaux
Opening hours
Mon
07:30 - 12:00, 13:15 - 17:15
Tue
07:30 - 12:00, 13:15 - 17:15
Wed
07:30 - 12:00, 13:15 - 17:15
Thu
07:30 - 12:00, 13:15 - 17:15
Fri
07:30 - 12:00, 13:15 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.078.726
Founded
1972 · 54 years
Last commercial register change
December 19, 2012
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.
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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