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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSion 4Bornet Frères SA
Bornet Frères SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Bornet Frères SA provides roofing and building-envelope services, including metalwork fabrication, and installs heating, ventilation and sanitary systems (CVS). Additional services include waterproofing, terrace coverings, maintenance and diagnostics, safety systems, training and emergency repairs.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered6
Sheet-metal roofing
Sheet-metal roofing for pitched roofs and flat roofs, with tiles, boards, sheet metal, sandwich panels, ventilated facades and sheet-metal parts made in the workshop.
Heating
Installation and advice for heating systems, in new builds or renovations, with selection of the heat supply system according to the home, size and budget.
Ventilation
Design and installation of custom ventilation systems, mechanical ventilation with heat recovery, supply-only ventilation, kitchen or WC ventilation, connection of monoblock units and hoods.
Sanitary installations
Sanitary installations from the water supply line to the fixtures, with bathrooms, water networks, automatic watering, meters, sprinklers and complete or partial renovations.
CVS maintenance service
Regular maintenance of heating, ventilation and sanitary installations, with tailored inspections, monitoring of operation, prevention of problems and extending service life.
Breakdown service
Breakdown assistance for emergencies related to water, heating or the roof, with intervention on leaks and resolution of unforeseen problems.
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4.2/5

Bornet Frères SA

Trust & reputation

ranQ Trust Score of Bornet Frères SA: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Bornet Frères SA scores 68.4 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.53.724%
  • 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.88.110%
  • 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.88.08%
Bornet Frères SA scores 87.1 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%
Bornet Frères 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%
Bornet Frères 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

Bornet Frères SA reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.0 out of 5 stars from 31 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
of 5

Aggregated from 31 reviews across all connected sources

Sources
GGoogle431
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Hier entsteht die Karte
Chemin St-Hubert 20
1950 Sion 4
Opening hours
Mon
07:45 - 12:00, 13:30 - 17:30
Tue
07:45 - 12:00, 13:30 - 17:30
Wed
07:45 - 12:00, 13:30 - 17:30
Thu
07:45 - 12:00, 13:30 - 17:30
Fri
07:45 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.574.876
Founded
1991 · 35 years
Last commercial register change
December 22, 2025
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.85.03%
    • Full methodology

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