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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingOrsièresJM Sarrasin SA
JM Sarrasin SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

JM Sarrasin SA is a company active in building envelope and building services. It provides services in sheet metal work, roofs and facades, waterproofing, sanitary installations, heating, ventilation, maintenance, and energy advisory.

AI-generated
Offering

Products & services

Industry:Roofing
✓ Offered8
Sheet metal work
Custom fabrication in the workshop and installation on site of box gutters, downpipes, metal cladding, chimney work and ornamental elements for the building's sealing and aesthetics.
Roofing & facades
Renovation and installation of traditional roofs, flat roofs, technical roofs and ventilated or insulated façades, with photovoltaic integration and metal cladding.
Waterproofing
Design and installation of waterproofing systems for flat roofs, terraces, balconies, basement walls and special structures, with insulation and integrated safety accessories.
Sanitary installations
Installation, renovation and maintenance of potable water networks, wastewater lines and bathrooms, including design, water treatment, breakdown assistance and commissioning.
Heating installations
Design, installation and maintenance of heating systems with heat pumps, pellets, gas, heating oil and solar thermal, with controls, distribution and desludging.
Ventilation
Design, installation and maintenance of single-flow, double-flow, industrial and air-handling ventilation systems, with filtration, smoke extraction, controls and maintenance.
Maintenance & breakdown service
Weekday interventions for plumbing and sanitary issues, heating, ventilation, roofing and waterproofing, with inspections, small repairs, leak detection and roof maintenance contracts.
Energy study & subsidies
CECB+ audit, simulation, renovation plan, preparation of subsidy applications and administrative support to optimise the building’s energy performance.
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4.0/5

JM Sarrasin SA

Trust & reputation

ranQ Trust Score of JM Sarrasin SA: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

JM Sarrasin SA scores 74.3 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.61.424%
  • 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.84.710%
  • 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.100.08%
JM Sarrasin SA scores 59.7 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.39.612%
  • 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%
JM Sarrasin 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%
JM Sarrasin SA scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

JM Sarrasin SA reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 27 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 27 reviews across all connected sources

Sources
GGoogle4.227
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Route de la Proz 33
1937 Orsières
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-349.002.390
Founded
2024 · 2 years
Last commercial register change
October 17, 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.70.03%
    • Full methodology

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