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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationCartignyIsomax Sàrl
Isomax Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of ISOMAX SARL is the design, manufacture and installation of products for the insulation and calorifuge of various systems, including: hydraulic networks, cold water networks, sewage networks, rainwater networks, ventilation systems, fire protection insulation, sound insulation, and refrigeration systems. The company also offers specialized insulation solutions and is committed to sustainable development through the use of environmentally friendly materials and production processes.

AI-generated
Offering

Products & services

Industry:Sealing & Insulation
✓ Offered8
Thermal insulation
Thermal insulation of buildings and pipes to limit heat losses and improve energy savings.
Refrigeration insulation
Refrigeration insulation for chilled-water networks and other installations requiring the maintenance of cold.
Acoustic insulation
Acoustic insulation for pipework and structures requiring reduced noise disturbance and acoustic treatment.
Fire-rated insulation
Fire-rated insulation for ventilation networks and walls, with EI30, EI60 and EI90 fire-resistance ratings.
Ventilation insulation
Insulation of ventilation ducts with double rock wool in sheet metal.
Heating insulation
Insulation of heating networks with PIR and glass wool, finished with PVC or stucco-martelé aluminium sheet metal.
Sanitary insulation
Insulation of sanitary networks with PIR and glass wool, finished with PVC or stucco-martelé aluminium sheet metal.
Manufacture and installation of fire-rated ducts
Manufacture and installation of Promatec ducts, with fire-rated ducts for technical installations.
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3.6/5

Isomax Sàrl

Trust & reputation

ranQ Trust Score of Isomax Sàrl: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

Isomax Sàrl scores 47.1 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.54.224%
  • 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.27.910%
  • 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.50.08%
Isomax Sàrl scores 72.3 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.75.012%
  • 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%
Isomax Sàrl 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%
Isomax Sàrl scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Isomax Sàrl reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.0 out of 5 stars from 2 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
3
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Rue du Trabli 13
1236 Cartigny
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-465.286.513
Founded
2019 · 7 years
Last commercial register change
April 2, 2024
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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