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

About the company

The core activity of Isoplan Gebäudetechnik is the planning, consulting and implementation of insulation and fire protection measures for buildings and infrastructure, including insulation, fire protection cladding, smoke extraction and sheet metal work.

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Offering

Products & services

Industry:Sealing & Insulation
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4.2/5

Isoplan AG

6
Pipe insulation
Insulation of piping for heating, domestic water and refrigeration lines; reduces heat losses, warming of drinking water, condensation, corrosion and sound transmission.
Ventilation insulation
Thermal insulation of ducts and pipes with synthetic rubber, fire-protection insulation and custom sheet-metal cladding to reduce heat loss, cold radiation and condensate.
Insulation of thermal storage tanks
Insulation of hot water and cold storage tanks with mineral wool, aluminium sheet and synthetic rubber; also includes pipes, connections and hydraulics.
Firestopping
Firestopping of cable, cable tray and pipe penetrations using rigid, flexible and other firestopping systems such as fire-protection pillows, fire-protection boxes and fire-protection sleeves.
Smoke extraction
Smoke extraction systems to create low-smoke zones, secure escape and rescue routes and enable natural or mechanical smoke venting in buildings.
Fire-protection cladding
Cladding and casing of structural components to protect against smoke, fire and heat; including fire-protection aprons and smoke aprons to divide smoke compartments.
Trust & reputation

ranQ Trust Score of Isoplan AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Isoplan AG scores 75.4 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.65.024%
  • 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.80.810%
  • 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%
Isoplan AG scores 83.5 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.86.512%
  • 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%
Isoplan AG 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%
Isoplan AG scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Isoplan AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 23 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
4.3
of 5

Aggregated from 23 reviews across all connected sources

Sources
GGoogle4.323
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Im Hölderli 13a
8405 Winterthur
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-255.981.993
Founded
2016 · 10 years
Last commercial register change
September 11, 2024
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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