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

About the company

The core activity of Isodicht GmbH is the provision of services in the field of building sealing, particularly in the following specific areas: joint sealing, fire stopping, Combiflex sealing, vapour and water membranes, and concrete injections. The company offers consulting, planning and execution of sealing solutions for new buildings, renovations and restorations to prevent damage from moisture, water and fire and to ensure the tightness of buildings.

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Products & services

Industry:Sealing & Insulation
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isodicht GmbH

✓ Offered5
Joint sealing
Joint sealings for new builds and renovations, for joints on ceramic, stone, glass, timber, metal, concrete, façades, bathrooms, terraces and other building components.
Firestopping
Firestopping to close openings in walls, ceilings and air ducts, so that in the event of a fire gases, smoke or flames do not spread.
Combiflex sealings
Combiflex sealings for cracks, construction and expansion joints as well as components with different settlement behaviour; sealing with tape and adhesive.
Vapour and water membranes
Vapour and water membranes for sealing structures, particularly for ventilated rainscreen façades, to prevent moisture, water and rot damage.
Concrete injections
Concrete injections for pressure-injecting and sealing cracks with synthetic resin; used for leaking concrete structures with water ingress.
Trust & reputation

ranQ Trust Score of isodicht GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 96% · As of October 2026

isodicht GmbH scores 67.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.66.724%
  • 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.45.610%
  • 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.95.08%
isodicht GmbH scores 83.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
isodicht GmbH scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
isodicht GmbH scores 4.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.4.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

isodicht GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 5 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
4.4
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.45
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Freiestrasse 57
8406 Winterthur

At a glance

Legal form
Limited Liability Company
UID
CHE-168.148.998
Founded
2011 · 15 years
Last commercial register change
February 25, 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.
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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