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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryIndustryPlastics manufacturerSchleitheimGonon Isolation AG
Gonon Isolation AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Gonon Isolation AG develops, manufactures and sells expanded polystyrene (EPS) insulation for floors, walls and façades. Its products include thermal, airborne-sound and impact-sound insulation, as well as façade insulation boards designed for moisture regulation and fire protection.

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Products & services

Industry:Plastics manufacturer
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4.3/5

Gonon Isolation AG

✓ Offered7
EPS insulation materials
EPS insulation boards and system products for perimeter, floor, wall and facade; suitable for new builds and renovations, with solutions for thermal, air and impact sound insulation.
XPS insulation boards
Load-bearing insulation boards made from extruded polystyrene for perimeter and plinth applications, as well as other uses in building construction.
PIR insulation boards
PIR rigid foam boards and laminated insulation boards with high thermal conductivity, including for facades and other insulation applications.
Facade insulation boards
Facade insulation boards for external thermal insulation composite systems, including fire-protection-approved solutions and multi-layer facade systems.
Perimeter insulation
Perimeter insulation boards for use in the ground and on building components in contact with soil, with low water absorption and high compressive strength.
Floor and impact sound insulation
Insulation boards, rolls and edge insulation strips for floor build-ups, separating ceilings, and for airborne and impact sound insulation.
Customer portal and business customer ordering
Customer portal for registered business customers with ordering option, login and registration with access within 1–2 business days.
Trust & reputation

ranQ Trust Score of Gonon Isolation AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 100% · As of November 2026

Gonon Isolation AG scores 75.0 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.71.324%
  • 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.73.510%
  • 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%
Gonon Isolation AG scores 89.3 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.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.70.07%
Gonon Isolation AG scores 86.7 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).86.722%
Gonon Isolation AG scores 53.6 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 35.97.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Gonon Isolation AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 17 customer reviews. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.5
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle4.517
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

August 18, 2020Media
Gonon Isolation AG: Dämmungen mit Qualitätsgarantie
baublatt.ch

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Location

Obere Hofwiesen
8226 Schleitheim
Opening hours
Mon
07:30 - 12:00, 13:15 - 17:30
Tue
07:30 - 12:00, 13:15 - 17:30
Wed
07:30 - 12:00, 13:15 - 17:30
Thu
07:30 - 12:00, 13:15 - 17:30
Fri
07:30 - 12:00, 13:15 - 16:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.718.879
Founded
1975 · 51 years
Last commercial register change
March 10, 2026
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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