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

About the company

The core activity of Eronik GmbH is the provision of services in the field of construction management, particularly in the areas of: demolition and gutting (including hazardous substance remediation), moving and dismantling, construction management, soundproofing, and interior construction (planning and execution of gypsum partitions, system partitions, and ceiling systems).

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Products & services

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3.7/5

Eronik GmbH

✓ Offered9
Conversion / Renovation
Conversions, renovations and comprehensive conversions for residential and commercial properties; deconstruction, interior fit-out, drywall construction, floor coverings, plastering work and structural additions.
Dismantling / Deconstruction
Dismantling, removal, deconstruction and stripping of existing building structures down to the raw shell, including proper disposal and site cleaning.
Painting / Plastering
Painting work, drywall/ plasterboard work, wet plaster and rendering for interior spaces, including wall and ceiling surfaces as well as design adjustments.
Construction management / Planning and delivery of complete conversion projects
Construction management, planning and delivery of complete conversion projects with coordination of all trades, site management and turnkey handover.
Hazardous materials remediation
Hazardous materials remediation as part of deconstruction and restoration work, including proper disposal of contaminated building components in accordance with applicable regulations.
Civil engineering work
Civil engineering work for conversion and renovation projects, including masonry, subfloor bases, structural measures and structural additions.
Waterproofing
Waterproofing works as part of conversions and renovations to secure building structures and interior areas.
Fire protection measures
Fire protection measures as part of conversion and renovation projects, tailored to the requirements of the respective construction site.
Concrete cutting / Core drilling
Concrete cutting and core drilling for conversion, deconstruction and fit-out projects, for creating openings and penetrations.
Trust & reputation

ranQ Trust Score of Eronik GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

Eronik GmbH scores 59.3 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.75.024%
  • 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.40.910%
  • 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.35.08%
Eronik GmbH scores 61.5 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.50.012%
  • 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%
Eronik GmbH 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%
Eronik GmbH scores 11.7 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 35.11.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Eronik GmbH reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 4 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
5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Widenholzstrasse 1
8304 Wallisellen
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-397.599.996
Founded
2023 · 3 years
Last commercial register change
July 7, 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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