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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingOetwil Am SeeAdi Zollinger GmbH Spenglerei Sanitäre Anlagen
Adi Zollinger GmbH Spenglerei Sanitäre Anlagen Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Adi Zollinger GmbH primarily encompasses sheet metal work and the installation of sanitary facilities. Specifically, the company offers sheet metal work in various materials such as copper, Mattplus, stainless steel, and aluminum, which can be used for roofs, chimneys, and garden tables. Additionally, the company supports industrial enterprises in supplying their facilities, particularly in the industrial and cleanroom sectors.

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Offering

Products & services

Industry:Roofing
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4.2/5

Adi Zollinger GmbH Spenglerei Sanitäre Anlagen

Sheet Metal Work
✓ Offered5
Sheet-metal work
All sheet-metal work in copper, Mattplus, stainless steel and aluminium on pitched and flat roofs, balconies and terraces.
Sanitary facilities
Bathroom conversions and sanitary installations for private clients, as well as repairs for leaking taps and blocked drains.
Industrial facilities
Installations for industrial operations and clean rooms, including mains water, osmosis water, cooling water, compressed air, vacuum and various gases.
Flat roofing
Flat-roof waterproofing with Sarnafil or bituminous heat-welded membranes, including insulation and execution of the associated works from one source.
Sanitary repair service
Quick on-site repairs with standard spare parts and equipment for plumbing work on taps, drains and similar installations.
Trust & reputation

ranQ Trust Score of Adi Zollinger GmbH Spenglerei Sanitäre Anlagen: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Adi Zollinger GmbH Spenglerei Sanitäre Anlagen scores 78.0 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.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.77.410%
  • 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%
Adi Zollinger GmbH Spenglerei Sanitäre Anlagen scores 83.0 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.55.07%
Adi Zollinger GmbH Spenglerei Sanitäre Anlagen 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%
Adi Zollinger GmbH Spenglerei Sanitäre Anlagen scores 12.6 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 35.12.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Adi Zollinger GmbH Spenglerei Sanitäre Anlagen reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 20 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
4.6
of 5

Aggregated from 20 reviews across all connected sources

Sources
GGoogle4.620
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Willikon 38
8618 Oetwil Am See
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-379.335.465
Founded
2011 · 15 years
Last commercial register change
December 15, 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.88.06%
  • 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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