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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesMetal ConstructionGlattfeldenDipl. Ing. Fierz GmbH
Dipl. Ing. Fierz GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Dipl. Ing. Fierz GmbH is the planning, production and installation of high-quality modules and housings made of stainless steel and concrete for public toilets, including vandalism-proof fixtures, quickly operational toilet facilities and individually adapted maintenance of the facilities. Additionally, the company offers professional cleaning agents and accessories.

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Products & services

Industry:Metal Construction
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4.2/5

Dipl. Ing. Fierz GmbH

✓ Offered
6
Public toilet facilities
Planning, production and installation of public toilets, parking-lot WCs, barrier-free sanitary facilities and toilets for everyone in stainless steel or concrete.
Stainless-steel WC modules
Freestanding and modular WC installations made of stainless steel, in various sizes and designs such as Inox S, Inox M, Inox L and round variants.
Concrete WC modules
Freestanding WC installations made of concrete in sizes S, M and L for public spaces, with a modern and hygienic finish.
Modules
Multifunction, standard, family and shower modules for WC installations, also wheelchair accessible and for flexible installation or assembly.
Doors & access systems
Standard doors in stainless steel and access systems for WC installations and outdoor facilities.
Service & maintenance
Training for cleaning and maintenance instructions, delivery service for spare parts, cleaning agents and consumables, as well as repairs, maintenance and support.
Trust & reputation

ranQ Trust Score of Dipl. Ing. Fierz GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Dipl. Ing. Fierz GmbH scores 72.9 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.76.324%
  • 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.67.110%
  • 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.70.08%
Dipl. Ing. Fierz GmbH scores 86.7 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%
Dipl. Ing. Fierz 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%
Dipl. Ing. Fierz GmbH scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dipl. Ing. Fierz GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 13 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
4.7
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.713
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Industriestrasse 12
8192 Glattfelden
Opening hours
Mon
08:00 - 16:30
Tue
08:00 - 16:30
Wed
08:00 - 16:30
Thu
08:00 - 16:30
Fri
08:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-108.522.863
Founded
1996 · 30 years
Last commercial register change
September 4, 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.
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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