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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZeiningenWET Schaper Suisse GmbH
WET Schaper Suisse GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of W. E. T. Schaper GmbH is the cleaning, disinfection and maintenance of drinking water systems, tanks, filters and wells, as well as the performance of chemical and chemico-physical analyses, risk assessments and the provision of accredited water samples. The company also offers consulting services for drinking water installations and supply, and has a network of partners for global and sustainable solutions.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Cleaning and disinfection of drinking-water systems
Cleaning and disinfection of drinking-water tanks, filter systems, wells and drinking-water installations; water quality testing, maintenance, upkeep, documentation and support with legal requirements.
Maintenance of evaporative cooling systems, wet separators and cooling towers
Cleaning, disinfection, internal controls, operating logbooks, water tests, hazard analyses and arrangements for accredited sampling for evaporative cooling systems, wet scrubbers and cooling towers.
Hygiene inspections and cleaning of ventilation systems
Initial and follow-up hygiene inspections, sampling, as well as cleaning and disinfection of ventilation and air-conditioning systems to ensure hygienic indoor air.
Heat exchanger cleaning
Cleaning of heat exchangers using tailored procedures and products, on site or in the works, without removal; to improve heat transfer and energy efficiency.
Cleaning agents
Own cleaning agents for sale for various surfaces and deposits; on request also produced under our own label.
Training
Training for employees and operators on VDI 6023-C, 42. BImSchV, DIN standards, BGVA and GUV guidelines, chlorine and chlorine-dioxide applications, as well as hygiene and safety briefings.
Cleaning and disinfection of drinking-water systems on ships
Cleaning and disinfection of drinking-water tanks, drinking-water systems and heat exchangers on sailboats, container ships and luxury liners during port calls or at sea.
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4.1/5

WET Schaper Suisse GmbH

Trust & reputation

ranQ Trust Score of WET Schaper Suisse GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

WET Schaper Suisse GmbH scores 75.1 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.76.724%
  • 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.68.910%
  • 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.78.08%
WET Schaper Suisse GmbH scores 73.9 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.70.212%
  • 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%
WET Schaper Suisse 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%
WET Schaper Suisse GmbH scores 10.6 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 35.10.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

WET Schaper Suisse GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 14 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 14 reviews across all connected sources

Sources
GGoogle4.714
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Römerstrasse 16
4314 Zeiningen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-364.419.260
Founded
2020 · 6 years
Last commercial register change
January 23, 2020
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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