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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesGlattpark (Opfikon)Wassertech GmbH
Wassertech GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Wasser-Tech GmbH is the provision of services in the areas of sanitary, heating and ventilation engineering as well as climate technology. This includes the planning, design and implementation of projects in these areas, including compliance with official regulations and requirements.

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Offering

Products & services

Industry:Plumbing & Building ServicesRoofing
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3.9/5

Wassertech GmbH

Sheet Metal Work
✓ Offered4
Sanitary installations
Plan and design sanitary installations, drainage systems, supply lines, bathrooms, barrier-free bathrooms, and facilities for the reuse of service water, wells and rainwater collection tanks.
Heating system installation
Heating system installation including sizing of radiators and underfloor heating, setup and installation of pumps and pipes, as well as heating systems for district heating, biomass and photovoltaics.
Ventilation and air-conditioning technology
Ventilation and air-conditioning technology with planning for projects, calculation of air ducts, sizing of ventilation units, and selection of cooling, heating and ventilation systems.
Wellness construction
Wellness for the home with conversion of bathtubs into whirlpools or swim spas, as well as sauna construction, including planning, design and a written offer.
Trust & reputation

ranQ Trust Score of Wassertech GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Wassertech GmbH scores 62.0 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.70.824%
  • 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.27.910%
  • 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%
Wassertech GmbH scores 72.3 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.75.012%
  • 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%
Wassertech 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%
Wassertech GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wassertech GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Thurgauerstrasse 117
8152 Glattpark (Opfikon)
Opening hours
Mon
08:00 - 18:00
Tue
08:00 - 18:00
Wed
08:00 - 18:00
Thu
08:00 - 18:00
Fri
08:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-292.794.142
Founded
2019 · 7 years
Last commercial register change
January 14, 2022
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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