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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesZurichTK Kälin Sanitär GmbH
TK Kälin Sanitär GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of TK Kälin Sanitär GmbH is the provision of sanitary services, including planning, consulting and execution of sanitary installations and repairs. The company offers comprehensive sanitary services from A to Z and has experienced specialist staff.

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Products & services

Industry:Plumbing & Building Services
✓ Offered7
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4.1/5

TK Kälin Sanitär GmbH

Plumbing work
Plumbing work from A to Z, from advice and planning to execution; conversions, renovations and repairs to sanitary installations.
Service and repair work
Repairs to sanitary installations, repair or replace a tap, installation of descaling and water treatment systems as well as boiler service and boiler descaling.
Bathroom renovation
Complete solution for bathroom renovations with advice, planning and execution; coordination with construction partners for conversions in a house or apartment block.
Apartment renovation
Renovation of apartments as part of conversion and renovation projects, including coordination and execution by the sanitary team.
Renovation of basement distributions
Renovation of basement distribution systems as part of conversion and renovation work on sanitary installations.
Riser pipe renovation
Riser pipe renovation of sanitary pipework and systems as part of conversion and renovation projects.
Planning
Planning for sanitary projects by an external engineer, aligned with ideas and project requirements.
Trust & reputation

ranQ Trust Score of TK Kälin Sanitär GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

TK Kälin Sanitär GmbH scores 70.6 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.61.924%
  • 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.72.110%
  • 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.95.08%
TK Kälin Sanitär GmbH 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%
TK Kälin Sanitär 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%
TK Kälin Sanitär GmbH scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

TK Kälin Sanitär GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 16 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
4.2
of 5

Aggregated from 16 reviews across all connected sources

Sources
GGoogle4.216
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Altstetterstrasse 280
8047 Zurich
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 15:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-108.618.026
Founded
1997 · 29 years
Last commercial register change
April 23, 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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