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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesGlazieryZurichTriseko GmbH
Triseko GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Triseko GmbH is the manufacture, assembly and distribution of windows, doors, shutters and sunshades, including plastic windows, aluminum windows, lift-slide doors, entrance doors, front doors, facades and conservatories.

AI-generated
Offering

Products & services

Industry:Glaziery
✓ Offered6
Windows and doors
Windows in plastic and aluminium, lift-and-slide doors, entrance and front doors; advice, planning, installation and repairs for residential and construction projects.
Aluminium façade construction
Aluminium post-and-beam façades for vertical façades, passive-house applications, skylights and panoramic design façades.
Conservatories
Made-to-measure conservatories in different shapes and roof pitches; light-filled solutions with Schüco systems for extra space and year-round use.
Sun and weather protection
Awning systems, vertical blinds and special shading from Stobag; solutions for sun protection and shading around the building.
Roller shutters and blinds
Roller shutters, folding shutters and louvre blinds in various versions for privacy, sun and weather protection.
Repair and installation service
Installation and repairs of windows, doors, roller shutters and sun awnings on site, including inspection and professional execution.
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3.8/5

Triseko GmbH

Trust & reputation

ranQ Trust Score of Triseko GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Triseko GmbH scores 52.0 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.36.124%
  • 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.55.910%
  • 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.95.08%
Triseko GmbH scores 80.9 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.86.512%
  • 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%
Triseko GmbH scores 83.3 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).83.322%
Triseko 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

Triseko GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 out of 5 stars from 8 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
3
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle38
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Töpferstrasse 28
8045 Zurich
Opening hours
Mon
09:00 - 18:00
Tue
09:00 - 18:00
Wed
09:00 - 18:00
Thu
09:00 - 18:00
Fri
09:00 - 14:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-402.410.138
Founded
2016 · 10 years
Last commercial register change
October 27, 2017
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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