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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionRorschacherbergKogo Montagen & Holzbau GmbH
Kogo Montagen & Holzbau GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of KOGO GmbH is the execution of assembly and carpentry work, particularly in the areas of: window and door assembly, aluminum shutter and aluminum box assembly, interior finishing, glass assembly, sealing and carpentry. The company also offers a 24-hour window service.

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Offering

Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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3.7/5

Kogo Montagen & Holzbau GmbH

✓ Offered8
Windows
Window types and professional installation for renovation and new construction, focusing on thermal insulation, sound protection and burglary resistance.
Timber construction
Timber constructions for attic conversions, façades, barn conversions, element construction, insulation, load-bearing structures, garden sheds and pergolas.
Interior fit-out
Interior fit-out in timber for floors, walls, ceilings and staircases, including special fit-out wishes from the basement up to the roof.
Doors
Installation of doors for new construction and renovation, as part of the craft offering around windows and timber construction.
Glass installation
Glass installation with glazing equipment, including for complex installation work and short-term on-site readiness.
Sealing work
Sealing work related to windows and installation work, as a complementary craft service in the building envelope sector.
Aluminium shutters / aluminium frames
Window shutters and frames made of aluminium or timber, with or without louvres, in various designs and colours.
24h window service
24h service for defective windows, cracked panes and window parts that no longer work properly.
Trust & reputation

ranQ Trust Score of Kogo Montagen & Holzbau GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 100% · As of October 2026

Kogo Montagen & Holzbau GmbH scores 48.7 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.46.524%
  • 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.52.910%
  • 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.50.08%
Kogo Montagen & Holzbau 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%
Kogo Montagen & Holzbau GmbH scores 86.7 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).86.722%
Kogo Montagen & Holzbau GmbH scores 11.5 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 35.22.94%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Kogo Montagen & Holzbau GmbH reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.4 out of 5 stars from 7 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
3.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle3.47
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

September 15, 2021Media
KOGO Montagen/Holzbau übernimmt Holzbau Gübeli
rorschacherecho.ch

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Location

Goldacherstrasse 97
9404 Rorschacherberg

At a glance

Legal form
Limited Liability Company
UID
CHE-114.287.239
Founded
2008 · 18 years
Last commercial register change
May 8, 2008
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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