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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesEttiswilKL Montagen GmbH
KL Montagen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of KL Montagen GmbH encompasses the planning, installation, and maintenance of technical systems in the areas of ventilation, sanitary, and cleanroom technology. This includes, in particular: Ventilation installation, Sanitary installations, Cleanroom technical systems, Service and maintenance of ventilation, sanitary, and heating systems, Plastic ventilation. The company thus offers comprehensive services for the planning, installation, and maintenance of technical systems in various industries, especially in the construction sector.

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Offering

Products & services

Industry:Plumbing & Building ServicesSpecialized Construction Installations
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4.0/5

KL Montagen GmbH

✓ Offered6
Ventilation installation
Professional ventilation installation for residential and commercial buildings, including industrial, cleanroom and laboratory ventilation systems as well as process ventilation construction.
Cleanroom systems
Precise installation of cleanroom technology for industry, research and medicine, focusing on hygienic requirements and GMP systems.
Heating
Installation of modern heating systems for buildings, tailored to individual requirements in new builds and renovations.
Plumbing
Custom plumbing solutions from planning to professional implementation in new builds and renovations.
Service and maintenance
Maintenance, repairs and upkeep for ventilation systems as well as sanitary and heating systems.
Plastic ventilation
Installation of ventilation and process systems made of plastic, flexible, corrosion-free and easy to install.
Trust & reputation

ranQ Trust Score of KL Montagen GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 96% · As of October 2026

KL Montagen GmbH scores 59.6 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.66.724%
  • 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.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%
KL Montagen GmbH scores 83.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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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%
KL Montagen 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%
KL Montagen GmbH scores 11.1 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 35.11.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

KL Montagen GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 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
4.5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle4.52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Mattenweg 15
6218 Ettiswil

At a glance

Legal form
Limited Liability Company
UID
CHE-112.050.809
Founded
2004 · 22 years
Last commercial register change
June 5, 2026
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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