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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionLucerneDuon Systeme GmbH
Duon Systeme GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Duon consists in the planning, development and implementation of room acoustics solutions, in particular ceiling systems, lighting systems and acoustic ceilings, as well as in the provision of related services such as sound measurement, fire protection and customization.

AI-generated
Offering

Products & services

Industry:Interior Construction
✓ Offered7
Room acoustics
Acoustic ceilings, ceiling sails, ceiling baffles, closed ceilings, wall sound absorbers, office acoustics and acoustic pictures to improve room acoustics and reduce reverberation time.
Open ceilings
Open ceiling systems and grid ceilings for access to ventilation and installations, available in variants made of steel, aluminium or solid wood, and with lighting technology that can be combined.
Lighting systems
Recessed luminaires, lighting track systems, pendant lights and flat lighting systems for ceilings, coordinated with room design and ceiling systems.
Planning to realisation
Room-acoustic planning with sound calculations, controlling, feasibility studies, mock-ups, sample collection and turnkey or custom-made ceiling systems from one source.
Sound measurement
Acoustic calculator for calculating noise exposure and for planning sound insulation and noise protection measures for office acoustics.
Fire protection
Fire protection solutions with non-combustible insulation materials, in particular stone wool, for increased fire resistance and protection against fire and moisture.
Stock availability
Standard products directly from stock and fast delivery times for individual products for timely implementation of construction and renovation projects.
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3.9/5

Duon Systeme GmbH

Trust & reputation

ranQ Trust Score of Duon Systeme GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Duon Systeme GmbH scores 54.3 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.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.50.08%
Duon Systeme GmbH scores 84.7 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.95.212%
  • 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%
Duon Systeme 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%
Duon Systeme GmbH scores 6.9 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 35.6.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Duon Systeme GmbH reaches a ranQ Trust Score of 3.9 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.

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Location

Littauerboden 1
6014 Lucerne
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-442.490.244
Founded
2013 · 13 years
Last commercial register change
March 16, 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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