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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryUnterseenWenger Holzbau AG
Wenger Holzbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Wenger Holzbau AG is a timber construction firm offering engineered timber construction, carpentry (including renovation and refurbishment), timber system and façade construction, and the manufacture and installation of noise-barrier walls. Services include consulting, digital planning, prefabrication in in-house production facilities, logistics and on-site assembly.

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Products & services

Industry:Timber Construction & Carpentry
✓ Offered4
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Wenger Holzbau AG

Engineered timber construction
Advice and support for project development, design and construction; digital planning, prefabrication in our own plants, and assembly by established teams.
Carpentry works / conversions / renovations
On-site survey and analysis, consulting, design and construction, cost estimating, coordination with stakeholders, digital timber design planning, and assembly for conversion and renovation projects.
Timber system and timber façade construction
Advisory and cost estimating, digital planning, prefabrication in our own plants, transport and logistics, as well as assembly for timber system buildings, timber façades and serial timber modules.
Acoustic insulation
Noise barrier walls made from Swiss timber, EMPA-tested, for roads, motorways, railway tracks, private areas and industrial yards; manufacture of the elements in-house.
Trust & reputation

ranQ Trust Score of Wenger Holzbau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 96% · As of October 2026

Wenger Holzbau AG scores 56.2 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.57.924%
  • 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.40.910%
  • 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.70.08%
Wenger Holzbau AG scores 94.3 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.90.07%
Wenger Holzbau AG 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%
Wenger Holzbau AG scores 54.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wenger Holzbau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 4 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
3.8
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle3.84
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Lehnweg 7
3800 Unterseen

At a glance

Legal form
Corporation
UID
CHE-110.345.429
Founded
2003 · 23 years
Last commercial register change
February 5, 2020
Employees
51 to 100
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.
100.0
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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