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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryZwingenHolzbau Roy Hänggi AG
Holzbau Roy Hänggi AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Holzbau Roy Hänggi AG is the planning and execution of timber construction projects, including carpentry work, timber system construction, roofing, roof renovations, terrace floors and facade renovations. The company also offers services in the field of timber modular construction, structural engineering and carports.

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Products & services

Industry:Timber Construction & CarpentryRoofing
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Holzbau Roy Hänggi AG

✓ Offered6
Carpentry
Carpentry works, timber structures and timber construction of all kinds; roof trusses, ceilings, carports, garden houses and exposed roof trusses.
Timber system construction
Timber system and timber element construction with prefabricated walls, floors and load-bearing structures; single-family houses, extensions, storey additions, multi-family houses and public buildings.
Roofing
Roof structure and professional roof covering from one source; flat sliding tiles, Biberschwanz tiles and Eternit slate for new builds and conversions.
Roof renovations
Planning and execution of roof renovations including roof insulation; advice on finishing wishes and material selection, from aluminium to tiled roofs.
Terrace flooring
Terrace flooring and terrace gratings made of wood or wood-plastic composite for terrace and balcony.
Roof windows
Roof windows as part of the carpentry business; listed on the website as a separate service and supplemented with a VELUX information note.
Trust & reputation

ranQ Trust Score of Holzbau Roy Hänggi AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Holzbau Roy Hänggi AG scores 71.6 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.75.024%
  • 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.100.08%
Holzbau Roy Hänggi AG scores 76.6 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.79.212%
  • 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.55.07%
Holzbau Roy Hänggi AG 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%
Holzbau Roy Hänggi AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Holzbau Roy Hänggi AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Obermattweg 2
4222 Zwingen
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-243.956.356
Founded
2018 · 8 years
Last commercial register change
October 13, 2025
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.
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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