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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryBernGnach Holzbau
Gnach Holzbau Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Gnach Holzbau is the planning and realization of timber construction projects, in particular the construction of individual timber buildings such as houses, treehouses and other timber structures.

AI-generated
Offering

Products & services

Industry:Timber Construction & Carpentry
✓ Offered8
Timber construction and carpentry
Advice, planning and execution of small and medium-sized construction projects; conversions, renovations, interior fit-out, roof structures, extensions and additions, as well as terraces and sheds.
Renovation and conversion
Restore timber-frame buildings, insulate walls and roofs, build partition walls, repair or replace shingle façades, and replace windows and doors.
Interior fit-out
Wall and ceiling linings, lightweight partition walls, installation or relocation of windows, roof windows and doors, as well as laying or sanding parquet and strip flooring.
Roof structures and roof renovations
Roof renovations, erection of roof trusses and custom constructions using sawn timber or roundwood.
Extensions and additions
Install dormers and roof dormers, attach balconies or cut them into the roof, as well as extend living space through attached rooms.
Terraces and outdoor structures
Larch decking, privacy screen structures, pergolas and sunshades for the outdoor area.
Shelters and carports
Carports, wooden shelters and storage sheds for vehicles, materials and equipment.
Tree houses
Individual tree houses according to customer wishes, open to special and non-routine designs.
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Gnach Holzbau

Trust & reputation

ranQ Trust Score of Gnach Holzbau

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Gnach Holzbau has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Gnach Holzbau scores 78.5 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%
Gnach Holzbau 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%
Gnach Holzbau scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Comparisons

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Location

Scheibenstrasse 26
3014 Bern

At a glance

Legal form
Sole proprietorship
UID
CHE-114.873.041
Founded
2009 · 17 years
Last commercial register change
February 19, 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.
67.0
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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