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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsZiefenHess Holzbau AG Ziefen
Hess Holzbau AG Ziefen Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Hess Holzbau AG Ziefen designs and constructs new buildings, extensions and renovations, and provides interior finishing and photovoltaic installations. The company handles project planning and management and delivers projects on a turnkey basis for residential and commercial wooden-construction works.

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Products & services

Industry:General ContractorsTimber Construction & Carpentry
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4.1/5

Hess Holzbau AG Ziefen

✓ Offered9
Single-family houses
Turnkey single-family houses with advice, design, planning, factory production and installation.
Multi-family houses
Multi-family houses with design, planning, prefabrication in the workshop and assembly on the construction site.
Commercial and public buildings
Commercial and public buildings including the execution of halls, school annexes, work yards and other timber construction projects.
Conversion and renovation
Conversions and renovations with full refurbishments, insulating façade cladding, roof truss renovations, extensions, storey additions and winter gardens.
Extensions
Extensions with annexes, storey additions and winter gardens for more space or additional use of the plot ratio.
Interior fit-out
Interior fit-out with wall cladding, room dividers, parquet flooring, wooden panelling and staircases, as well as individual joinery work and repairs.
Photovoltaics
Photovoltaic systems for power generation on the own roof, as well as information on using solar energy for new and existing buildings.
Concept houses
Concept houses with a wide selection of base models at a fixed price, individual adaptations and prefabricated components from the workshop.
Project management end-to-end
Project management from consultation through design and planning to production and installation of the turnkey house.
Trust & reputation

ranQ Trust Score of Hess Holzbau AG Ziefen: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Hess Holzbau AG Ziefen 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.
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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%
Hess Holzbau AG Ziefen scores 90.2 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.82.07%
Hess Holzbau AG Ziefen scores 83.3 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).83.322%
Hess Holzbau AG Ziefen scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Hess Holzbau AG Ziefen reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Hauptstrasse 4
4417 Ziefen

At a glance

Legal form
Corporation
UID
CHE-207.416.354
Founded
2013 · 13 years
Last commercial register change
July 20, 2023
Employees
21 to 50
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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