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

About the company

S.H. Sieber Holzbau GmbH is a timber construction company that provides complete home-building services. Its offerings include client consulting, preliminary design, in‑house architecture, construction management, production of log (block) houses and the use of natural building materials such as straw and wood-based insulation.

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Products & services

Industry:Timber Construction & Carpentry
✓ Offered7
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3.8/5

S.H. Sieber Holzbau GmbH

Consulting
Personal and free consultation for homebuilders, clarification of needs, feasibility and the path to home ownership.
Preliminary project
First preliminary project with rudimentary plans and a cost estimate based on the consultation and the given framework conditions.
Architecture
Individual architecture for your house, including building permit application, administration and consideration of ecological, economic and building-law aspects.
Construction management
Organisation, management and supervision of the construction site, obtaining tenders and awarding the work with all the trades involved.
Natural building materials
Use of straw, sheep’s wool, cellulose, wood-fibre boards, clay and lime renders, as well as cork, linoleum or vinyl flooring.
Building land
Own development-ready plots, as well as brokering and processing of real-estate transactions through contacts in the construction industry.
Natural-log block houses
Individually made natural-log block houses handcrafted, custom-made according to customer wishes.
Trust & reputation

ranQ Trust Score of S.H. Sieber Holzbau GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

S.H. Sieber Holzbau GmbH scores 56.6 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.70.824%
  • 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%
S.H. Sieber Holzbau GmbH scores 74.1 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%
S.H. Sieber Holzbau GmbH 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%
S.H. Sieber Holzbau GmbH scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

S.H. Sieber Holzbau GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Kantonsstrasse 95
6234 Triengen

At a glance

Legal form
Limited Liability Company
UID
CHE-425.287.021
Founded
2018 · 8 years
Last commercial register change
January 24, 2019
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.
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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