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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionMenzikenHerzog Bau AG
Herzog Bau AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Herzog Holz AG is timber construction and carpentry, particularly the planning and execution of: timber frame construction, roof structures, extensions and renovations, facade renovations, interior construction and renovation, and refurbishments. The company thus offers a wide range of services in the field of timber construction and carpentry.

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Products & services

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Herzog Bau AG

Civil Engineering
✓ Offered7
Above-ground construction
Masonry contractor work for garden pavilions, single-family homes and entire residential developments; execution of construction work of all kinds with many years of experience and specialist knowledge.
Underground construction
Property servicing with PVC sewer pipes or concrete pipes; laying of lines for telephone, water, TV and electricity using a fleet of machinery.
Industrial construction
Construction of industrial and commercial buildings as well as public buildings; projects for industrial and commercial clients with efficient construction methods.
Public buildings
Construction of schools, administrative buildings as well as retirement and nursing homes; careful and professional execution for public construction projects.
Extensions and conversions
Extensions such as lean-to sheds and garages as well as conversions of industrial and commercial buildings; also fitting loft apartments in suitable existing buildings.
Remediation works
Remediation for rising damp, water ingress, condensation formation and subsequent insulation of basement walls; solutions for masonry problems.
Masonry for customers
Smaller ancillary works and versatile masonry tasks for customers; professional execution even for jobs that do not require a major contract.
Trust & reputation

ranQ Trust Score of Herzog Bau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Herzog Bau AG 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%
Herzog Bau AG scores 85.5 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%
Herzog Bau AG scores 83.3 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).83.322%
Herzog Bau AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Herzog Bau AG 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

Turnplatzstrasse 9
5737 Menziken

At a glance

Legal form
Corporation
UID
CHE-105.543.828
Founded
2000 · 26 years
Last commercial register change
December 27, 2024
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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