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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionAltendorfJosef Walker, Bauunternehmung AG
Josef Walker, Bauunternehmung AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Josef Walker Bau-Unternehmung AG encompasses three main areas: 1. **Building Construction**: The company offers services in building construction, including planning, execution, and preparation of construction projects. 2. **Scaffolding**: Josef Walker provides the construction and rental of aluminum scaffolding, including flexible and modern solutions. 3. **Customer Service**: The customer service includes specialized services such as injections, building sealing, core drilling, ceiling reinforcement, and dehumidifier rental.

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Products & services

Industry:Building Construction
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3.9/5

Josef Walker, Bauunternehmung AG

✓ Offered3
Building construction
Building construction for construction projects with forward-looking planning and preparation, up-to-date construction inventory, modern technology and flexible building modules.
Scaffolding
Scaffolding with lightweight aluminium scaffold systems, modern aluminium protective canopies, flexible planning and experienced installation teams.
Technical service
Technical service with injections, building waterproofing, core drilling, ceiling reinforcements with CFK lamellas and dehumidifier rental.
Trust & reputation

ranQ Trust Score of Josef Walker, Bauunternehmung AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Josef Walker, Bauunternehmung AG scores 54.4 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.54.224%
  • 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.88.08%
Josef Walker, Bauunternehmung 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%
Josef Walker, Bauunternehmung AG 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%
Josef Walker, Bauunternehmung AG scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Josef Walker, Bauunternehmung AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 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
3
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Brügglistrasse 10
8852 Altendorf

At a glance

Legal form
Corporation
UID
CHE-107.265.445
Founded
1975 · 51 years
Last commercial register change
June 10, 2022
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.100.06%
  • 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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