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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionEberseckenRoos Josef & Erich Bau GmbH
Roos Josef & Erich Bau GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Roos Josef & Erich Bau GmbH is the execution of construction projects, particularly in the field of high-rise buildings, agricultural buildings, renovations, conversions and refurbishments. The company offers a wide range of services, including masonry work, in-situ concrete construction, new construction, renovation, replacement construction, exposed masonry, fire protection walls, subfloors and road construction.

AI-generated
Offering

Products & services

Industry:Building Construction
✓ Offered7
Building construction
In-situ concrete construction, additions and alterations, replacement buildings for residential and commercial properties as well as entire building complexes.
Masonry work
Exposed masonry, fire-protection walls and floor underlays as part of new builds, alterations and renovations.
Renovations
Conversions and extensions, repairs and renovations of properties, including adaptations and renewal of existing buildings.
Alterations
Complete alterations, attic conversion with opening of the screed, extensions and structural strengthening according to individual requirements.
Agricultural buildings
Pigsty, outdoor run, slurry pit and farm buildings for agricultural construction projects.
Planning and construction of building projects
Planning phase and construction of entire building complexes, traffic routes and earthworks.
Traffic routes and earthworks
Construction of traffic routes and earthworks as part of the service offering in the building and civil engineering environment.
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4.1/5

Roos Josef & Erich Bau GmbH

Trust & reputation

ranQ Trust Score of Roos Josef & Erich Bau GmbH: 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.

Roos Josef & Erich Bau GmbH 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%
Roos Josef & Erich Bau GmbH scores 83.0 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%
Roos Josef & Erich Bau GmbH 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%
Roos Josef & Erich Bau GmbH scores 7.4 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 35.7.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Roos Josef & Erich Bau GmbH 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.

Knowledge

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Location

Hier entsteht die Karte
Grossmatt 66
6245 Ebersecken

At a glance

Legal form
Limited Liability Company
UID
CHE-112.832.166
Founded
2006 · 20 years
Last commercial register change
January 16, 2020
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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