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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceZollbrückBSA - Rosati Bau Spezialitäten Atelier
BSA - Rosati Bau Spezialitäten Atelier Logo
Verified· 2 sourcesTrust Score
Summary

About the company

BSA - Rosati Bau Spezialitäten Atelier carries out restorations of historic buildings, focusing on masonry, plastering and lime fresco work using pure lime mortar. Services include fine plasters, stucco work, stucco smoothing and stucco marble, as well as project management and supervision of restoration projects.

AI-generated
Offering

Products & services

Industry:Building Maintenance
✓ Offered5
Preservation and restoration
Preservation protects the building fabric through preventive and urgent interventions; restoration restores earlier conditions. Including written, photographic and planning documentation as well as digital mapping on request.
Building survey
On-site investigation of historic objects to identify construction phases, materials, techniques, condition and causes of damage; with a detailed survey report as a basis for further measures.
Construction supervision and project management
Management and supervision of projects in preservation, restoration and renovation in listed historic buildings; also support for individual steps within the construction project.
Monitoring
Regular monitoring of damage through visual inspections or moisture measurements; to assess the development, prevent major damage and derive suitable measures.
Concept
Development of a concept with a precise description of the measures and method of execution; as a tool for those involved, supplemented if necessary with material samples on site.
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4.1/5

BSA - Rosati Bau Spezialitäten Atelier

Trust & reputation

ranQ Trust Score of BSA - Rosati Bau Spezialitäten Atelier: 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.

BSA - Rosati Bau Spezialitäten Atelier 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%
BSA - Rosati Bau Spezialitäten Atelier scores 78.5 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%
BSA - Rosati Bau Spezialitäten Atelier 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%
BSA - Rosati Bau Spezialitäten Atelier scores 6.6 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 35.6.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BSA - Rosati Bau Spezialitäten Atelier 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

Obereiweg 1
3436 Zollbrück

At a glance

Legal form
Sole proprietorship
UID
CHE-112.586.180
Founded
2005 · 21 years
Last commercial register change
December 24, 2009
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.67.06%
  • 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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