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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesOther Service IndustriesZurichBauStern Kozlovskyi
BauStern Kozlovskyi Logo
Verified· 2 sourcesTrust Score
Summary

About the company

BauStern Kozlovskyi provides construction and renovation services from a single source, including renovation, sanitary work, new builds and conversions, demolition, tiling and parquet work, and painting. The company also serves property managers, general contractors, and commercial and retail fit-out projects.

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Offering

Products & services

Industry:Other Service IndustriesGeneral Contractors
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BauStern Kozlovskyi

Painting & Plastering
Plumbing & Building Services
✓ Offered10
Renovation
Vacant-apartment renovation, object bathrooms and fit-out of commercial space; painting, flooring, bathroom, kitchen and minor repair work in the construction schedule.
Plumbing and sanitary work
Series and object bathrooms, water installations, boilers and maintenance; also fault repairs and pressure and leak tests with protocol.
New construction and remodeling
Layout changes, extensions, attic build-outs and commercial fit-out; planning, coordination and execution through to turnkey handover.
Demolition and dismantling
Strip-out, selective dismantling and disposal; source-separated, with weighbridge slip and evidence for site acceptance.
Tiling and parquet work
Tiles for bathrooms and floors, bonded waterproofing, plus parquet and floor coverings; delivered as series work or as a single trade.
Painting work
Interior and façade painting, wallpapering and vacant-apartment painting; including filling, priming, painting and tidy handover.
Planning and project design
Survey, floor plan, 3D visualisation, material concept and fixed-price quotation; planning and execution from one source through handover.
Construction services for property managers
Vacant apartments, ongoing maintenance and refurbishments across a portfolio; framework agreement, fixed contact person and documented handovers for owners and tenants.
Subcontracting for general contractors
Single trades or trade packages for general contractors; demolition, plumbing, dry construction, tiling and painting work with documentation for acceptance.
Fit-out for commercial and retail spaces
Refurbishment and fit-out of office, practice, salon and retail spaces; staged, outside opening hours and handed over for the launch date.
Trust & reputation

ranQ Trust Score of BauStern Kozlovskyi

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Website authority, Media authority

Data basis 50% · As of October 2026

BauStern Kozlovskyi 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%
BauStern Kozlovskyi scores 35.6 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.0.012%
  • 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%
BauStern Kozlovskyi 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%
BauStern Kozlovskyi has no value in the Visibility area of the ranQ Trust Score because no data is available. The area carries 8% 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
  • Website authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 50%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Website authority, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Jakob-Fügli-Strasse 18
8048 Zurich

At a glance

Legal form
Sole proprietorship
UID
CHE-485.600.736
Founded
2026 · 0 years
Last commercial register change
September 25, 2026
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.
67.0
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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