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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceAarau RohrUmbauten Sinisi
Umbauten Sinisi Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Umbauten Sinisi encompasses a wide range of services in the construction sector, particularly: building renovations and conversions, interior design and renovation, gardening and maintenance work, plastering, painting and masonry work, as well as specialized work with plates and other materials. Additionally, the company offers consulting and planning services for construction projects and also performs smaller repair and maintenance work.

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Offering

Products & services

Industry:Building MaintenanceHorticulture & Landscaping
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Umbauten Sinisi

Interior Construction
Site Preparation
Flooring & Tiling
Masonry Work
Painting & Plastering
Roofing
✓ Offered8
Conversions and renovations
Conversions, renovations and refurbishments for existing buildings, extensions, new-build/conversions, apartment renovations, kitchen and bathroom conversions as well as maintenance work.
Plastering work
Rendering, coatings, ceiling and wall systems, lightweight partition walls, partition walls, insulation work and sound and fire protection.
Painting work
Wall and ceiling coatings, exterior painting, painting or spraying doors and windows, wallpapering, mold treatment and graffiti removal.
Masonry work
Demolition and breaking-out work, wall openings, core drilling, small formwork, foundation and concrete work, masonry work for clients and repairs after water damage.
Tiling work
Wall and floor coverings made of ceramic, natural stone and engineered stone, seamless floor and wall coverings, waterproofing for wet areas and balconies, and silicone work.
Interior fit-out
Drywall construction, wall cladding, internal insulation, installation of windows and doors, carpentry and joinery work, and floor coverings such as parquet, laminate, cork and vinyl.
Garden design and maintenance
Garden design, tree care, earthworks and excavation, paths, patios, wooden terraces, natural stone walls, sowing of lawn seed, screening and upkeep and cleaning.
Building caretaking and maintenance
General cleaning, construction-site cleaning, façade and stone cleaning, roof service, coordination of tradespeople, technical maintenance, customer service and transport/moves.
Trust & reputation

ranQ Trust Score of Umbauten Sinisi

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, Media authority

Data basis 54% · As of October 2026

Umbauten Sinisi 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%
Umbauten Sinisi scores 65.7 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.70.212%
  • 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%
Umbauten Sinisi 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%
Umbauten Sinisi scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

Knowledge

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Location

Hardstrasse 12
5032 Aarau Rohr

At a glance

Legal form
Sole proprietorship
UID
CHE-295.190.555
Founded
2020 · 6 years
Last commercial register change
March 14, 2025
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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