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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionEffretikonJano Bau Asani
Jano Bau Asani Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Jano Bau is the execution of renovation and conversion projects in the residential and commercial construction sector, including individual planning and consulting to meet customer needs and deliver high-quality results.

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Offering

Products & services

Industry:Building ConstructionGeneral Contractors
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3.6/5

Jano Bau Asani

Site Preparation
✓ Offered12
Conversion and renovation work
Conversion and renovation services for residential and commercial construction, including remediation, modernisation and tailor-made planning.
Demolition and dismantling work
Demolition and dismantling work as part of site preparation and conversion projects.
Waterproofing work
Waterproofing work for structures and renovations.
Rendering and plastering work
Rendering and plastering work for interior and exterior surfaces.
Drilling and milling work
Drilling and milling work, including core drilling.
Concrete and reinforced concrete work
Concrete and reinforced concrete work for new-build, conversion and remediation projects.
Subfloor substrates
Installation of subfloor substrates for conversion and renovation projects.
Lightweight walls and ceilings
Lightweight walls and ceilings for conversions and interior fit-out.
Insulation and energy-related renovations
Insulation and energy-related renovations to improve the building envelope and energy efficiency.
Water damage remediation
Remediation of water damage as part of conversion and renovation work.
Conversions, extensions and new builds
Conversions, extensions and new builds for residential and commercial properties.
Bathroom conversions
Bathroom conversions as part of renovations and modernisations.
Trust & reputation

ranQ Trust Score of Jano Bau Asani: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

Jano Bau Asani scores 52.7 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.68.224%
  • 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.17.610%
  • 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.50.08%
Jano Bau Asani scores 57.0 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.50.012%
  • 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%
Jano Bau Asani scores 85.0 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).85.022%
Jano Bau Asani 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%
Qualifications+0.00

Jano Bau Asani reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Töpferweg 3
8307 Effretikon
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-266.416.935
Founded
2023 · 3 years
Last commercial register change
March 21, 2023
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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