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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEtzikenSchumi's Bau GmbH
Schumi's Bau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Schumi's Bau GmbH is a construction company offering bathroom renovations, painting, plastering, tiling and facade renovation. The company carries out renovation and remodeling projects as a full-service provider and provides a single point of contact for clients.

AI-generated
Offering

Products & services

✓ Offered6
Bathroom renovations
Bathroom renovations, conversions and refurbishments with a short construction period; all from one source, from the first contact to project completion.
Painting work
Painting work as part of conversions and renovations, combined with other interior finishing work for interior and wet rooms.
Tiling work
Tiling work for bathroom conversions and renovations, including work on floors and wall coverings.
Facade renovations
Facade renovations on existing buildings, supplemented by other conversions and refurbishment work on request.
Plastering work
Plastering work for conversions and renovations, carried out together with painting and tiling work.
Other work on request
Other building and conversion work on request, as supplementary services alongside the core work related to renovation and interior fit-out.
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4.2/5

Schumi's Bau GmbH

Trust & reputation

ranQ Trust Score of Schumi's Bau GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

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Data basis 96% · As of October 2026

Schumi's Bau GmbH scores 72.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.79.424%
  • 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.52.910%
  • 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.78.08%
Schumi's 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.
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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%
Schumi's 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%
Schumi's Bau GmbH scores 13.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.13.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Schumi's Bau GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 7 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 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Mettlenstrasse 15
4554 Etziken

At a glance

Legal form
Limited Liability Company
UID
CHE-219.400.839
Founded
2011 · 15 years
Last commercial register change
July 14, 2016
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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