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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction managerZurichUmbau-Allrounder GmbH
Umbau-Allrounder GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Umbau-Allrounder GmbH manages construction projects and carries out building, remodelling and renovation work for residential and commercial spaces. Its services include consulting, masonry and plastering work, and floor installation.

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Presence

Service area

Offering

Products & services

Industry:Construction managerGeneral contractor
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3.9/5

Umbau-Allrounder GmbH

✓ Offered6
Renovations
Renovations of residential and commercial spaces, with work to renew rooms from floor to ceiling.
Construction project management
Coordination of construction projects from planning to completion, including organizing the workflow and ensuring work is carried out on schedule.
Renovation and refurbishment consultancy
Advice on refurbishment and renovation projects, with guidance on selecting suitable materials, designs and solutions for specific needs.
Masonry work
Masonry work for construction projects, from foundation work through finishing, tailored to the scope of each project.
Plastering work
Plastering work on wall and ceiling surfaces, including new finishes and repairs as part of refurbishment and renovation projects.
Floor installation
Installation of parquet, laminate, tiles and vinyl flooring in a range of spaces.
Trust & reputation

ranQ Trust Score of Umbau-Allrounder GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of November 2026

Umbau-Allrounder GmbH scores 59.3 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.60.724%
  • 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.40.910%
  • 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%
Umbau-Allrounder GmbH scores 74.1 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.79.212%
  • 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%
Umbau-Allrounder GmbH scores 86.7 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).86.722%
Umbau-Allrounder GmbH scores 2.3 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 35.2.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Umbau-Allrounder GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 4 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle44
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Friedackerstrasse 37
8050 Zurich
Opening hours
Mon
08:00 - 17:30
Tue
08:00 - 17:30
Wed
08:00 - 17:30
Thu
08:00 - 17:30
Fri
08:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-195.272.916
Founded
2018 · 8 years
Last commercial register change
September 21, 2018
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHZurich
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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