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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior fit-outAllschwilZaric Umbau GmbH
Zaric Umbau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Zaric Umbau GmbH carries out building conversions and renovations, including plastering, painting, drywall, façade work and mould treatment. It also installs and renovates flooring such as parquet, laminate and tiles.

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Service area

Offering

Products & services

Industry:Interior fit-outRenovation
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3.7/5

Zaric Umbau GmbH

Painter
✓ Offered7
Conversion and renovation works
Conversion and renovation works for residential and commercial premises; end-to-end craftsmanship with gypsum, painting, façade, dry lining and flooring work.
Gypsum works
Gypsum works for interior fit-out, dry lining and ceiling design; with functions for room climate, insulation, fire and sound protection.
Façade works
Design and renovation of façades; including preparation and finishing work as well as thermal insulation and moisture protection.
Dry lining
Dry lining for new room layouts, creating rooms and shaping ceilings; with improved fire and sound protection.
Painting work
Painting work with surface preparation, masking, protective films, colour coats and advice on colour selection; also after mould treatments.
Flooring
Laying and renovating wooden floors and tiles; including sanding, sealing, oiling, repairs and individual advice.
Mould treatment
Professional mould treatments to remove mould spores; as an additional service within conversion and renovation works.
Trust & reputation

ranQ Trust Score of Zaric Umbau GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of November 2026

Zaric Umbau GmbH scores 49.8 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.35.08%
Zaric Umbau GmbH scores 75.7 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.83.012%
  • 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%
Zaric Umbau 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%
Zaric Umbau GmbH scores 3.4 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 35.3.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Zaric Umbau GmbH reaches a ranQ Trust Score of 3.7 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 November 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.

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Location

Spitzwaldstrasse 8
4123 Allschwil
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-368.294.632
Founded
2017 · 9 years
Last commercial register change
March 23, 2017
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BLAllschwil
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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