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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesWinterthurTrost Maurerarbeiten Umbauten GmbH
Trost Maurerarbeiten Umbauten GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Trost Maurerarbeiten Umbauten GmbH is a construction and trades company offering masonry work, conversions, renovations and moisture remediation. Its services also include demolition, plastering, tiling and slab/paving work, as well as construction site management.

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Products & services

Industry:Specialized Construction Activities
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3.9/5

Trost Maurerarbeiten Umbauten GmbH

✓ Offered6
Masonry work / Customer mason / Renovation
Openings, wall construction, concrete work and adjustments in existing buildings for conversions and renovations; professional masonry work for windows, doors and structural changes.
Tiling work / Grout and joint repair
Bathroom tiles, kitchen tiles and floor tiles as well as grout and joint repair for residential and commercial premises; precise workmanship for functional, long-lasting surfaces.
Bathroom - Renovation / Refurbishment
Complete bathroom renovations and refurbishments, including conversion adjustments and concrete and masonry work; focused on renovation, room layout and adaptations in existing buildings.
Concrete core drilling
Precision core drilling and concrete wall openings for installations, doors, windows and structural adjustments; also in concrete, reinforced concrete and masonry.
Plastering work / Acoustic & thermal insulation
Acoustic insulation, thermal insulation, interior plastering work and façade works to improve energy efficiency and living comfort; carried out using plastering work.
Dust-free work
Dust-free openings, clean concrete work and wall construction without dust; low-dust construction with protection of the rooms and minimal dust exposure.
Trust & reputation

ranQ Trust Score of Trost Maurerarbeiten Umbauten GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 54% · As of October 2026

Trost Maurerarbeiten Umbauten GmbH 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.
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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%
Trost Maurerarbeiten Umbauten GmbH scores 65.0 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.58.012%
  • 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%
Trost Maurerarbeiten Umbauten 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%
Trost Maurerarbeiten Umbauten GmbH scores 3.1 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 35.3.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Trost Maurerarbeiten Umbauten GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Frauenfelderstrasse 36
8400 Winterthur

At a glance

Legal form
Limited Liability Company
UID
CHE-431.417.438
Founded
2022 · 4 years
Last commercial register change
June 12, 2024
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.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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