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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsTrimbachZplus Architektur & Bauleitung GmbH
Zplus Architektur & Bauleitung GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Zplus Architektur & Bauleitung GmbH provides architectural services, project management and construction supervision for new builds, conversions and renovations. The company also supports construction projects from planning through execution and coordinates window and door installations.

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Products & services

Industry:General Contractors
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4.2/5

Zplus Architektur & Bauleitung GmbH

4
Architecture and construction management
Architecture and project management, project and construction management, supervision of construction projects from the beginning to completion, for residential and commercial buildings.
Windows
Custom-made windows for new builds, renovations and conversions, in various sizes, designs and finishes; uPVC windows, uPVC-aluminium windows and wood-aluminium windows, including installation.
Doors
Front doors and custom-made doors, in various models, shapes and colours; with options for side panels, transom lights, handles and colour, including configuration and showroom display.
General contracting
General contracting for owner-occupied homes and residential buildings, with clearly defined work processes, a structured approach and support from the initial consultation through after completion.
Trust & reputation

ranQ Trust Score of Zplus Architektur & Bauleitung GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Zplus Architektur & Bauleitung GmbH scores 82.3 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.81.924%
  • 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.78.610%
  • 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.88.08%
Zplus Architektur & Bauleitung GmbH scores 67.8 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.64.612%
  • 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%
Zplus Architektur & Bauleitung GmbH scores 85.0 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).85.022%
Zplus Architektur & Bauleitung GmbH scores 34.3 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 35.34.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Zplus Architektur & Bauleitung GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 21 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
4.8
of 5

Aggregated from 21 reviews across all connected sources

Sources
GGoogle4.821
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Winznauerstrasse 101
4632 Trimbach
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-445.397.144
Founded
2021 · 5 years
Last commercial register change
February 13, 2026
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%
    • Full methodology

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