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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsUsterDie Umbauleiter AG
Die Umbauleiter AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company 'Die Umbauleiter AG' is the planning, management and execution of renovation and refurbishment projects in the construction industry, particularly for private and public building owners. This includes the creation of individual cost estimates, coordination of trades, renovation planning, management and execution, as well as the refurbishment of existing buildings.

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Products & services

Industry:Architecture FirmsConstruction & Project Management
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Die Umbauleiter AG

✓ Offered3
Renovation planning
Development of conversion strategies, project and feasibility studies, cost estimates, owner advising and representation, as well as planning of energy-efficient refurbishments and funding programmes.
Renovation supervision
Construction process management for conversions, conversion organization and coordination, tender procedures, site supervision, schedule control, cost reporting, quality assurance, defect management and owner representation.
Renovations
Energy-efficient renovations, comprehensive renovations, major overhauls, cost-optimised renovations, barrier-free construction as well as site supervision, schedule control, cost calculation and defect management.
Trust & reputation

ranQ Trust Score of Die Umbauleiter AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Die Umbauleiter AG scores 72.7 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.80.624%
  • 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.55.910%
  • 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.70.08%
Die Umbauleiter AG scores 64.1 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.50.012%
  • 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%
Die Umbauleiter AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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%
Die Umbauleiter AG scores 1.7 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 35.1.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Die Umbauleiter AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 8 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 8 reviews across all connected sources

Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Wermatswilerstrasse 8
8610 Uster
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
09:00 - 12:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-136.496.998
Founded
2023 · 3 years
Last commercial register change
February 2, 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.
100.0
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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