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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringWinterthurWechselraum GmbH
Wechselraum GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is specialized construction management, particularly the implementation of specialized construction management, quality management, schedule tracking, cost management, and leadership and coordination skills in construction projects. The company also offers additional services such as mediation in planning and communication processes, owner support, monitoring of specialized construction management, control of construction deadlines, and evaluation of costs and standards.

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Offering

Products & services

Industry:Technical Consulting & Engineering
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4.1/5

Wechselraum GmbH

Construction & Project Management
✓ Offered5
Specialist construction management per SIA 108
Individual offering of basic services, additional services and support for the local site management; with or without coordination of external trades, as a link to the overall management.
Refrigeration technology design
Design of commercial refrigeration, industrial refrigeration, air-conditioning refrigeration and heat pump technology; including solutions with central refrigeration generation, GA connection and a sustainable refrigerant strategy.
Quality assurance for planning and construction
Monitoring of specialist site management, control of construction schedules, review of organisation and staffing structures, plan checks, as well as assessment of costs, standards and usage agreements.
Client support
Support throughout planning and communication processes, assistance in finding specialist planners, handling of additional costs and requests for site management services, as well as risk assessments when purchasing real estate.
Testing and commissioning
Execution of integrated tests, organisation and completion of comprehensive tests in accordance with VKF, as well as specification of schedules and organisational processes for acceptance.
Trust & reputation

ranQ Trust Score of Wechselraum GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Wechselraum GmbH scores 61.4 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.76.724%
  • 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.45.610%
  • 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%
Wechselraum GmbH scores 86.7 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.100.012%
  • 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.70.07%
Wechselraum 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%
Wechselraum GmbH scores 48.6 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 35.48.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wechselraum GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Albert-Einstein-Strasse 15
8404 Winterthur
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-114.119.889
Founded
2008 · 18 years
Last commercial register change
October 30, 2025
Employees
11 to 20
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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