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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationWinterthurwiwü GmbH Elektro- und Telefonanlagen
wiwü GmbH Elektro- und Telefonanlagen Logo
Verified· 3 sourcesTrust Score
Summary

About the company

wiwü GmbH Elektro- und Telefonanlagen performs electrical service and repair work and electrical installations for new builds and renovations, and offers e‑mobility solutions, distribution boards, building automation (KNX), telephone systems (PBX), network installations, lighting, planning and periodic inspections.

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Products & services

Industry:Electrical Planning & Installation
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wiwü GmbH Elektro- und Telefonanlagen

Electrical installations
Electrical installations for new builds and renovations, kitchens, bathrooms and office renovations; adjustments to existing installations, maintenance, repairs and rectification of defect reports.
Service and repair work
Electrical service work for residential, commercial and industrial buildings; fault finding, troubleshooting, repair and replacement of switches, sockets and luminaires, installation of lighting fixtures and charging stations.
Low-voltage installations
Low-voltage systems for intercom systems, VoIP solutions, communications networking, network installations and KNX installations.
E-mobility
Charging solutions for home, company parking lots as well as underground garages and outdoor parking spaces with charging management; installation of charging infrastructure for individual and multiple parking spaces.
Lighting
Lighting concepts and professional execution for apartments, houses, commercial and office spaces; lighting controls as well as conversion to LED technology.
Building automation
Building automation for single-family homes with KNX, Wiser by Feller and Casambi; control of lighting, shading and temperature for comfortable and flexible electrical installations.
Electrical distribution panels
Replacement of outdated electrical distribution panels with modern, standards-compliant systems; analysis, planning, construction and implementation with minimal downtime.
Defect rectification
Rectification of defects following periodic inspections based on defect reports; work in accordance with standards and direct reporting to the inspection body.
Consulting/Planning
Consulting and planning for repair, conversions and new-build projects; individual implementation, transparent planning, scheduling and practical recommendations.
Trust & reputation

ranQ Trust Score of wiwü GmbH Elektro- und Telefonanlagen: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

wiwü GmbH Elektro- und Telefonanlagen scores 83.4 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.79.424%
  • 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.83.810%
  • 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.95.08%
wiwü GmbH Elektro- und Telefonanlagen 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%
wiwü GmbH Elektro- und Telefonanlagen 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%
wiwü GmbH Elektro- und Telefonanlagen scores 62.9 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 35.62.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

wiwü GmbH Elektro- und Telefonanlagen reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 26 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
4.7
of 5

Aggregated from 26 reviews across all connected sources

Sources
GGoogle4.726
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Wieshofstrasse 36
8408 Winterthur
Opening hours
Mon
07:00 - 12:00, 13:15 - 17:00
Tue
07:00 - 12:00, 13:15 - 17:00
Wed
07:00 - 12:00, 13:15 - 17:00
Thu
07:00 - 12:00, 13:15 - 17:00
Fri
07:00 - 12:00, 13:15 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.570.178
Founded
2002 · 24 years
Last commercial register change
November 11, 2009
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.88.06%
  • 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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