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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationZurichWalter Pfäffli AG
Walter Pfäffli AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Walter Pfäffli AG is an electrical engineering firm that designs, installs and maintains electrical systems, lighting and multimedia solutions, door intercoms, alarm and telecommunications systems. It also provides photovoltaic planning, charging solutions for electric mobility, electrosmog measurements, periodic inspections and a 24/7 emergency service.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
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Walter Pfäffli AG

✓ Offered10
Electrical Installations
Electrical installations in new builds, renovations and service jobs, including lighting installations, lighting controls, switch and socket extensions, inspections and rectification of faults.
New Build and Renovation Planning
New build and renovation planning with CAD plans, engineering, project management and coordination of electrical, IT, telephone and TV systems.
Lighting
LED lighting, retrofitting of existing systems, planning of indoor and outdoor lighting, as well as ordering and advice for luminaires and light sources.
Electrosmog Measurement and Electro-biology
Measurements of electric, electromagnetic and high-frequency fields, as well as advice on reduction, shielding and other measures.
Door Intercom Systems
Classic intercom systems, video intercom stations, smartphone-capable solutions and integration into mail-box combinations.
Multimedia Installations
Multimedia installations for audio, video and computer applications, including home cinema, multiroom systems, network and WLAN.
Telecommunications
Telephone connections, removal of Economyline and ISDN to ALLIP or VPBX telephony, TVA systems, as well as advice and programming of telephone devices.
Alarm Systems
Alarm systems with radio or wired technology, certified installations, panic buttons, safe security devices, silent alarms, as well as operation via chip, fingerprint, app or code.
Emergency Service
On-call duty outside working hours for emergencies, reachable 24/7, with rapid fault rectification and safeguarding of installations in operation.
Energy Technology
Photovoltaic systems, consumption-optimized end devices, modern storage solutions, energy management systems and energy-efficient lighting.
Trust & reputation

ranQ Trust Score of Walter Pfäffli AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Walter Pfäffli AG scores 67.6 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.71.724%
  • 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.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%
Walter Pfäffli AG scores 89.3 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%
Walter Pfäffli AG scores 83.3 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).83.322%
Walter Pfäffli AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Walter Pfäffli AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 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
4.6
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle4.68
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Scheuchzerstrasse 164
8057 Zurich
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.813.614
Founded
1979 · 47 years
Last commercial register change
January 5, 2023
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.
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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