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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationGrand-LancyJ. Kappeler SA
J. Kappeler SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of J. Kappeler S.A. is the planning, installation and maintenance of electrical systems, including: electrical installations (high and low current), home automation and building automation, security systems (person and property security), IT networks, photovoltaic systems and charging stations for electric vehicles, measurement of electromagnetic pollution, and maintenance and repair of electrical systems. The company offers these services to various customers, including businesses, administrations and private households, in the Geneva region.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered10
BIM design office
Integrated design office for functional analysis, calculation notes, electrical schematics, lighting studies and execution plans in AutoCAD, CANECO BIM 3D and Revit.
High-voltage electrical installations
High-voltage power installations for commercial buildings and industrial sites, including HTA substations and switchgear cells, electrical cabinets, cabling, lighting, distribution and HVAC.
Property security
Access control, intrusion detection and video surveillance to secure buildings, with badge-based technologies, codes, biometrics and license plate recognition.
People security
Fire safety systems for public-access buildings (ERP) and other premises, including fire alarm, smoke detectors, sirens, strobe lights and smoke venting hatches.
IT networks
Installation of IT networks and fiber optics, IP telephony, patch bays, wireless networks, server rooms and video conferencing or room booking systems.
Home automation
Installation of home automation and security technologies, remote control of systems, management of openings and temperature, energy regulation and KNX integration.
EV charging stations
Design and installation of charging stations and outlets for businesses, condominiums, private or public parking lots, with supervision, RFID badge, energy metering and remote maintenance.
Photovoltaic solar panels
Advisory, installation and connection of photovoltaic solar panels, with feasibility study, customized solution, performance testing and maintenance of the installations.
Electrical maintenance and troubleshooting
On-call service, breakdown assistance outside of contracts, maintenance contracts, checks and annual inspections, remote monitoring and interventions on high-voltage and low-voltage systems.
Measurement of electromagnetic pollution
On-site measurements, tests and diagnosis of electromagnetic fields, with a prevention plan and protection solutions, such as alternatives to wireless or shielded screens.
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4.1/5

J. Kappeler SA

Trust & reputation

ranQ Trust Score of J. Kappeler SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

J. Kappeler SA scores 55.3 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.44.424%
  • 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.49.510%
  • 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%
J. Kappeler SA scores 92.3 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.82.07%
J. Kappeler SA 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%
J. Kappeler SA scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

J. Kappeler SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.2 out of 5 stars from 6 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
3.2
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle3.26
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route des Jeunes 59
1212 Grand-Lancy
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 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-108.025.530
Founded
1982 · 44 years
Last commercial register change
April 15, 2024
Employees
21 to 50
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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