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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,110 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationGommiswaldHärz AG
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Verified· 3 sources

Härz AG

Summary

About the company

The core activity of Härz AG includes the planning, execution and maintenance of electrical installations, building automation, renewable energies, security technology, IT and telematics for private, commercial and industrial customers throughout Switzerland. This also includes specific services such as photovoltaics, electromobility, smart home, emergency power supply, switchgear, laser engraving, garden lighting, building earthing and device testing.

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Offering

Products & services

Industry:Electrical Planning & Installation
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Solar & Photovoltaics
✓ Offered12
Electrical Installations
Electrical installations for private and commercial customers, including power cables, power connections, lighting, low-voltage installations, switchgear, earthing and service.
Solar PV & Energy Solutions
Advising, planning and implementing photovoltaic systems, including roof-mounted, integrated, flat-roof, industrial, façade and off-grid systems, as well as power storage, emergency power storage, thermal storage and energy consulting.
PV Maintenance and Repairs
Inspecting, cleaning, monitoring and repairing photovoltaic systems, including thermography, system check, maintenance, replacement of defective modules, care of roof greening and snow retention systems.
Electric Mobility
Turnkey electric mobility solutions for single-family homes, multi-family homes, commercial properties and public areas, from planning and installation to operation and service.
Bidirectional EV Charging
Intelligent charging systems for bidirectional charging in single-family homes, multi-family homes, as well as for SMEs and institutions.
Building Automation
End-to-end building automation solutions with KNX, DALI, EnOcean, visualisation, ModBus, M-Bus, remote maintenance, energy management, load management, door intercom systems and multimedia.
Smart Home
Smart home solutions for networked electrical installations, with control of lighting, solar shading, security, heating, ventilation, energy management and multimedia.
Equipment Testing, Rental Service & Training
Equipment testing, electrical inspections, repairs, rental service for test devices, and training for independent equipment testing.
Uninterruptible Power Supply (UPS)
Sizing and installing UPS systems and emergency power generators for single-family homes, multi-family homes, as well as commercial and industrial buildings.
Switchgear
Planning, building and commissioning switch and control systems for residential, commercial and industrial construction, as well as providing service and maintenance.
Security Technology
Tailor-made security systems including burglary and alarm reporting systems, access control, fire detection systems, smoke and heat exhaust, safety lighting, video surveillance and time recording.
IT & Telematics
Communication and networking solutions with communication cabling, mobile communication, switching and routing, IT security, VoIP, UCC, plus consulting, service and maintenance.
Reviews

Aggregated rating

Aggregated rating
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
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★TrustpilotSoon
PProvenExpertSoon

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Location

Ernetschwilerstrasse 23
8737 Gommiswald
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-293.859.703
Founded
2020 · 6 years
Last commercial register change
December 9, 2025
Employees
11 to 20

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