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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationRömerswil LuStuder Erwin Elektro AG
Studer Erwin Elektro AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Maréchaux (Studer Erwin Elektro AG) encompasses the following areas: Electrical installation, Service and maintenance of electrical systems, Telematics, IT services, Security, Building automation, Energy management, Photovoltaics, and Electric mobility. Additionally, the company offers a 24-hour emergency and repair service and operates a retail store for electrical products.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered10
Electrical installation
Electrical installations for new builds and renovations, private properties as well as commercial and industrial facilities; planning, implementation, maintenance, service and lighting concepts.
Service and maintenance
Service and maintenance of electrical systems, regular maintenance and installation checks, extensions, upkeep, upgrades as well as 24-hour on-call and repair service.
Telematics
Telematics solutions including installation of traditional telephone systems, planning and support for web-based systems, VOIP, Swisscom home connection, tariff consulting as well as training.
IT service
IT service for home and company networks, VOIP, cabling and WLAN solutions, Ethernet, UKV, TV/SAT/cable systems, as well as comprehensive cloud and network concepts.
Security
Security solutions with access control, alarm systems, intrusion alarm systems, video surveillance, lightning protection, as well as customer counting and merchandise protection.
Building automation
Building automation for smart home and smart building, networked infrastructure, control of heating, ventilation, air conditioning, lighting, shutters and locking systems, as well as system maintenance.
Photovoltaics
Photovoltaic systems with consultation, planning, installation, maintenance, servicing, monitoring, grant processing, financing, project management and safety checks.
Energy management
Energy management for buildings and commercial properties, controlling energy flows, using solar and thermal power, connecting heat pumps, charging stations and washing machines.
E-mobility
Charging solutions for electric vehicles, planning and installation of charging stations for a garage, home or commercial premises, also for multiple e-charging stations.
Retail store
Sale of electrical items in the retail shop, from hair dryers to LED bulbs, as well as advice on freezers, washing machines, ovens and cookers.
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4.2/5

Studer Erwin Elektro AG

Trust & reputation

ranQ Trust Score of Studer Erwin Elektro AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Studer Erwin Elektro AG scores 69.5 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.78.08%
Studer Erwin Elektro 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%
Studer Erwin Elektro AG 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%
Studer Erwin Elektro AG scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Studer Erwin Elektro AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very 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.

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Location

Neudorfstrasse 2
6027 Römerswil Lu
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 11:30
Wed
Closed
Thu
08:00 - 11:30
Fri
Closed
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.236.366
Founded
1994 · 32 years
Last commercial register change
August 24, 2018
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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