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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationChurSommerau Elektro MM AG, Zweigniederlassung Chur
Sommerau Elektro MM AG, Zweigniederlassung Chur Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Sommerau Elektro MM AG, Zweigniederlassung Chur provides electrical installations, photovoltaic systems, EV charging stations, and smart‑home and lighting solutions. The branch also sells, installs and services household appliances (partners include Miele, Electrolux, V‑Zug), performs safety inspections and offers 24/7 emergency service and maintenance contracts.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered10
Electrical installations
Planning and execution of electrical installations in residential and commercial properties, from consultation through installation to maintenance and repair.
Photovoltaic solar systems
Planning, installation and maintenance of photovoltaic systems for harnessing solar energy for homes and businesses.
EV charging stations
Planning and installation of charging solutions for electric vehicles in private households, multi-family buildings and commercial properties.
Smart Home and automations
Intelligent lighting, building automation and networked solutions for more comfort, safety and efficiency in home and business.
Household appliances & service
Sale of household appliances as well as delivery, installation, maintenance, repair and disposal of old units; including advice and replacement appliances.
Lighting
Tailored lighting solutions and lighting concepts for residential and commercial spaces, from functional to decorative lighting.
Security systems
Alarm systems, fire detectors and other protection solutions for home and businesses.
Networks & telephone systems
IT and communication solutions for private and business customers, including setup of networks and telephone systems.
Inspections & safety certificates
Legally required inspections, safety tests and safety certificates for electrical installations.
Maintenance & service contracts
Regular maintenance and service contracts for electrical installations, photovoltaic systems and Smart Home systems to prevent breakdowns.
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3.8/5

Sommerau Elektro MM AG, Zweigniederlassung Chur

Trust & reputation

ranQ Trust Score of Sommerau Elektro MM AG, Zweigniederlassung Chur: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Sommerau Elektro MM AG, Zweigniederlassung Chur scores 57.2 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.62.524%
  • 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.27.910%
  • 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.78.08%
Sommerau Elektro MM AG, Zweigniederlassung Chur scores 73.1 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.83.012%
  • 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.55.07%
Sommerau Elektro MM AG, Zweigniederlassung Chur 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%
Sommerau Elektro MM AG, Zweigniederlassung Chur scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sommerau Elektro MM AG, Zweigniederlassung Chur reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 2 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
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle42
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Kasernenstrasse 95
7000 Chur
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-361.785.662
Founded
2017 · 9 years
Last commercial register change
October 2, 2017
Employees
1 to 10
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.76.06%
  • 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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