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

About the company

The core activity of Rolf Gerber AG is the provision of services in the field of electrical engineering, particularly in the areas of: high-voltage installations, communication technology, building automation, security technology, photovoltaics, e-mobility, and repair and maintenance of household appliances. The company also offers planning and project planning services and organizes trade fairs and events.

AI-generated
Offering

Products & services

Industry:Electrical Planning & Installation
✓ Offered12
Planning / Project design
Planning and project design for low- and extra-low voltage installations; carrying out project design tasks for renovations, conversions, and other electrical systems.
Electrical installations
Low- and extra-low voltage electrical installations for renovations, conversions, and new builds; including modern installation techniques and implementation in residential, office, and commercial environments.
Lighting
Solutions for lighting problems in residential and office areas; lighting fixtures for room design, enhancement, and efficient lighting technology.
Repairs / Service
Troubleshooting electrical faults and repairing household appliances in the kitchen and laundry area; fast and reliable service work on systems.
Repair centre / Sales
Repair of luminaires, small appliances and devices at the repair centre; sales of household appliances, light sources, fuses, starters, and batteries.
Periodic inspections / Safety certificate
Periodic inspections of electrical installations and submission of the safety certificate when requested by the utility company or in case of change of ownership.
ICT solutions
Information and communications technology with hardware, software, internet and telecommunications solutions; implementation with qualified partner companies for tailor-made solutions.
Building automation
Smart home and building automation with KNX, Loxone and other systems; connections for intelligent control of homes and buildings.
Security
Security solutions for homes, apartments and businesses with intercom systems, video surveillance, motion detectors, as well as burglar alarm, hazard alarm and fire detection systems.
Photovoltaics
Installation of solar and photovoltaic systems in cooperation with partner companies; systems tailored to customer needs.
E-mobility
Connection of electric vehicles with intelligent charging controls and billing systems; tailor-made solutions for charging infrastructure.
Household appliances
Sales and replacement of household appliances such as refrigerators, cookers, dishwashers, washing machines and tumble dryers; disposal of old appliances and offering a range of brands.
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4.2/5

Rolf Gerber AG

Trust & reputation

ranQ Trust Score of Rolf Gerber AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Rolf Gerber AG scores 72.7 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.65.024%
  • 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.73.510%
  • 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%
Rolf Gerber 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%
Rolf Gerber 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%
Rolf Gerber AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Rolf Gerber AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 17 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
4.3
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle4.317
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Berchtoldstrasse 37
3012 Bern
Opening hours
Mon
07:15 - 11:45, 13:00 - 16:30
Tue
07:15 - 11:45, 13:00 - 16:30
Wed
07:15 - 11:45, 13:00 - 16:30
Thu
07:15 - 11:45, 13:00 - 16:30
Fri
07:15 - 11:45, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.960.445
Founded
1975 · 51 years
Last commercial register change
May 8, 2026
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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