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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,888 companies indexed · Last updated: today
DirectoryCrafts & TradesElectrical Planning & InstallationBernAlfred Haldemann AG
Alfred Haldemann AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Elektro Haldemann is the provision of electrical services, including new installations, conversions and renovations, service and small installations, electrical analysis, electrical control and the sale of household appliances. In addition, the company offers specialized services in the areas of E-Mobility, electrical safety, photovoltaics, IT networks/multimedia, Smart Home and lighting solutions.

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Products & services

Industry:Electrical Planning & Installation
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Alfred Haldemann AG

12
New installations
New installations for single- and multi-family houses, Minergie buildings, as well as commercial and industrial properties; planning and execution of electrical installations with advice on shutters, shading, alarm systems, IT cabling, e-mobility and door intercom systems.
Renovations and conversions
Electrical renovations and conversions for private clients, commercial premises and public authorities; partial or complete renovations of electrical installations, using existing pipe systems and dust-reduced renovations in occupied homes.
Service and small installations
Service work, small installations and repairs; inspection and maintenance of electrical installations and devices, installation of lighting fixtures, replacement of light sources, connection of telephone lines and troubleshooting of electrical faults.
Electrical inspections
Periodic inspections of electrical installations and devices in accordance with NIV, safety checks during change of ownership, acceptance and final inspections of new installations as well as condition analyses and advice.
Photovoltaic systems and solar energy storage
Photovoltaic systems, solar energy storage and advice on solar solutions; self-consumption of the electricity produced on-site and use of suitable roofs for the system.
E-mobility
Car charging stations for home and for properties; connection with photovoltaic systems, billing in underground garages and planning of multiple charging stations with load management.
Building automation and smart home
Building automation and smart home with control of lighting, shading, ventilation, heating, air conditioning, household appliances, security systems and audio systems via switches, control panels, remote controls or a smartphone.
IT network / multimedia installations
Planning and installation of high-performance IT networks and multimedia installations for private clients and businesses; network analysis, modernisation of existing networks, home networks, door intercom systems, alarm systems, TV and satellite systems.
Electrical safety
Safety solutions with surge protection, RCD safety switches (FI), fire alarm systems, alarm systems and video surveillance, door intercom systems, access control locking systems and safety functions in the smart home.
Lighting solutions
Advice, project management, sample selection, sourcing and implementation of lighting concepts; light intensity, functionality and ambience for living spaces and workplaces.
Electrical analysis
Analysis of electrical installations in the building to reduce energy costs, identify safety risks and develop technical improvements for comfort and safety.
Household appliances
Sale of household appliances to order; washing machines, tumble dryers, dishwashers, refrigerators, ovens, steamers and wine coolers including delivery, installation and fitting.
Trust & reputation

ranQ Trust Score of Alfred Haldemann AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Alfred Haldemann AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Alfred Haldemann 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%
Alfred Haldemann AG scores 83.3 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).83.322%
Alfred Haldemann AG scores 91.4 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 35.91.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Alfred Haldemann AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Wabernstrasse 75
3007 Bern

At a glance

Legal form
Corporation
UID
CHE-102.475.283
Founded
1978 · 48 years
Last commercial register change
October 10, 2017
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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