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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesBuilding automationGrossaffolternBirkhofer Elektro-Service
Birkhofer Elektro-Service Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Birkhofer Elektro-Service plans and installs high- and low-voltage electrical systems and provides electrical services. Its activities include smart-home and building automation, as well as photovoltaic solutions.

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Presence

Service area

Offering

Products & services

Industry:Building automationElectrician
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Birkhofer Elektro-Service

Photovoltaics
✓ Offered9
Power installations
Professional planning and execution of power installations for new builds, conversions and renovations.
Smart Home
Intelligent building automation with Loxone or KNX; central control of lighting, shading, heating and energy for new builds and retrofitting.
Low-voltage installations
Network, telephone and multimedia cabling as well as security and communication systems.
Electrical inspections
Safety checks and acceptance tests for electrical installations in accordance with statutory requirements.
Device testing
Testing of electrical appliances according to VDE 0701 + 0702 for greater operating safety.
Repairs
Repairs for faults and defects in electrical systems and appliances.
Sale of electrical materials
Sale of electrical materials for electrotechnical applications.
Planning & Project Design
Planning and project design of electrical projects from A to Z.
Advisory & Expert Reports
Independent advice and expert reports on electrical engineering.
Trust & reputation

ranQ Trust Score of Birkhofer Elektro-Service: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 88% · As of November 2026

Birkhofer Elektro-Service scores 58.1 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.63.324%
  • 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: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Birkhofer Elektro-Service scores 71.2 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%
Birkhofer Elektro-Service scores 86.7 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).86.722%
Birkhofer Elektro-Service scores 8.3 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 35.8.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Birkhofer Elektro-Service reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 5 customer reviews. The data basis is 88%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.2
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.25
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Wengistrasse 48
3257 Grossaffoltern
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-392.838.975
Founded
2017 · 9 years
Last commercial register change
December 14, 2017
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • BEGrossaffoltern
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.
67.0
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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