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

About the company

Voltwerk AG provides electrical installations, building automation and photovoltaic solutions. The company also offers e-mobility services, maintenance and support, as well as planning and consulting for private, commercial and industrial projects.

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Offering

Products & services

Industry:Electrical Planning & InstallationSpecialized Construction InstallationsSolar & Photovoltaics
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3.4/5

Voltwerk AG

✓ Offered6
Electrical installations
Electrical installations for new builds, renovations and modernisations, commercial and industrial facilities, plus electrical service and fault repairs.
Photovoltaics
Photovoltaic systems with battery storage, energy management, ZEV solutions, plus maintenance, inspection and self-consumption optimisation.
Smart home and building automation
Smart home and building automation solutions with KNX and Loxone, multimedia and network cabling, security, alarm, video, and intercom systems.
E-mobility
E-mobility installations with wallboxes for private customers, charging infrastructure for commercial sites and multi-family buildings, load management, billing and PV integration.
Service and maintenance
Service and maintenance for electrical systems with repairs, fault clearance, electrical inspections, emergency service and 24-hour on-call support.
Planning and consulting
Planning and consulting with energy analyses, electrical planning, and PV planning including roof measurements and economic feasibility checks.
Trust & reputation

ranQ Trust Score of Voltwerk AG: 3.4 out of 5.0

Trust Score3.4/ 5.0

Solid

x

Data basis 58% · As of October 2026

Voltwerk 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%
Voltwerk AG scores 41.3 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.0.012%
  • 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%
Voltwerk 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%
Voltwerk AG scores 12.9 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 35.25.74%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Voltwerk AG reaches a ranQ Trust Score of 3.4 out of 5.0 — rated «Solid». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 58%, 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.

Press

Media

February 19, 2026Media
Aus Burtscher wird Voltwerk | Flawil
uzwil24.ch

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Location

Ergetenstrasse 5
9203 Niederwil Sg

At a glance

Legal form
Branch
UID
CHE-259.015.063
Founded
2026 · 0 years
Last commercial register change
February 13, 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.
76.0
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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