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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsMelchnauRoth Installations AG
Roth Installations AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Roth Installations AG consists of planning, realization and maintenance of electrical and heating installations, including the assembly, repair and maintenance of heating systems, as well as the execution of locksmith work, mechanical repairs and welding work.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered9
Electrical installations
Electrical installations for new builds, extensions and repairs; planning of up-to-date installations, high-voltage work, lighting systems, household appliances, IT networks, telephony as well as TV and satellite systems.
Heating installations
Heating installations for oil heating systems, gas heating systems, wood/pellet heating, heat pumps and individual solutions; analysis, advice, installation, commissioning, maintenance and repair work.
Photovoltaic systems
Planning, installation and operation of photovoltaic systems for using solar energy and feeding into the power grid.
E-mobility
Installation of charging stations for electric vehicles in public spaces and private households.
IT / Telematics
Advisory and implementation of telephone, TV and internet connections, network cabling with copper or fibre optic as well as fibre-optic splicing work.
Network construction
Network construction on the 400-volt grid with pole replacements, overhead-line terminations/breaks, cabling, service connections, dismantling of roof mounting masts and street lighting.
Electrical and heating service
Repairs and service work in the workshop or on site on electric motors, heaters/fan heaters, lamps, household appliances, radiator valves, floor heating systems and home installations.
Sales of household and electrical appliances
Specialist electrical shop with bulbs, coffee machines, vacuum cleaners, hair dryers and other household and electrical appliances; ordering missing devices or spare parts.
Crane work and drilling
Crane work with a Unimog as well as drilling for foundations, poles, posts or shelters; earth drilling up to two metres depth.
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4.1/5

Roth Installations AG

Trust & reputation

ranQ Trust Score of Roth Installations AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Roth Installations AG scores 69.0 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.70.024%
  • 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.45.610%
  • 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%
Roth Installations AG scores 85.5 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.55.07%
Roth Installations 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%
Roth Installations AG scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Roth Installations AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 5 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
4.6
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle4.65
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Neustrasse 4
4917 Melchnau
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
Closed
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.146.131
Founded
1997 · 29 years
Last commercial register change
July 29, 2026
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.
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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