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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsElggJaeggi Gmünder Energietechnik AG
Jaeggi Gmünder Energietechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Jaeggi Gmünder Energietechnik AG encompasses the planning, conception, and installation of solutions in the field of building technology and energy, particularly: Sanitary: planning and realization of sanitary facilities and works in single-family homes Heating: planning and realization of efficient heat generation systems, including heat pumps, solar technology, and fossil energy Solar heat: conception and installation of solar collector systems for domestic hot water and space heating Photovoltaics: planning and installation of photovoltaic systems for power generation. The company thus offers comprehensive solutions for building technology and energy supply.

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Offering

Products & services

Industry:Solar & Photovoltaics
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4.3/5

Jaeggi Gmünder Energietechnik AG

Energy Industry
✓ Offered4
Photovoltaics
Photovoltaic systems for single-family homes, school facilities and industrial complexes; complete installation from the roof to the connection in the main distribution board, including advice, design, permits and inspections.
Heating
Planning and implementation of heating systems with heat pumps, solar technology or fossil energy; renovation and new installation of complete heating systems, including coordination and processing with authorities and funding institutions.
Solar thermal
Solar thermal collector systems for domestic hot water heating and heating support; advice, design, installation and maintenance of small compact systems up to large-scale plants.
Plumbing
Sanitary work in private homes, from full planning of the new bathroom to the installation of individual fittings and shower heads; planning, support and implementation of conversions.
Trust & reputation

ranQ Trust Score of Jaeggi Gmünder Energietechnik AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

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Data basis 96% · As of October 2026

Jaeggi Gmünder Energietechnik AG scores 75.9 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.70.824%
  • 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.68.910%
  • 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.100.08%
Jaeggi Gmünder Energietechnik AG scores 84.8 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.89.612%
  • 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%
Jaeggi Gmünder Energietechnik AG scores 85.0 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).85.022%
Jaeggi Gmünder Energietechnik AG scores 48.6 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 35.48.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jaeggi Gmünder Energietechnik AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.5 out of 5 stars from 14 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
4.5
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle4.514
★TrustpilotSoon
PProvenExpertSoon

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

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Location

St. Gallerstrasse 5a
8353 Elgg
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-242.923.242
Founded
2015 · 11 years
Last commercial register change
April 30, 2024
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.100.06%
  • 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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