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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesWolhusenJost Renggli AG
Jost Renggli AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Jost Renggli AG provides building services including heating, sanitary systems, ventilation, air conditioning, solar energy and energy consultancy. The company also carries out bathroom renovations, photovoltaic and solar-thermal installations, and industrial work such as stainless-steel piping, reservoir prefabrication and core drilling.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
Heating / Sanitary
Planning, installation and renovation for bathrooms, heating, ventilation and air conditioning; tailor-made solutions for residential and commercial properties.
Emergency service
Emergency service for malfunctions and acute problems, with service reporting and telephone availability outside regular operating hours.
Solar energy
Solar systems and solutions for using solar energy, supplemented by a solar calculator for initial planning.
Energy consulting
Renovation concepts, GEAK and GEAKplus, thermal images as well as advice on the building envelope, building services, PV systems, subsidies and measurements.
Industrial engineering
Industrial engineering work and solutions in the field of building services for buildings and facilities.
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3.9/5

Jost Renggli AG

Trust & reputation

ranQ Trust Score of Jost Renggli AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Jost Renggli AG scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Jost Renggli AG scores 87.7 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.92.512%
  • 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%
Jost Renggli 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%
Jost Renggli AG scores 31.4 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 35.31.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Jost Renggli AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Bahnhofstrasse 29
6110 Wolhusen

At a glance

Legal form
Corporation
UID
CHE-489.597.010
Founded
2014 · 12 years
Last commercial register change
March 7, 2019
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.85.03%
    • Full methodology

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