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

About the company

Jost Renggli AG provides building services and engineering solutions for heating, sanitary installations, ventilation and air conditioning, as well as bathroom renovations and water-softening systems. The company designs and installs solar systems (photovoltaic and thermal), offers energy consulting (including GEAK and thermal imaging) and carries out industrial stainless-steel piping, reservoir prefabrication and core drilling.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
Heating systems
Heating systems for new builds and renovations, including oil and gas heating, pellet heating, solid-fuel and wood-chip firing, heat pumps, district heating connection and solar heating.
Sanitary installations
Bathroom renovations, new bathroom construction, water softening systems, shower WC and service work on water heaters and underfloor heating.
Ventilation systems
Controlled residential ventilation, industrial ventilation systems and exhaust air systems for residential buildings, offices, commercial premises and kitchens.
Air conditioning
Air conditioning for offices and practices, retail stores, restaurants, lounges, wine cellars and server rooms with wall, ceiling and split units.
Service and maintenance
Emergency service, service alerts and maintenance of water heaters, underfloor heating, filters and pipelines.
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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 84.1 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.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

Unterdorfstrasse 14
6122 Menznau

At a glance

Legal form
Branch
UID
CHE-388.841.810
Founded
2007 · 19 years
Last commercial register change
December 2, 2014
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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