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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryFinance & InsuranceHolding CompaniesWeinfeldenPrandini Holding AG
Prandini Holding AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Prandini Holding AG is a building services company providing planning and installation of heating, ventilation and sanitary systems. Its services include consultation, project planning, installation, maintenance and repairs, as well as solutions such as heat pumps, solar thermal and photovoltaic systems and water treatment.

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Products & services

Industry:Holding Companies
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Prandini Holding AG

4
Heating installations
Heating installations for new builds and conversions, inspections and maintenance contracts; consulting, planning and execution, heat pumps, solar heating, photovoltaics, wood-fired heating systems and pipe fitting work.
Ventilation installations
Ventilation installations for new builds and conversions, inspections and maintenance contracts; consulting, planning and execution, cleaning and maintenance of ventilation systems for private clients and commercial properties.
Sanitary installations
Sanitary installations for bathroom conversions and new builds; consulting and planning, energy optimisation, water treatment, prefabrications, water softening systems, shower toilets (WC doccia) and sanitary service.
Maintenance and customer service
Maintenance and customer service for building-technology breakdowns and faults; quick help with problems involving heat, air and water as well as service requests.
Trust & reputation

ranQ Trust Score of Prandini Holding AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Prandini Holding AG scores 77.9 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.65.024%
  • 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.91.110%
  • 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%
Prandini Holding AG scores 70.4 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.64.612%
  • 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.55.07%
Prandini Holding 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%
Prandini Holding AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Prandini Holding AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 35 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
4.3
of 5

Aggregated from 35 reviews across all connected sources

Sources
GGoogle4.335
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Weststrasse 14
8570 Weinfelden
Opening hours
Mon
07:00 - 11:45, 13:00 - 17:00
Tue
07:00 - 11:45, 13:00 - 17:00
Wed
07:00 - 11:45, 13:00 - 17:00
Thu
07:00 - 11:45, 13:00 - 17:00
Fri
07:00 - 12:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-305.059.189
Founded
2021 · 5 years
Last commercial register change
March 18, 2021
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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