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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationAltendorfSoltherm AG
Soltherm AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Soltherm AG is the development, manufacture and distribution of heat pumps and ventilation technology, including related services such as customer service and maintenance. The company also offers induction devices, ventilation devices and filters and specializes in controlled residential ventilation and heat recovery.

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Offering

Products & services

Industry:Sealing & InsulationPlumbing & Building Services
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3.9/5

Soltherm AG

Mechanical Engineering Industry
✓ Offered6
Heat pumps
Heat pumps for heating, domestic hot water and, in part, cooling; Soltherm and Ochsner systems, including new replacement, consultation, quotations and retrofitting of existing Mani-&-Fink systems.
Ventilation units and ventilation technology
Ventilation units and ventilation technology with heat recovery, controlled room ventilation and regional offers for residential and comfort ventilation.
Customer service
Customer service for heat pumps and ventilation systems, including consultation, a no-obligation quote and support with maintenance requests.
Soltherm induction units
Induction units for heating operation with hygienic outdoor air, condensate-free cooling and low-temperature heating, installed compactly by the window.
Mosway ventilation unit
Mosway Komfort 500 m³/h with heat recovery, EC fans, anti-freeze function, electronic control and various operating stages.
TemoVex (RecIndovent)
TemoVex ventilation units as a replacement solution for older systems, with 1:1 replacement, documentation and a quotation including the unit and installation.
Trust & reputation

ranQ Trust Score of Soltherm AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Soltherm AG scores 53.8 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.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.27.910%
  • 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.35.08%
Soltherm AG scores 89.3 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%
Soltherm 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%
Soltherm AG scores 1.1 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 35.1.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Soltherm 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 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Zürcherstrasse 16a
8852 Altendorf

At a glance

Legal form
Corporation
UID
CHE-107.901.643
Founded
1975 · 51 years
Last commercial register change
March 14, 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.
100.0
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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