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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberSionThermocast Sàrl
Thermocast Sàrl Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Thermocast Sàrl is a company offering heating, air‑conditioning and solar‑thermal solutions, with services for planning, installation, commissioning, maintenance and replacement of heat pump and air‑conditioning systems. The company also provides technical consulting, support for subsidies, remote monitoring and mobile air‑conditioning rental.

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Service area

Offering

Products & services

Industry:Plumber
✓ Offered7
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Thermocast Sàrl

Heat pump installation
Complete installation of the heating system with heat pumps, underfloor heating and radiators; support with planning, advisory office, commissioning and remote monitoring.
Heating refurbishment & grant management
Project study and sizing, preparation of the file for public submission, management of grant applications, coordination of ancillary work and certification of the PAC system module.
Heat pump replacement
Replacement of old or faulty heat pumps, prior technical inspection, dismantling, adaptation of the system and support with Stiebel-Eltron.
After-sales service & maintenance
After-sales service, troubleshooting, maintenance and leak tests for heat pumps and other installations; maintenance contracts available.
Air conditioning
Custom air-conditioning solutions for homes and premises, with split systems, passive or active cooling and adaptation to different situations.
Rental of mobile air conditioning
Rental of custom mobile air conditioners, including delivery, installation, repairs and device exchange; monoblock and split models available.
Thermal solar
Installation and support for thermal solar to cover domestic hot water needs with solar energy.
Trust & reputation

ranQ Trust Score of Thermocast Sàrl: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Thermocast Sàrl has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Thermocast Sàrl scores 77.2 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.86.512%
  • 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.55.07%
Thermocast Sàrl 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%
Thermocast Sàrl scores 1.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.1.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Thermocast Sàrl reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Route des Fournaises 49
1950 Sion

At a glance

Legal form
Limited Liability Company
UID
CHE-374.803.393
Founded
2016 · 10 years
Last commercial register change
September 30, 2024
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • VSSion
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.
88.0
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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