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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,563 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesLa Tour-De-TrêmeCALEFA SA
CALEFA SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Calefa SA consists of planning, installing, maintaining and repairing heating, ventilation, sanitary, fire protection and insulation systems in Switzerland, particularly in the Romandy region.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered5
Heating systems
New or existing heating installations, boiler replacement, oil, gas, pellet and wood boilers, thermal solar collectors, heat pumps, installation diagnostics.
Ventilation
Installation of ventilation systems in villas and apartment buildings, extraction via bathroom ventilation, advice and technical assistance for optimal operation of the installations.
Sanitary installations
Traditional sanitary installations, renovation of bathrooms, pipe rehabilitation, water treatment, rainwater recovery, pumping clean and waste water, pressurisation.
Fire stopping
Fire stopping services as part of CVS works, carried out by qualified technicians to protect installations and buildings.
Insulation
Insulation works listed among the company’s areas of activity in French-speaking Switzerland, alongside heating, ventilation, sanitary installations and fire stopping.
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CALEFA SA

Trust & reputation

ranQ Trust Score of CALEFA SA

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

CALEFA SA 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.
x
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%
CALEFA SA scores 78.3 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.83.012%
  • 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.55.07%
CALEFA SA 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%
CALEFA SA scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

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

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Location

Rue des Agges 53
1635 La Tour-De-Trême

At a glance

Legal form
Corporation
UID
CHE-208.855.035
Founded
2017 · 9 years
Last commercial register change
May 22, 2017
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • FRBulle
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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