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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceGumefensDousse Ramonage SA
Dousse Ramonage SA Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The company's core activities include Ramonage (chimney sweeping services), Contrôle (control of heating systems), Ventilation (ventilation technology), Services (maintenance and repair of heating systems), Assainissement de chauffage (heating system cleaning) and Protection Incendie (fire protection).

AI-generated
Offering

Products & services

Industry:Building Maintenance
✓ Offered7
Chimney sweeping
Traditional and industrial chimney sweeping for oil, gas, wood and pellet-fired heating systems, gas water heaters, stoves, fireplaces, industrial boilers, district heating and steam installations.
Combustion, compliance and thermal installation inspections
Checks of combustion and sealing, compliance inspections, inspections of thermal installations, CCTV inspection of flue gas ducts and checks of fuel quality.
Ventilation
Cleaning and maintenance of ventilation systems, camera inspection of ducts, antibacterial and anti-allergy treatment, interventions for buildings, industry, hospitals, restaurants and apartment blocks.
Heating system refurbishment
Sale and service of heat pumps: sales, biannual maintenance, servicing and cleaning, leak testing, software updates and handling of refrigerant fluids.
Services
Cleaning of solar panels, installation, commissioning and maintenance of pellet stoves of all brands, sale and service of Oekotube particulate filters.
Fire protection consulting
Tailored advice and project studies for quality assurance in fire protection, for conversions and new builds.
Fire protection quality assurance
Implementation of quality assurance levels 1 to 3, fire protection plans and concepts, support for requests for proposals, execution monitoring, acceptance and compliance file.
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4.1/5

Dousse Ramonage SA

Trust & reputation

ranQ Trust Score of Dousse Ramonage SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Dousse Ramonage 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.
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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%
Dousse Ramonage SA scores 78.6 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.75.012%
  • 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%
Dousse Ramonage SA scores 83.3 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).83.322%
Dousse Ramonage SA 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

Dousse Ramonage SA 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 October 2026.

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

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Location

En Palud 9
1643 Gumefens

At a glance

Legal form
Corporation
UID
CHE-184.093.611
Founded
2019 · 7 years
Last commercial register change
June 5, 2019
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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