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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceRomanel-Sur-LausanneGerber Ramonage Sàrl
Gerber Ramonage Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Gerber Ramonage Sàrl is to provide services in the field of ramonage, particularly in the maintenance and inspection of heating systems, chimneys and other thermal installations, including combustion tests and camera inspections.

AI-generated
Offering

Products & services

Industry:Building Maintenance
✓ Offered4
Chimney sweeping for heating systems
Cleaning of heating systems for gas, oil and wood pellets; maintenance work, general inspection, servicing of neutralisation tanks and verification of fire protection directives.
Chimney sweeping for room fireplaces
Chimney sweeping of living-room fireplaces, Swedish stoves and other decorative installations; cleaning, inspection of leak tightness, ensuring the draught and assessing fire protection standards.
Combustion tests
Analysis of flue gases for oil and gas installations; measurement of losses due to gaseous effluents, soot index, carbon monoxide and nitrogen oxides.
Camera inspection
Inspection of chimneys, ventilation ducts and flues using a camera; detection of leak defects, moisture, cracks, holes and blockages, with photos or videos.
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3.9/5

Gerber Ramonage Sàrl

Trust & reputation

ranQ Trust Score of Gerber Ramonage Sàrl: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Gerber Ramonage Sàrl scores 62.3 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.35.310%
  • 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.88.08%
Gerber Ramonage Sàrl scores 70.2 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.70.212%
  • 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%
Gerber Ramonage Sàrl 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%
Gerber Ramonage Sàrl scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gerber Ramonage Sàrl reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle4.33
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Chemin du Raffort 5
1032 Romanel-Sur-Lausanne

At a glance

Legal form
Limited Liability Company
UID
CHE-485.657.624
Founded
2020 · 6 years
Last commercial register change
June 18, 2020
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.
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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