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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsRöschenzKaminfeger Frey GmbH
Kaminfeger Frey GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Kaminfeger Frey GmbH encompasses the execution of chimney sweep services, maintenance work, repair work, and services in the field of combustion systems, ventilation systems, and fire protection. This includes, in particular: chimney sweep services (wood combustion, oil combustion, gas combustion), maintenance work on combustion systems, repair work on combustion systems, ventilation work (ventilation cleaning), fire protection services, and environmental consulting. The company also offers training and consulting services in these areas.

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Products & services

Industry:Specialized Construction Installations
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Kaminfeger Frey GmbH

✓ Offered9
Combustion inspection
Official combustion inspection with modern measuring equipment; advice on the air-quality and energy function of the heating unit and tips for optimal operation.
Maintenance and cleaning of wood-burning heating systems
Cleaning of chimneys, flue gas ducts and fresh-air supply for systems fired with split wood, wood chips and pellets; disposal of residues and advice for safe operation.
Maintenance and cleaning of oil-fired heating systems
Alkaline boiler cleaning with mechanical pre-cleaning, treatment of combustion residues and professional disposal of liquid residues.
Maintenance and cleaning of gas-fired heating systems
Periodic inspection and cleaning of gas heating systems, including flue system, seals, condensate drains, combustion-air supply and heat exchangers.
Ventilation cleaning
Inspection and cleaning of ventilation systems, ductwork, filters, fans and exhaust-air systems in residential, commercial and industrial buildings.
Repairs to combustion heating systems
Minor repairs, troubleshooting and replacement of defective parts such as spark plugs, seals, flue pipes and stove doors.
Fire protection consultation
Advice on fire protection and heating installations for builders and architects; reporting or remedying defects as well as preventive information for safe operation.
Environmental advice
Advice on proper operation of heating units, avoiding emissions and handling unsuitable fuels such as paper, waste wood and refuse.
Vocational training
Training to become a chimney sweep (female or male) with practical apprenticeship, introductory courses, vocational school and the option of Berufsmaturität.
Trust & reputation

ranQ Trust Score of Kaminfeger Frey GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Kaminfeger Frey GmbH 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%
Kaminfeger Frey GmbH scores 79.8 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.92.512%
  • 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%
Kaminfeger Frey GmbH 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%
Kaminfeger Frey GmbH scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kaminfeger Frey GmbH 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

Hagenbuchenstrasse 19
4244 Röschenz

At a glance

Legal form
Limited Liability Company
UID
CHE-163.862.700
Founded
2014 · 12 years
Last commercial register change
April 14, 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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