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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceBerneckGrässli Kaminfeger GmbH
Grässli Kaminfeger GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Alois Buschor Kaminfeger GmbH is the provision of services related to combustion systems, particularly: sweeping and inspecting chimneys, maintenance and repair of combustion systems, consulting and installation of smoke detectors, and energy consulting for the optimization of heating systems. The company thus offers a comprehensive range of services in the field of chimney and combustion technology.

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Products & services

Industry:Building Maintenance
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4.2/5

Grässli Kaminfeger GmbH

✓ Offered
4
Chimney and flue cleaning
Sweeping and checking chimneys for safe combustion, proper function and optimal energy efficiency.
Maintenance and repair of heating systems
Maintenance, inspection and repair of heating systems to ensure efficiency, safety and smooth operation.
Advisory and installation of smoke detectors
Advice on selection and installation of smoke detectors to improve fire protection in residential and commercial properties.
Energy advisory
Advisory for optimising the heating system, with guidance on saving energy and reducing the CO2 footprint.
Trust & reputation

ranQ Trust Score of Grässli Kaminfeger GmbH: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Grässli Kaminfeger GmbH scores 66.9 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.73.124%
  • 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%
Grässli Kaminfeger GmbH scores 80.9 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.95.212%
  • 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%
Grässli Kaminfeger GmbH 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%
Grässli Kaminfeger GmbH scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grässli Kaminfeger GmbH reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 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
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Kirchgass 12
9442 Berneck
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-358.448.891
Founded
2013 · 13 years
Last commercial register change
January 5, 2026
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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