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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesBuilding installationMalterskao-Felder GmbH
kao-Felder GmbH Logo
Verified· 3 sourcesTrust Score4.1/5

kao-Felder GmbH

Summary

About the company

kao-Felder GmbH specialises in chimney sweeping, stove and chimney construction, and the restoration and repair of antique stoves. It also provides ventilation and solar panel cleaning and sells stoves and fire-related accessories.

AI-generated
Presence

Service area

Active in 1 of 26 cantons · 1 municipality

  • LUMalters
Offering

Products & services

Industry:Building installation
✓ Offered6
Chimney sweeping services
Cleaning, inspection and maintenance of heating units and connecting pipes; official combustion inspections for oil and gas heating systems, solid-fuel heating systems up to 70 kW, fire prevention and ash inspection.
Stove construction / antique stove construction / chimney construction
Planning and implementation of tiled stoves, soapstone stoves, fireplaces, fireplace stoves, hybrid and pellet stoves; restoration of antique stoves and fireboxes as well as flue-draught and chimney-cap solutions.
Ventilation cleaning
Cleaning and inspection of ventilation systems, including camera inspection, advice, planning of measures, as well as a before-and-after report on air quality, energy efficiency and fire protection.
Solar panel cleaning
Cleaning of solar installations and solar modules with a free on-site inspection, quotation preparation, professional cleaning and drone recording, including before-and-after photos and a report.
Outdoor fire pits and pizza ovens
Planning and installation of pizza ovens, garden fireplaces and fire bowls for outdoor areas, also according to individual wishes and ideas.
Bioethanol stoves
Modern bioethanol stoves as an alternative without a chimney or flue; stylish fire solution for indoor use.
Trust & reputation

ranQ Trust Score of kao-Felder GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 96% · As of November 2026

kao-Felder GmbH scores 68.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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CriterionValueWeight
Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from across all connected sources

Comparisons

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Location

Industriestrasse 30f
6102 Malters

At a glance

Legal form
Limited Liability Company
UID
CHE-114.556.557
Founded
2008 · 18 years
Last commercial register change
November 2, 2023
Employees
1 to 10
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  • 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.80.624%
  • 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.55.910%
  • 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.50.08%
kao-Felder GmbH scores 83.0 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.100.012%
  • 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%
  • 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.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
kao-Felder GmbH scores 86.7 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).86.722%
kao-Felder 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

kao-Felder GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 8 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

8 reviews
Sources
GGoogle58
★TrustpilotSoon
PProvenExpertSoon

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

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