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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateFacility Management & CleaningBoswilKaminfeger Trottmann GmbH
Kaminfeger Trottmann GmbH Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Kaminfeger Trottmann GmbH is the cleaning and maintenance of chimneys and heating systems for private households and commercial businesses. This includes, in particular, the removal of soot and deposits, ensuring the efficiency and safety of the systems, as well as implementing customized solutions for individual needs.

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Products & services

Industry:Facility Management & Cleaning
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3.5/5

Kaminfeger Trottmann GmbH

✓ Offered6
Chimney and flue system cleaning
Cleaning and inspection of chimney and flue systems for private households, commercial businesses and public institutions.
Heating system inspections and emission measurements
Inspections of heating systems, emission measurements, and professional inspections in the relevant and other municipalities.
Ventilation system maintenance
Maintenance of ventilation systems for safe and efficient systems in residential, commercial and public settings.
Fire protection consulting and prevention
Fire protection consulting and prevention to support safety and legally compliant operation of systems.
Chimney and stove service
Servicing and cleaning of fireplaces, fireplace stoves and wood stoves, as well as professional painting work on tiled stoves and cookers.
Energy efficiency and environmental consulting
Advisory services on energy efficiency and environmental protection in connection with heating systems and their operation.
Trust & reputation

ranQ Trust Score of Kaminfeger Trottmann GmbH: 3.5 out of 5.0

Trust Score3.5/ 5.0

Solid

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Data basis 100% · As of October 2026

Kaminfeger Trottmann GmbH scores 52.7 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
  • 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.68.224%
  • 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.17.610%
  • 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%
Kaminfeger Trottmann GmbH scores 57.1 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.39.612%
  • 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 Trottmann 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%
Kaminfeger Trottmann GmbH scores 7.2 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 35.1.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.13.34%
Qualifications+0.00

Kaminfeger Trottmann GmbH reaches a ranQ Trust Score of 3.5 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

March 26, 2025Media
«Chemmifeger» Ewald Trottmann hängt seinen Kratzbesen nach 40 Jahren an den Nagel
aargauerzeitung.ch

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Location

Oberdorfstrasse 23
5623 Boswil
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-139.814.184
Founded
2024 · 2 years
Last commercial register change
November 7, 2024
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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