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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryReal EstateFacility Management & CleaningNeukirch (Egnach)gerster ag Kaminfeger, Solar- & Lüftungsreinigung
gerster ag Kaminfeger, Solar- & Lüftungsreinigung Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Gerster ag is the execution of chimney sweep, solar and ventilation cleaning work, including furnace inspections and measurement technology. Specifically, this includes the cleaning of: chimneys and combustion systems, solar systems and photovoltaic systems, ventilation systems and exhaust systems. In addition, the company also offers training and education in these areas.

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Offering

Products & services

Industry:Facility Management & Cleaning
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3.8/5

gerster ag Kaminfeger, Solar- & Lüftungsreinigung

✓ Offered4
Chimney sweeping
Chimney sweeping work, cleaning of fireplaces, thermal storage stoves, pellet and wood-chip heating systems, as well as maintenance of heat exchangers and removal of wasp nests from chimneys.
Solar panel cleaning
Cleaning of solar thermal systems and photovoltaic systems, including work at height, with an in-house access platform, professional equipment, water treatment and inspection for damage.
Ventilation cleaning
Cleaning of ventilation systems, residential ventilation units (KWL), extract air systems and home ventilation systems, including cleaning of ducts, grilles and fans, as well as video inspection.
Combustion inspections
Official combustion inspections, flue-gas measurements for oil and gas heating systems, CO measurements at wood-fired heating appliances, visual inspections of wood-fired combustion and operation of the specialist service for municipalities.
Trust & reputation

ranQ Trust Score of gerster ag Kaminfeger, Solar- & Lüftungsreinigung: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

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Data basis 54% · As of October 2026

gerster ag Kaminfeger, Solar- & Lüftungsreinigung 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%
gerster ag Kaminfeger, Solar- & Lüftungsreinigung scores 59.7 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%
gerster ag Kaminfeger, Solar- & Lüftungsreinigung 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%
gerster ag Kaminfeger, Solar- & Lüftungsreinigung scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

gerster ag Kaminfeger, Solar- & Lüftungsreinigung reaches a ranQ Trust Score of 3.8 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

Schochenhausstrasse 10a
9315 Neukirch (Egnach)

At a glance

Legal form
Corporation
UID
CHE-239.499.947
Founded
2024 · 2 years
Last commercial register change
July 4, 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.100.06%
  • 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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