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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceEndingenA. Leutwyler AG
A. Leutwyler AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of A. Leutwyler AG is the provision of services in the field of chimney and heating technology, including chimney sweeping, exhaust gas measurements, fire protection, ventilation cleaning and maintenance, as well as combustion control for wood, oil and gas systems.

AI-generated
Offering

Products & services

Industry:Building Maintenance
✓ Offered4
Chimney sweeping
Chimney sweeping, plant maintenance, cleaning and inspection of heating systems; cleaning of chimneys, flue gas lines, oil, gas and wood heating systems, fireplaces and industrial burners.
Exhaust gas measurements and combustion inspection
Exhaust gas measurements and official combustion inspections for oil, gas and wood-fired heating systems; measurements for plants up to 1 megawatt according to LRV, including checks for wood-fired systems.
Fire protection
Municipal fire protection and QSS support; fire protection approvals, acceptance inspections, fire protection assessments, project support and maintenance for construction projects.
Ventilation cleaning and maintenance
Cleaning and maintenance of steam extractors, air-conditioning and ventilation ducts; inspection of fans, ducts and thermoblocks, vacuum, steam, high-pressure and chemical cleaning, disinfection and filter replacement.
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4.1/5

A. Leutwyler AG

Trust & reputation

ranQ Trust Score of A. Leutwyler AG: 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.

A. Leutwyler AG 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%
A. Leutwyler AG scores 84.8 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.89.612%
  • 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.70.07%
A. Leutwyler AG 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%
A. Leutwyler AG scores 9.1 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 35.9.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

A. Leutwyler AG 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

Steig 3
5304 Endingen

At a glance

Legal form
Corporation
UID
CHE-284.615.898
Founded
2015 · 11 years
Last commercial register change
October 4, 2019
Employees
11 to 20
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.
100.0
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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