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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureRenovationBiberistHeizwerk AG Lüthy
Heizwerk AG Lüthy Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Heizwerk AG Lüthy carries out chimney-sweeping work and inspects and cleans combustion systems, heating systems, stoves and chimneys. It also performs combustion inspections for gas, oil, pellet, log-wood and wood-chip systems, and provides advice and inspections for structural fire protection.

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Service area

Offering

Products & services

Industry:Renovation
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3.9/5

Heizwerk AG Lüthy

✓ Offered3
Chimney sweeping
Periodic inspection and cleaning of combustion units, heating systems and stoves, chimneys and connecting flues, condensate drain lines and air intake devices in buildings.
Fire protection
Inspections and cleanings to protect against fires, explosions and poisoning, as well as advice on passive structural fire protection for new builds, extensions and renovations.
Combustion inspection
Neutral combustion inspections including measurement of the system condition, advice in case of refurbishment and forwarding of the data to the environmental office.
Trust & reputation

ranQ Trust Score of Heizwerk AG Lüthy: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

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Data basis 96% · As of November 2026

Heizwerk AG Lüthy scores 59.8 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.62.524%
  • 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.61.010%
  • 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%
Heizwerk AG Lüthy scores 78.3 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.83.012%
  • 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%
Heizwerk AG Lüthy 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%
Heizwerk AG Lüthy scores 7.1 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 35.7.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Heizwerk AG Lüthy reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.2 out of 5 stars from 10 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.

Reviews

Aggregated rating

Aggregated rating
4.2
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle4.210
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Grüttstrasse 96
4562 Biberist
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-132.738.441
Founded
2017 · 9 years
Last commercial register change
May 6, 2026
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SOBiberist
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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