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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSchachen LuHeitzmann AG
Heitzmann AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Heitzmann AG designs, manufactures and supplies wood-fired heating systems — including pellet, log and wood-chip boilers — as well as heating modules and accessories, and provides consulting, planning, installation and maintenance services for residential, commercial and industrial customers.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered8
Pellet heating
Pellet boilers for single-family homes, residential buildings, public buildings, industry, commerce and residential districts; automatic feed, ignition, cleaning, pellet storage and accessories.
Log heating
Log boilers with 50 cm and 1 m for single-family homes, agriculture, residential buildings and wood processing; automatic ignition, buffer tank, advice and storage solutions.
Woodchip heating
Woodchip boilers for agriculture, public buildings, commerce, industry and district heating plants; automated feeding, high efficiency, low emissions, storage and transport systems.
Combined heating
Combined heating systems for logs and pellets, with automatic switchover, common control, buffer tank and automatic ignition; available for renovation and new installations.
Maintenance and servicing
Regular checks, cleaning, verification of fuel transport, adjustments, function testing and software updates for wood boilers.
Commissioning
Check of the electrical installation, hydraulics, chimney and combustion; initial start-up of the boiler, instructions for use and handover of a dossier.
Subsidies
Advice on cantonal support programmes and EZS for replacing an oil or gas heating system with a wood boiler.
Visit our exhibition
Visits in Schachen and Roche VD to see wood boilers in operation, storage systems, components and get personalised advice.
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4.6/5

Heitzmann AG

Trust & reputation

ranQ Trust Score of Heitzmann AG: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Heitzmann AG scores 82.7 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.76.824%
  • 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.92.510%
  • 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.88.08%
Heitzmann AG scores 95.9 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.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.90.07%
Heitzmann AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).85.022%
Heitzmann AG scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Heitzmann AG reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.6 out of 5 stars from 37 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 37 reviews across all connected sources

Sources
GGoogle4.637
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Gewerbering 5
6105 Schachen Lu
Opening hours
Mon
08:00 - 11:45, 13:15 - 17:00
Tue
08:00 - 11:45, 13:15 - 17:00
Wed
08:00 - 11:45, 13:15 - 17:00
Thu
08:00 - 11:45, 13:15 - 17:00
Fri
08:00 - 11:45, 13:15 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.800.534
Founded
1976 · 50 years
Last commercial register change
June 28, 2024
Employees
51 to 100
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.85.03%
    • Full methodology

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