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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesUnterengstringenHeizli Haustechnik GmbH
Heizli Haustechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of Heizli Haustechnik GmbH is the provision of services in the field of heating technology, particularly the planning, installation, maintenance and repair of heating systems.

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Offering

Products & services

Industry:Specialized Construction ActivitiesPlumbing & Building Services
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4.1/5

Heizli Haustechnik GmbH

✓ Offered3
Heating system installation
Complete heating systems for single- and multi-family homes, industrial, commercial and public buildings; oil, gas and pellet heating systems, solar installations, heat pumps, floor heating, radiator installations.
Heating service
Chemical cleaning and flushing of underfloor heating to eliminate dirt, deposits and performance problems.
Heating conversions and renovations
Conversion and renovation work on heating systems and buildings, including boiler refurbishment.
Trust & reputation

ranQ Trust Score of Heizli Haustechnik GmbH: 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.

Heizli Haustechnik GmbH 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%
Heizli Haustechnik GmbH scores 78.5 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.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.55.07%
Heizli Haustechnik GmbH 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%
Heizli Haustechnik GmbH 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

Heizli Haustechnik GmbH 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

Obere Hönggerstrasse 9a
8103 Unterengstringen

At a glance

Legal form
Limited Liability Company
UID
CHE-220.164.338
Founded
2015 · 11 years
Last commercial register change
May 13, 2022
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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