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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersHünenbergKeiser & Heini AG
Keiser & Heini AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Keiser & Heini AG provides consulting, planning, installation and service for heating systems, solar thermal installations and heat pumps. The company installs solar thermal systems, integrates solar support for heating systems and is an official competence partner of Heliotherm heat pumps.

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Products & services

Industry:Energy SuppliersSolar & Photovoltaics
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4.1/5

Keiser & Heini AG

✓ Offered3
Consulting, planning, installation and service for heating and heat pump systems
Consulting, planning, installation and service for heat generation in buildings; solutions for new builds and conversions using renewable energy and environmentally friendly technology.
Solar thermal systems
Thermal solar energy for heating domestic hot water and swimming pool water, as well as for solar support of the heating system; including yield and cost-effectiveness calculations.
Heat pumps with Heliotherm
Heliotherm heat pumps as an expert partner; efficient machines for building heating and heat supply.
Trust & reputation

ranQ Trust Score of Keiser & Heini 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.

Keiser & Heini 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%
Keiser & Heini AG scores 85.5 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.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.55.07%
Keiser & Heini 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%
Keiser & Heini AG scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Keiser & Heini 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

Bösch 63
6331 Hünenberg

At a glance

Legal form
Corporation
UID
CHE-114.642.501
Founded
2008 · 18 years
Last commercial register change
March 27, 2014
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.
100.0
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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