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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesHeating installerGamsHeizplan HPA AG
Heizplan HPA AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Heizplan HPA AG plans, fabricates, installs and maintains renewable energy systems. Its services include photovoltaic installations, heat pumps, battery storage and charging stations, as well as consulting, project planning and electrical installations.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Heating installerPhotovoltaics
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4.6/5

Heizplan HPA AG

✓ Offered4
Photovoltaic systems
Photovoltaic systems for new builds, conversions, renovations and modernisations; consulting, design, installation, commissioning, testing, maintenance as well as permit applications and funding contributions.
Heat pumps
Heat pumps for heating buildings; air/water heat pump and ground-source heat pump, including consulting, installation and commissioning.
Battery storage systems
Battery storage systems for storing excess renewable energy; to increase self-consumption, as emergency power supply and with intelligent control.
Charging stations
Charging stations for electric vehicles; AC and DC solutions, charging power up to 22 kW or up to 350 kW, optionally with remote monitoring, payment systems and intelligent charging management.
Trust & reputation

ranQ Trust Score of Heizplan HPA AG: 4.6 out of 5.0

Trust Score4.6/ 5.0

Excellent

x

Data basis 96% · As of November 2026

Heizplan HPA AG scores 89.8 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.89.724%
  • 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.81.910%
  • 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.100.08%
Heizplan HPA AG scores 89.3 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.70.07%
Heizplan HPA AG scores 86.7 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).86.722%
Heizplan HPA AG scores 68.6 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 35.68.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Heizplan HPA AG reaches a ranQ Trust Score of 4.6 out of 5.0 — rated «Excellent». The rating draws, among other things, on 5.0 out of 5 stars from 24 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
5
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle524
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Karmaad 36
9473 Gams
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.892.938
Founded
1983 · 43 years
Last commercial register change
August 26, 2019
Employees
11 to 20

Active in 7 of 26 cantons

  • Eastern Switzerland
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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