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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesMünchensteinHeizwert AG
Heizwert AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Heizwert AG is a consulting, planning and heating-construction firm that carries out heating renovations and replacement of heating systems with heat pumps. It provides advisory, planning, installation and coordination services, including integration of solar and photovoltaic systems, ground probes, wood heating, district heating, cooling systems, electrical installations and assistance with energy regulations and subsidy applications.

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Products & services

Industry:Plumbing & Building Services
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Heizwert AG

✓ Offered8
Heating system renovation
Heating system renovations, heater replacements and replacement heating for existing properties; with consulting, planning and workmanship, often as a switch from oil or gas heating to renewable systems.
Heat pumps
Heat pumps as replacement heating, in particular air-to-water heat pumps and ground-source heat pumps; including planning, installation and implementation according to the heat pump system module.
Heating system planning and consulting
Consulting and planning for new heating systems, heating renovations and heating upgrades; including renewal strategy, heat generation, heat distribution and sizing.
Heating system installation
Skilled installation and workmanship for sustainable heating systems; from commissioning to proper installation of renewable heating solutions and associated components.
Renewable heating systems
Sustainable heating systems with solar thermal energy, photovoltaics, heat pumps, ground heat probes, wood heating and district heating systems; for older buildings and demand-optimized applications.
Subsidy applications and building submissions
Processing of subsidy applications, building submissions and the associated administrative coordination as part of heating projects and renovations.
Energy consulting and energy regulations
Support with energy regulations, funding and energy-related project questions around replacement heating, heat generation and sustainable heating systems.
Nanodistrict heating network
Mini district heating network for densely built-up areas; shared use with neighbours to cover a large portion of operations with renewable energy.
Trust & reputation

ranQ Trust Score of Heizwert AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Heizwert AG scores 91.6 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.85.724%
  • 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.99.010%
  • 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.100.08%
Heizwert AG scores 85.5 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.55.07%
Heizwert 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%
Heizwert AG scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Heizwert AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 48 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
4.8
of 5

Aggregated from 48 reviews across all connected sources

Sources
GGoogle4.848
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Grabenackerstrasse 4
4142 Münchenstein
Opening hours
Mon
07:30 - 11:45, 13:15 - 16:00
Tue
07:30 - 11:45, 13:15 - 16:00
Wed
07:30 - 11:45, 13:15 - 16:00
Thu
07:30 - 11:45, 13:15 - 16:00
Fri
07:30 - 11:45, 13:15 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.622.037
Founded
2000 · 26 years
Last commercial register change
April 13, 2026
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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