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

About the company

Grimm Heiztechnik AG provides heating technology solutions and related services for single-family and multi-family homes, agricultural operations, commercial properties and public buildings. Its services and products include heat pumps, pellet and wood heating systems, solar and district heating solutions, oil and gas systems, controls, refrigeration equipment, and installation, commissioning and maintenance services.

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Products & services

Industry:Plumbing & Building Services
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Grimm Heiztechnik AG

✓ Offered6
Heating systems
Heating systems for single-family homes, multi-family houses, agricultural businesses, commercial properties and public buildings; advice, design, installation, maintenance and servicing of heating systems from all brands.
Heat pumps
Heat pumps with ground probes, groundwater and air-to-water systems; advice, design and installation for space heating and domestic hot water production.
Heating service
Advice, design, installation and commissioning as well as a service subscription with inspections, fault rectification, replacement-part installation and checks of heat pumps and oil burners.
Solar systems
Solar systems with thermal solar collectors for domestic hot water preparation and support for heating; custom-built systems for roofs, façades or canopies.
Refrigeration technology
Room air-conditioning units for residential and work areas; planning and installation of energy-efficient cooling equipment with automatic output adjustment and air purification.
District heating network
District heating networks for multiple properties with central heat generation and distribution network; implementation of wood-chip plants for entire supply areas.
Trust & reputation

ranQ Trust Score of Grimm Heiztechnik AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Grimm Heiztechnik AG scores 75.3 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.74.624%
  • 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.74.910%
  • 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.78.08%
Grimm Heiztechnik 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%
Grimm Heiztechnik 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%
Grimm Heiztechnik AG scores 37.1 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 35.37.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grimm Heiztechnik AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 18 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 18 reviews across all connected sources

Sources
GGoogle4.618
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Riedmatte 2
2576 Lüscherz

At a glance

Legal form
Corporation
UID
CHE-115.555.690
Founded
2010 · 16 years
Last commercial register change
June 9, 2023
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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