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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesSiebnenMächler Wärmetechnik GmbH
Mächler Wärmetechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Mächler Wärmetechnik GmbH is a service company specializing in the planning, installation, maintenance, and renovation of heating systems. The core activities include: * Renovations of heating systems in single-family and multi-family homes * Installation and maintenance of heat pumps, hybrid systems, air conditioning systems, wood heating systems (log wood) and solar systems * Sales and distribution of heat technical systems * Maintenance and repair work on heating systems * Combustion control, boiler descaling and oil line renovation The company offers a comprehensive range of services in the field of heat technology and positions itself as a competent partner for heating installations and renovations.

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Products & services

Industry:Plumbing & Building Services
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3.9/5

Mächler Wärmetechnik GmbH

✓ Offered10
Heating refurbishments
Heating refurbishments for single- and multi-family houses, from planning to execution, including service, fault rectification and selection of the appropriate system.
Heat pumps
Heat pumps for air/water and brine/water, with installation and placement indoors and outdoors, as well as service and refurbishment.
Solar and photovoltaic systems
Solar and photovoltaic systems, thermal solar energy, PV solar for electricity generation, and photovoltaic plug & play modules.
Wood heating systems
Wood heating systems as pellet heaters and log wood heaters for new and older buildings, providing CO2-neutral heat from renewable resources.
Hybrid systems
Hybrid systems for combining two systems, for example oil or gas with a heat pump, to reduce CO2 emissions.
Air-conditioning systems
Air-conditioning systems with installation and service for indoors and outdoors, including support with planning and execution.
Oil and gas heating systems
Oil and gas forced-draught burners as well as oil and gas boilers, including sales, installation, service, fault rectification and combustion control.
Control and regulation technology
Control and regulation technology for heating systems, with components and products from various manufacturers.
Boiler descaling
Boiler descaling as maintenance and upkeep service for existing hot water systems.
Oil line refurbishment
Oil line refurbishments for existing heating systems for renewing and maintaining the pipe routing.
Trust & reputation

ranQ Trust Score of Mächler Wärmetechnik GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Mächler Wärmetechnik GmbH scores 58.0 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.68.224%
  • 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.17.610%
  • 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%
Mächler Wärmetechnik GmbH scores 75.7 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.83.012%
  • 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%
Mächler Wärmetechnik GmbH scores 85.0 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).85.022%
Mächler Wärmetechnik GmbH scores 3.1 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 35.3.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Mächler Wärmetechnik GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Baumgartenweg 36
8854 Siebnen
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-485.393.514
Founded
2017 · 9 years
Last commercial register change
October 27, 2017
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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