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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsReinach BlFWT Wärmetechnik GmbH
FWT Wärmetechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of FWT Wärmetechnik GmbH is the planning, installation, maintenance and repair of heating and solar technology systems, including heat pumps and burner and control technology. The company also offers consulting and sales of heating solutions and works as an official factory representative for leading manufacturers in the field of heating technology.

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Products & services

Industry:Specialized Construction Installations
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4.4/5

FWT Wärmetechnik GmbH

✓ Offered
10
Heating systems
Heat pumps, gas heating systems and oil-fired heating systems; planning, installation, modernisation and maintenance for residential and commercial buildings.
Service and maintenance for heating and air-conditioning systems
Maintenance, cleaning, inspections and repairs for heat pumps, gas burners, oil burners, air-conditioning units, solar thermal systems and boilers.
Air-conditioning systems
Advice, planning, installation and maintenance of single-split and multi-split air-conditioning systems for apartments, houses and commercial premises.
Consulting for heating systems
Analysis of existing systems, clarification of requirements, review of optimisation measures and alternatives, and advice on energy efficiency, modernisation and funding options.
Fault rectification
24-hour on-call service for heating faults; rapid analysis and rectification of failures in heating systems.
Burner controls
Measurements, combustion testing and checks of the legal requirements for heating systems.
Control and regulation technology
Installation and optimisation of control systems for heating systems, tailored to energy demand and efficient operation.
Solar thermal
Planning, implementation and integration of solar thermal systems for domestic hot water and heating support.
Condition inspections of heating systems
Inspection of efficiency, safety and wear of existing heating installations to identify problems at an early stage.
Inspection in case of complaints
Analysis of reported defects in systems, inspection of affected components and development of a solution to restore operation.
Trust & reputation

ranQ Trust Score of FWT Wärmetechnik GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

FWT Wärmetechnik GmbH scores 82.6 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.84.124%
  • 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.65.210%
  • 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%
FWT Wärmetechnik GmbH scores 86.7 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.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%
FWT 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%
FWT Wärmetechnik GmbH scores 13.4 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.13.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

FWT Wärmetechnik GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 12 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 12 reviews across all connected sources

Sources
GGoogle512
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Christoph Merian-Ring 23
4153 Reinach Bl
Opening hours
Mon
07:30 - 12:00, 13:30 - 17:00
Tue
07:30 - 12:00, 13:30 - 17:00
Wed
07:30 - 12:00, 13:30 - 17:00
Thu
07:30 - 12:00, 13:30 - 17:00
Fri
07:30 - 12:00, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-114.490.800
Founded
2008 · 18 years
Last commercial register change
January 16, 2026
Employees
11 to 20
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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