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

About the company

The core activity of Churfirsten Heizungs-Service GmbH is the installation, repair and maintenance of heating systems, air conditioning systems and heat pumps, including the execution of burner replacements and control system conversions.

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Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered
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4.1/5

Churfirsten Heizungs-Service GmbH

6
Heat pump
Air-to-water, brine-to-water and indoor heat pumps; installation, maintenance, ChemRRV leak-tightness testing and subsidy application.
Heating system refurbishment
Replacement of oil, gas or electric heating systems; new heat pump or norm-compliant replacement of an oil heating system, including subsidy application, building permit application and noise protection documentation.
Air conditioning systems
Split and multi-split air conditioning systems from Mitsubishi and Samsung; installation, app control, heating and cooling, refrigerant lines and instructions.
Oil burner service
Maintenance and repair of oil burners from all common brands; emissions measurement MT1-2, burner replacement, control conversions and documentation.
Maintenance
Maintenance of heat pumps, oil burners and air conditioning systems; cleaning, inspection, optimization, ChemRRV leak-tightness testing, one-off or recurring.
Emergency
Emergency call-outs for heating failure, burner stop, blocked heat pump, control defect or leaking system; on weekdays with fast response time.
Trust & reputation

ranQ Trust Score of Churfirsten Heizungs-Service GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Churfirsten Heizungs-Service GmbH scores 86.7 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.89.124%
  • 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.79.710%
  • 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.88.08%
Churfirsten Heizungs-Service GmbH scores 61.5 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.50.012%
  • 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%
Churfirsten Heizungs-Service 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%
Churfirsten Heizungs-Service GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Churfirsten Heizungs-Service GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 22 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 22 reviews across all connected sources

Sources
GGoogle522
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Zettlereistrasse 11
8880 Walenstadt
Opening hours
Mon
07:30 - 18:00
Tue
07:30 - 18:00
Wed
07:30 - 18:00
Thu
07:30 - 18:00
Fri
07:30 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-378.475.112
Founded
2023 · 3 years
Last commercial register change
April 17, 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.88.06%
  • 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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