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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceNiedergösgenJMZ Gebäudetechnik GmbH
JMZ Gebäudetechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of JMZ Gebäudetechnik GmbH is the planning, installation, maintenance and repair of sanitary, heating, ventilation and other building technology systems for private households, large companies and other customers. The company offers individual solutions and services to achieve an optimal indoor climate and high energy efficiency.

AI-generated
Offering

Products & services

Industry:Building MaintenancePlumbing & Building Services
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3.9/5

JMZ Gebäudetechnik GmbH

Solar & Photovoltaics
✓ Offered4
Sanitary installations and plumbing service
Sanitary installations for small businesses, industry and commerce, bathroom modernisations, repair service, water heaters, descaling of boilers, water treatment and pressure boosting systems, cleaning of all drains.
Heating systems and heat service
Complete heating systems for small businesses, industry and commerce, solar thermal systems, heating replacement, use of renewable energies, installation, maintenance, quick repairs and servicing.
Ventilation and air-conditioning systems
Complete ventilation systems for small businesses, industry and commerce, standard and comfort ventilation installations, maintenance and repair service, regular inspection and maintenance work.
Building maintenance and facilities service
Maintenance of sanitary, heating and ventilation systems, documentation and inspection, emergency service in case of faults as well as recurring maintenance and quick repairs.
Trust & reputation

ranQ Trust Score of JMZ Gebäudetechnik GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

JMZ Gebäudetechnik GmbH scores 64.2 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.60.924%
  • 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.52.910%
  • 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.88.08%
JMZ Gebäudetechnik 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%
JMZ Gebäudetechnik 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%
JMZ Gebäudetechnik GmbH scores 2.0 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 35.2.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

JMZ Gebäudetechnik GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 4.1 out of 5 stars from 7 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
4.1
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.17
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Mühleweg 12
5013 Niedergösgen
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-418.820.329
Founded
2017 · 9 years
Last commercial register change
February 6, 2024
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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