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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsMuhenZIMMERLI Haustechnik GmbH
ZIMMERLI Haustechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Zimmerli Haustechnik GmbH is the planning, installation and maintenance of heating and plumbing systems, including the use of renewable energy sources such as solar thermal systems and heat pumps. In addition, the company offers service and repair services for existing systems as well as cleaning and maintenance work.

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Products & services

Industry:Solar & Photovoltaics
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4.0/5

ZIMMERLI Haustechnik GmbH

Heating
Heating technology for new builds, conversions and renovations; design and installation of modern heating systems, including heat pumps and solar thermal systems.
Plumbing
Sanitary installations for residential and multi-family construction, industry and business; requirements for water, heating and air systems as well as work on plumbing installations.
Eco-Energy
Renewable energies for heating and domestic hot water preparation; solar thermal systems and heat pumps, from planning to installation.
Service and Repairs
Service and repairs for heating and plumbing systems as well as other systems; preventive maintenance and fault rectification.
BoilerFit
Boiler care and boiler cleaning to maintain proper function and prevent damage.
Cleanex
Cleaning services for sites and installations in the field of building services.
Trust & reputation

ranQ Trust Score of ZIMMERLI Haustechnik GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

ZIMMERLI Haustechnik GmbH scores 65.0 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.73.124%
  • 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.35.310%
  • 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%
ZIMMERLI Haustechnik GmbH scores 83.0 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%
ZIMMERLI Haustechnik 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%
ZIMMERLI Haustechnik GmbH scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

ZIMMERLI Haustechnik GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Römerweg 1
5037 Muhen
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Limited Liability Company
UID
CHE-115.842.617
Founded
2010 · 16 years
Last commercial register change
November 13, 2018
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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