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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet metal workerLaupen BeFritz Zimmermann AG
Fritz Zimmermann AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Fritz Zimmermann AG plans and installs building services systems for heating, plumbing and solar technology. Its services also include sheet-metal work, drinking water supply, and maintenance, repair and renovation work.

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Service area

Offering

Products & services

Industry:Sheet metal workerPhotovoltaics
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4.0/5

Fritz Zimmermann AG

✓ Offered7
Heating
Planning and installation of conventional heating systems as well as the use of renewable energies; heat pumps, wood-fired heating, thermal solar use, oil and gas heating, connections to local and district heating, maintenance and renovation.
Plumbing
Advice, planning and execution of plumbing installations; design of customised bathrooms for conversions and new builds, as well as coordination with the other trades.
Solar technology
Planning and installation of solar systems for domestic hot water, heating support, heating swimming pool water and special applications with heat recovery.
Roof sheet metal work
Sheet metal work for gutters, downpipes, roof connections, bargeboard and eave flashings, wall, chimney and wall flashings, metal roofs as well as repairs and roof inspections.
Lightning protection systems
Individual advice, site-specific planning, quotation preparation and installation of lightning protection systems in accordance with the guidelines of building insurers.
Water supply
Maintenance of public water supply including network expansion, as well as planning and installation of water supply systems for private households, industry and agriculture.
Rainwater harvesting
Planning of rainwater harvesting systems for WC flushing, garden irrigation, washing machines, pressure washers and watering water; with tank, pump and automatic top-up.
Trust & reputation

ranQ Trust Score of Fritz Zimmermann AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Fritz Zimmermann AG scores 63.8 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.65.024%
  • 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.49.510%
  • 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%
Fritz Zimmermann AG scores 80.4 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.79.212%
  • 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%
Fritz Zimmermann AG scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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).86.722%
Fritz Zimmermann AG scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Fritz Zimmermann AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.3 out of 5 stars from 6 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.3
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.36
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Mühlestrasse 21
3177 Laupen Be
Opening hours
Mon
07:15 - 12:00, 13:00 - 17:00
Tue
07:15 - 12:00, 13:00 - 17:00
Wed
07:15 - 12:00, 13:00 - 17:00
Thu
07:15 - 12:00, 13:00 - 17:00
Fri
07:15 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-199.636.816
Founded
2018 · 8 years
Last commercial register change
June 22, 2018
Employees
11 to 20

Active in 1 of 26 cantons

  • BEBern
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.
100.0
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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