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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringSpiezA. Zimmermann AG Spiez
A. Zimmermann AG Spiez Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of A. Zimmermann AG Spiez is the provision of installation and planning services in the areas of sanitation, heating, water supply and bathroom renovation, as well as the execution of service activities in these areas. The company also offers planning and modernization of heating systems, renovation of sanitary facilities and bathroom design.

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Offering

Products & services

Industry:Technical Consulting & EngineeringPlumbing & Building Services
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4.2/5

A. Zimmermann AG Spiez

✓ Offered6
Sanitary installations
Conversions and refurbishments, new builds, water supply, wastewater disposal, solar installations, rainwater utilisation, bathroom refurbishments, water treatment, descaling of water heaters, industrial facilities.
Heating installations
Conversions and refurbishments, new builds, district heating, solar thermal installations, heat pumps, pellet heating systems, apartment ventilation, oil-fired heating systems, system module installation.
Planning for building services
H/L/S projects, energy technical documentation, detailed design H/L/S, bathroom planning, swimming pool planning.
Service and repairs
Service number, water damage, problems with building services systems H/L/S, repairs to heating and sanitary systems, burner service, telecommunications support.
Water supply
Fire-fighting water lines, reservoirs, pressure boosting systems, pumping stations and sanitary distribution networks for water supply systems.
Bathroom renovation
Bathroom refurbishments and bathroom planning for remodelling existing bathrooms.
Trust & reputation

ranQ Trust Score of A. Zimmermann AG Spiez: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

A. Zimmermann AG Spiez scores 74.4 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.76.324%
  • 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.67.110%
  • 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%
A. Zimmermann AG Spiez scores 85.5 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.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%
A. Zimmermann AG Spiez scores 85.0 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).85.022%
A. Zimmermann AG Spiez scores 10.0 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 35.10.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

A. Zimmermann AG Spiez reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 13 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
4.7
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.713
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Obere Bahnhofstrasse 50
3700 Spiez
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
08:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-110.621.285
Founded
2004 · 22 years
Last commercial register change
October 20, 2016
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.
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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