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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberWallisellenBitzer Sanitär AG
Bitzer Sanitär AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Bitzer Sanitär AG includes the planning, consulting and execution of sanitary and heating technical systems, including the installation and maintenance of heat pumps, solar technology, ventilation technology and sanitary facilities. The company also offers 24-hour service and engineering services.

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Service area

Offering

Products & services

Industry:PlumberSheet metal worker
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Bitzer Sanitär AG

✓ Offered11
Sanitary installations
Sanitary installations for drinking water, wastewater and gas lines in the house; supply of the bathroom and kitchen, professional drainage of foul wastewater.
Bathroom renovation
Renovation of bathrooms from planning and advice to completion; on request, coordination of all trades up to final cleaning.
Heating systems
Installation, servicing, maintenance and repair of heating systems; advice on hot water generation and energy-efficient heating solutions.
Heat pumps
Air-to-water heat pumps and ground-source heat pumps for using ambient heat for heating and reducing heating costs.
Solar installations
Solar systems for domestic hot water preparation and as a secondary energy source; advice on sizing and subsidies.
Engineering
Consulting and planning for building services for new-build and refurbishment projects; HLS planning and coordination for sustainable, energy-efficient solutions.
Ventilation technology
Controlled apartment ventilation and comfort ventilation for new builds and renovations; with fresh air supply, air quality, sound insulation and low energy consumption.
24-hour service
24/7 service and standby duty for emergencies, around the clock on 365 days, also outside opening hours.
Washing and drying
Advice and replacement of energy-efficient washing and drying appliances; as a regional representative of V-Zug for multi-family and single-family houses.
Water softening systems
Delivery and installation of BWT water softening systems for soft water, less limescale, reduced cleaning effort and improved cost-effectiveness.
Ökoboiler
Conversion of conventional boilers to Ökoboiler to reduce energy costs and CO2 emissions.
Trust & reputation

ranQ Trust Score of Bitzer Sanitär AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of November 2026

Bitzer Sanitär AG scores 74.1 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.84.710%
  • 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%
Bitzer Sanitär AG scores 89.3 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.70.07%
Bitzer Sanitär 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%
Bitzer Sanitär AG scores 77.1 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 35.77.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Bitzer Sanitär AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.3 out of 5 stars from 27 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 27 reviews across all connected sources

Sources
GGoogle4.327
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rotackerstrasse 26
8304 Wallisellen
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-102.019.755
Founded
1993 · 33 years
Last commercial register change
July 14, 2026
Employees
11 to 20

Active in 1 of 26 cantons

  • ZHZurich
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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