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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,888 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesOstermundigenSanitär Weiss AG
Sanitär Weiss AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Sanitär Weiss AG is the planning, installation, maintenance and repair of sanitary facilities, including all types of sanitary installations, water softening systems, shower and toilet facilities, small heating installations and special installations in the food industry. Additionally, the company offers an emergency service and detection of water damage.

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Products & services

Industry:Plumbing & Building Services
✓ Offered9
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4.0/5

Sanitär Weiss AG

Plumbing installations
Plumbing installations of all kinds for renovation of existing buildings, modernisation and new construction for commercial and residential construction; work on water and waste-water pipes and lines in and around the house.
Repair, maintenance and optimisation of sanitary systems
Repair work on water taps, cisterns, washbasins, WC units and mirror cabinets; maintenance, optimisation as well as drain and pipe cleaning.
Boiler descaling
Boiler descaling with replacement of seals, replacement of the magnesium protection and cleaning of the electric component from limescale.
Water damage detection and leak finding
Detection of water damage and leak finding as well as remediation of water damage in collaboration with specialist firms.
Small heating installations
Personal consultation and planning, delivery and installation of heat emission systems, as well as installation and relocation of wall radiators.
Conversions and full conversions
Conversions in the kitchen and bathroom area, renovation work and construction of new bathrooms; delivery and installation of bathroom and kitchen appliances.
General contractor
Project management for conversions, from planning through organisation to execution, with a single point of contact.
Special installations for the food sector
Special installations for the food sector.
Emergency service
Emergency service by arrangement for urgent sanitary plumbing work.
Trust & reputation

ranQ Trust Score of Sanitär Weiss AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Sanitär Weiss AG scores 62.8 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.51.924%
  • 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.63.210%
  • 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.95.08%
Sanitär Weiss AG 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%
Sanitär Weiss AG scores 83.3 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).83.322%
Sanitär Weiss AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Sanitär Weiss AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 11 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
3.8
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle3.811
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Oberdorfstrasse 37
3072 Ostermundigen
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.963.156
Founded
1979 · 47 years
Last commercial register change
July 8, 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.
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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