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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesGüttingenWieser Roland Sanitär & Wasseraufbereitung
Wieser Roland Sanitär & Wasseraufbereitung Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Wieser Sanitär, Heizung und Wasseraufbereitung is the planning, consulting, execution, repair and maintenance of sanitary facilities, heating systems and water treatment plants, including drinking water filtration.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Plumbing work
Plumbing repairs, repairs of plumbing systems, fixing leaks, blocked drains and faulty fittings; work around the kitchen and bathroom including maintenance and advice.
Boiler installation and replacement
New installation and replacement of boilers for private and industrial applications; installation of small, wall-mounted and floor-standing water heaters depending on hot water demand.
Water treatment
Water treatment systems and water filtration for the entire domestic water installation; planning, installation, maintenance and service of existing systems.
Drinking water filtration
Drinking water filter systems for clean and healthy drinking water, especially under-sink models with Multipure filter technology; consultation, installation and service.
Water descaling
Professional water treatment systems to reduce limescale in drinking and domestic water; protection of pipes, heating elements, fittings and household appliances.
Consulting, planning and quotation preparation
Advice when purchasing products, planning and calculation of requirements, and preparation of non-binding quotations for plumbing, water treatment and filtration solutions.
Maintenance and service
Maintenance and service of existing plumbing systems, water treatment systems and drinking water filtration systems.
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3.8/5

Wieser Roland Sanitär & Wasseraufbereitung

Trust & reputation

ranQ Trust Score of Wieser Roland Sanitär & Wasseraufbereitung: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 88% · As of October 2026

Wieser Roland Sanitär & Wasseraufbereitung scores 53.3 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.68.224%
  • 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.17.610%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Wieser Roland Sanitär & Wasseraufbereitung scores 78.5 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%
Wieser Roland Sanitär & Wasseraufbereitung scores 83.3 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).83.322%
Wieser Roland Sanitär & Wasseraufbereitung scores 0.3 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 35.0.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Wieser Roland Sanitär & Wasseraufbereitung reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 88%, 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Sommeristrasse 8
8594 Güttingen

At a glance

Legal form
Sole proprietorship
UID
CHE-108.646.554
Founded
1997 · 29 years
Last commercial register change
November 7, 2025
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.67.06%
  • 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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