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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesBoltigenArthur Riesen AG
Arthur Riesen AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company 'Die Riesen - Haustechnik AG' encompasses the planning, installation, maintenance and repair of building technical systems and installations, including: sanitary technology, plumbing, heating technology, solar systems, lightning protection systems, chimney construction, bathtub replacement and enamel repairs. The company also provides consulting and services in the field of building technology and deals with the latest technologies.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Sanitary installations
Planning, installation, renovation and repair of sanitary installations, bathrooms, shower partitions, fittings, boilers, drain unblocking and rainwater systems.
Heating systems
Planning, installation and renovation of heating systems, including heat pumps, pellets, firewood, wood chips, oil and gas installations, underfloor heating and radiators.
Sheet metal works
Gutters, downspouts, roof windows, chimney claddings and dormers made of copper, zinc, chromed steel or Prefa; complete sheet metal works as well as gutter cleaning and moss removal.
Solar systems
Installation of solar thermal systems and solar collectors for hot water production and heating support, with possible combination with existing heating systems.
Lightning protection
Planning and installation of lightning protection systems for existing and new buildings, including protective measures on the building envelope and inside.
Chimney construction
Single- and double-wall Schiedel chimneys and flue gas systems made of stainless steel or PP plastic, for gas, oil and solid fuels, also for retrofit installation.
Bath replacement
Bath replacement with Polybad bathtubs, dust-free removal of the old tub without damaging tiles, and installation of a new bathtub.
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4.2/5

Arthur Riesen AG

Trust & reputation

ranQ Trust Score of Arthur Riesen AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Arthur Riesen AG scores 73.9 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.81.624%
  • 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.58.610%
  • 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.70.08%
Arthur Riesen 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%
Arthur Riesen AG 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%
Arthur Riesen AG scores 9.7 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 35.9.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Arthur Riesen AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 9 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
5
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle59
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Sack
3766 Boltigen
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-103.283.421
Founded
1993 · 33 years
Last commercial register change
April 19, 2010
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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