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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsWürenlingenGraf Rymann Gebäudetechnik AG
Graf Rymann Gebäudetechnik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Graf Rymann Gebäudetechnik AG encompasses the planning, realization, and maintenance of building technology systems, particularly: sanitary installations, heating systems, ventilation systems, and solar systems. The company offers these services for new buildings, renovations, and conversions of buildings, positioning itself as a comprehensive service provider in the field of building technology.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered4
Sanitary installations
Sanitary installations for conversions and new builds, including advice, planning, execution, and service for dripping pipes, leaky showers, faulty flushing systems and shower toilets.
Heating installations
Heating installations and heating refurbishments with analysis of existing systems, advice on heating technologies, fixed prices, and a single contact person for all matters.
Ventilation systems
Advice, planning and execution of controlled residential ventilation and comfort ventilation for airtight buildings and the Minergie standard, with heat recovery.
Solar systems
Planning and use of solar systems for heating energy and domestic hot water, depending on location and available area, on the roofs of residential properties.
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4.0/5

Graf Rymann Gebäudetechnik AG

Trust & reputation

ranQ Trust Score of Graf Rymann Gebäudetechnik AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Graf Rymann Gebäudetechnik AG scores 65.0 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.53.324%
  • 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.68.910%
  • 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%
Graf Rymann Gebäudetechnik AG scores 80.4 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.79.212%
  • 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%
Graf Rymann Gebäudetechnik AG scores 85.0 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).85.022%
Graf Rymann Gebäudetechnik AG scores 5.4 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 35.5.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Graf Rymann Gebäudetechnik AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 3.9 out of 5 stars from 14 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
3.9
of 5

Aggregated from 14 reviews across all connected sources

Sources
GGoogle3.914
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Orchideenweg 4
5303 Würenlingen
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-417.368.143
Founded
2018 · 8 years
Last commercial register change
May 31, 2018
Employees
11 to 20
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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