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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingVolketswilRoland Studer AG
Roland Studer AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the provision of construction services in the field of roofing and sheet metal work.

AI-generated
Offering

Products & services

Industry:RoofingSheet Metal Work
✓ Offered7
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4.4/5

Roland Studer AG

Pitched and flat roofing
Pitched and flat roofing works, terrace coverings and roof greening; bituminous waterproofing, sheet and liquid plastic membrane roofing, roof coverings, roof windows, solar installations and fall protection systems.
Sheet-metal roofing
Metal roofs, cladding of dormers and chimneys, gutters and downpipe cladding, fascia/soffit cladding, as well as repairs of all kinds.
Lightning protection
Installation, remedial works and inspection of lightning protection systems in accordance with cantonal lightning protection regulations by qualified specialists.
Facade construction
Ventilated facades made of Eternit or sheet metal.
Roof service
Roof maintenance, annual inspections, rectification of local defects and wear; service contracts, small jobs and advice via the partner company dachplus.
Emergency service
24/7 emergency service for problems with roofs and building envelopes via the partner company dachplus.
Terrace coverings
Design of terraces, balconies and footpaths as well as other areas where flooring is required.
Trust & reputation

ranQ Trust Score of Roland Studer AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Roland Studer AG scores 77.8 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.78.124%
  • 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%
Roland Studer AG scores 94.3 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.90.07%
Roland Studer 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%
Roland Studer AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Roland Studer AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 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
4.8
of 5

Aggregated from 11 reviews across all connected sources

Sources
GGoogle4.811
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Geissbüelstrasse 7
8604 Volketswil
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.157.488
Founded
1979 · 47 years
Last commercial register change
March 5, 2026
Employees
51 to 100
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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