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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPainting & PlasteringWiedlisbachRudolf Kopp + Co.
Rudolf Kopp + Co. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "Rudolf Kopp + Co." is the execution of painting work and related services, in particular: interior and exterior painting, renovation, restoration, conversion and new construction, decorative work, ecological coatings, monument preservation, wallpapering, facade renovation, natural building materials and clay plasters, stucco and gilding. The company also offers consulting and planning services for these services and has specialized in the use of ecological and sustainable materials.

AI-generated
Offering

Products & services

Industry:Painting & Plastering
✓ Offered11
Painting work
Painter and wallpapering work for renovations, conversions, and new builds; painting in various colours, advice, project-phase support, and execution using modern and historical techniques.
Wallpapering
Wallpapering for residential and commercial rooms; classic wallpapers, unique wallpapers, printing techniques, colours, motifs, and materials for wall design.
Facade painting
Facade coatings with natural, mineral, and oil paints; eco-friendly finishes, mineral paints for façades and interior fit-outs, weather-resistant and renovation-friendly systems.
Natural building clay
Clay plasters and clay finishing plaster for walls and surfaces; natural building materials with moisture-balancing, diffusion-open, and room-climate properties.
Eco-friendly paint systems
Eco-friendly coatings with natural paints, mineral paints, lime paints, and glue-, casein-, or oil paints; also natural resin paints, silicate paints, as well as lime and clay plasters.
Mould remediation
Mould control and preventive treatment with fog-it®; decontamination of rooms, removal of mould and odours, and visual correction of mould damage.
Floor and wall coatings
Seamless mineral wall and floor coatings as well as epoxy and polyurethane coatings for work areas, residential spaces, and public areas.
Gilding
Gilding of pub signs, watches, walls, stucco ornaments, mirrors, statues, and works of art, as well as gold-gloss inscriptions.
Stucco work and plaster mouldings
Stucco work and plaster mouldings, including genuine plaster stucco, and decorative detailing of rooms with lighting and effect solutions.
Wall and ceiling systems (ALYOS)
Printed wall and ceiling claddings, custom panoramic decors, and individual ceiling and wall solutions with ALYOS design.
Maintenance of coatings
Maintenance and upkeep of coatings; guidance on renovation cycles, effects of weather, material care, and tips to extend service life.
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3.9/5

Rudolf Kopp + Co.

Trust & reputation

ranQ Trust Score of Rudolf Kopp + Co.: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Rudolf Kopp + Co. scores 58.4 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.55.624%
  • 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.49.510%
  • 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.78.08%
Rudolf Kopp + Co. scores 81.0 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%
Rudolf Kopp + Co. 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%
Rudolf Kopp + Co. scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Rudolf Kopp + Co. reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.8 out of 5 stars from 6 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 6 reviews across all connected sources

Sources
GGoogle3.86
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Galgenholzweg 3
4537 Wiedlisbach
Opening hours
Mon
07:15 - 12:00, 13:00 - 17:00
Tue
07:15 - 12:00, 13:00 - 17:00
Wed
07:15 - 12:00, 13:00 - 17:00
Thu
07:15 - 12:00, 13:00 - 17:00
Fri
07:15 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
General Partnership
UID
CHE-109.088.757
Founded
2001 · 25 years
Last commercial register change
March 17, 2009
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.
79.0
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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