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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPainting & PlasteringSchlierenRomeo + Sohn GmbH
Romeo + Sohn GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Romeo + Sohn GmbH is the provision of craft services in the field of painting and plastering, particularly in the areas of new and renovation construction, plastering, renovations, facades, lightweight construction, fire protection and special painting.

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Offering

Products & services

Industry:Painting & Plastering
✓ Offered7
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3.9/5

Romeo + Sohn GmbH

New Builds and Alterations
Plastering work for new builds and renovations, with a stable base, protection against weather and mechanical damage, and durable finishes.
Plastering Work
Interior plastering for shell construction and alterations, improving indoor climate and energy efficiency while protecting against moisture, fire and sound.
Renovations
Coordination and execution of interior fit-out and facade design for new builds, full refurbishments and alterations, including planning, control and scheduling.
Facade Insulation
Insulation of exterior walls and facades, adapted to building conditions, to reduce energy consumption and improve thermal insulation.
Drywall Construction
Drywall construction for new and existing buildings, including partition walls, cladding, linings, insulation, built-ins, room-in-room systems and ceilings.
VKF Fire Protection
Fire protection solutions for different situations, including specialised execution in line with VKF requirements.
Painting Work
Painting work for interior and exterior areas, as a complementary service alongside plastering and facade work.
Trust & reputation

ranQ Trust Score of Romeo + Sohn GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Romeo + Sohn GmbH scores 62.1 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.75.024%
  • 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.40.910%
  • 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.50.08%
Romeo + Sohn GmbH 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.89.612%
  • 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%
Romeo + Sohn GmbH 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%
Romeo + Sohn GmbH scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Romeo + Sohn GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 4 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 4 reviews across all connected sources

Sources
GGoogle54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Schulstrasse 34
8952 Schlieren
Opening hours
Mon
07:00 - 19:00
Tue
07:00 - 19:00
Wed
07:00 - 19:00
Thu
07:00 - 19:00
Fri
07:00 - 19:00
Sat
08:00 - 12:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-144.413.655
Founded
2015 · 11 years
Last commercial register change
July 14, 2015
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.
88.0
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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