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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSpecialized Construction ActivitiesTherwilFelix Steiner & Co., Umbau + Renovationen
Felix Steiner & Co., Umbau + Renovationen Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Felix Steiner + Co. consists of providing services in the field of construction craftsmanship, particularly: * Plastering work * Masonry work * Stucco work * Renovation and refurbishment of houses and apartments * Planning and construction management The company thus offers a comprehensive range of services for the construction industry, from planning and execution of renovations and refurbishments to the execution of specific craftsmanship such as plastering, masonry and stucco work.

AI-generated
Offering

Products & services

Industry:Specialized Construction Activities
✓ Offered7
Plastering work
Plastering works as main business, including interior and exterior work as well as repairs and additions for conversions and renovations.
Masonry work
Masonry work for conversions and renovations, including demolition work, protection of load-bearing elements and installation of new elements in the building structure.
Stucco work
Stucco work for ceiling rosettes, ceiling mouldings and impost cornices, as well as repairs and additions to existing ornaments.
Conversions
Conversion of houses and apartments with coordination of trades, demolition work, rebuilding and coordination with the architect and site supervisor.
Renovation
Renovation of houses and apartments with expertise, experience and careful planning, so that load-bearing elements and those to be preserved are taken into account.
Planning
Planning of conversions and renovations, with a considered sequence of the work and coordination of the trades involved.
Construction management
Construction management for conversion and renovation projects, coordinating tradespeople and aligning the execution steps.
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3.8/5

Felix Steiner & Co., Umbau + Renovationen

Trust & reputation

ranQ Trust Score of Felix Steiner & Co., Umbau + Renovationen: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Felix Steiner & Co., Umbau + Renovationen scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Felix Steiner & Co., Umbau + Renovationen 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%
Felix Steiner & Co., Umbau + Renovationen 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%
Felix Steiner & Co., Umbau + Renovationen 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

Felix Steiner & Co., Umbau + Renovationen reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Baslerstrasse 9
4106 Therwil

At a glance

Legal form
Limited Partnership
UID
CHE-106.459.685
Founded
1989 · 37 years
Last commercial register change
May 27, 2016
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.79.06%
  • 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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