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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationRomanshornSenn + Widmer AG
Senn + Widmer AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Senn + Widmer AG is the manufacture and application of seamless floor and wall coatings, particularly made of polyurethane and epoxy resin, as well as the creation of individual solutions for new buildings, renovations and restorations. This also includes the production of outdoor kitchens and furniture in concrete look, as well as the manufacture of cement paste coatings for floors and walls.

AI-generated
Offering

Products & services

Industry:Sealing & Insulation
✓ Offered8
Jointless floor and wall coatings
Jointless floor and wall coatings for residential and commercial areas, as decorative or functional floor and wall coverings, also for new build, renovation and refurbishment.
Natural cement trowel coatings
Cement-based trowel coatings for floors and walls with individual colours and textures, suitable for living areas, wet areas and representative commercial premises.
PU flooring
Elastic, impact sound-insulating polyurethane floorings for apartments, offices, schools, laboratories and other residential and commercial areas.
PU Comfort trowel coating
Polyurethane coating with a trowelled-look finish with various designs for residential and commercial areas, customised in colours and surface gloss.
Industrial flooring coatings
Epoxy resin and colour quartz floor coatings for concrete and other cementitious substrates, including slip-resistant, conductive and hygienic systems.
Parking coatings
Coatings for multi-storey car parks and underground garages with OS-8, OS-11a and OS-11b systems for heavily mechanically loaded, drivable surfaces.
Wall coatings
Jointless wall coatings as an alternative to tiles in wet rooms, with decorative structures or smooth surfaces in different gloss levels.
Walk on Nature
Jointless natural floors made from vegetable oils, linseed oil, cork, wood and other natural raw materials, with multiple flooring systems for residential and project areas.
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4.3/5

Senn + Widmer AG

Trust & reputation

ranQ Trust Score of Senn + Widmer AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Senn + Widmer AG scores 73.6 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.80.024%
  • 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.61.010%
  • 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.70.08%
Senn + Widmer AG scores 85.5 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.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%
Senn + Widmer 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%
Senn + Widmer AG scores 45.7 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 35.45.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Senn + Widmer AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.9 out of 5 stars from 10 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
4.9
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle4.910
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Kreuzlingerstrasse 43
8590 Romanshorn
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-103.045.910
Founded
1997 · 29 years
Last commercial register change
May 16, 2018
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.
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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