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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesFlooring & TilingSchnottwilKummer
Kummer Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of the company "Kummer Keramische Wand- und Bodenbeläge" consists of planning, consulting and executing work in the field of ceramic wall and floor coverings, natural stone coverings, mosaic and glass mosaic work, as well as the renovation and conversion of bathrooms. This also includes smaller masonry and plastering work, as well as repair work on ceramics and natural stones.

AI-generated
Offering

Products & services

Industry:Flooring & Tiling
✓ Offered7
Ceramic wall and floor coverings
Ceramic wall and floor coverings for new builds, conversions and renovations, indoors and outdoors, including work on single-family homes, apartments, kitchens and bathrooms.
Natural stone floor coverings
Natural stone floor coverings in various finishes and materials for new builds and conversions as well as renovations, indoors and outdoors.
Mosaic and glass mosaic work
Mosaic and glass mosaic for wall and floor areas as part of new builds, conversions and renovations.
Silicone joint work
Silicone joints for ceramic and natural stone—replace or renew the joints.
Bathroom refurbishments and bathroom renovations
Bathroom refurbishment, bathroom renovation, finishing work and repair work as part of new builds, conversions and renovations.
Minor masonry and plastering work
Minor masonry and plastering work as a complement to floor and wall covering, conversion and renovation work.
Repair work on ceramic and natural stone
Repair work for ceramic and natural stone, indoors and outdoors.
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3.9/5

Kummer

Trust & reputation

ranQ Trust Score of Kummer: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

Kummer scores 63.9 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.70.824%
  • 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.27.910%
  • 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.88.08%
Kummer scores 77.5 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.97.712%
  • 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%
Kummer scores 83.3 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).83.322%
Kummer 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

Kummer 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 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Diessbachstrasse 31
3253 Schnottwil
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
Sole proprietorship
UID
CHE-365.741.451
Founded
2012 · 14 years
Last commercial register change
January 6, 2012
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.
67.0
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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