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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsGrosswangenU. Siegenthaler GmbH
U. Siegenthaler GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company's core activity is the milling of floor heating systems into existing subfloors, particularly in old buildings or renovations, to enable the subsequent installation of floor heating systems.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered3
Grooving in floor heating
Retrofit floor heating by milling into existing subfloors, including planning of the heating circuits, laying the heating pipes and, on request, connecting, filling and venting.
Removing floor coverings
Remove floor coverings as part of renovations, in particular old tiles or parquet before routing in a floor heating system.
Grinding off adhesive and disposing of rubble
Grind off adhesive residues and dispose of the resulting rubble; on request, as additional preparatory work for floor construction.
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4.4/5

U. Siegenthaler GmbH

Trust & reputation

ranQ Trust Score of U. Siegenthaler GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

U. Siegenthaler GmbH scores 95.2 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.93.924%
  • 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.98.510%
  • 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.95.08%
U. Siegenthaler GmbH scores 74.1 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.79.212%
  • 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%
U. Siegenthaler 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%
U. Siegenthaler GmbH scores 6.9 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 35.6.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

U. Siegenthaler GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 47 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 47 reviews across all connected sources

Sources
GGoogle547
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Winkelhalde 1a
6022 Grosswangen
Opening hours
Mon
07:30 - 19:00
Tue
07:30 - 19:00
Wed
07:30 - 19:00
Thu
07:30 - 19:00
Fri
07:30 - 19:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-184.119.067
Founded
2018 · 8 years
Last commercial register change
August 17, 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.
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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