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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionMärwilTschirren Thomann AG
Tschirren Thomann AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Tschirren Thomann AG is the execution of work in the field of building envelopes, particularly in the areas of: roofing (roof shapes such as pitched, flat, even, vaulted), facades (thermal insulation), metal roofing, scaffolding, and crane assembly work. The company thus offers comprehensive solutions for the exterior envelope of buildings.

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Products & services

Industry:Building ConstructionBuilding Maintenance
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4.3/5

Tschirren Thomann AG

Roofing
Sheet Metal Work
✓ Offered4
Roofing
Roofing for pitched, flat, level and arched roofs; careful workmanship using various materials, as well as short-notice orders.
Facades
Facade works for building envelopes, thermal insulation and specifications; with natural slate, Eternit and wooden shingles, as well as renovation of listed heritage buildings.
Building Sheet-Metal Work & Scaffolding Construction
Building sheet-metal work with gutters, downspouts, trims and dormer cladding; scaffolding construction as well as sheet metal made to measure in-house.
Fast-Erection Crane
Fast-erection crane work for construction and roofing projects; listed on the website as a separate service.
Trust & reputation

ranQ Trust Score of Tschirren Thomann AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

Tschirren Thomann AG scores 78.5 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.80.724%
  • 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.73.510%
  • 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.78.08%
Tschirren Thomann AG scores 83.5 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.86.512%
  • 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.70.07%
Tschirren Thomann 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%
Tschirren Thomann AG scores 14.3 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 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Tschirren Thomann AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 17 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
4.8
of 5

Aggregated from 17 reviews across all connected sources

Sources
GGoogle4.817
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Mettlenstrasse 7
9562 Märwil

At a glance

Legal form
Corporation
UID
CHE-320.574.429
Founded
2016 · 10 years
Last commercial register change
December 10, 2025
Employees
11 to 20
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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