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

About the company

Brenner AG, Tägerwilen provides building-envelope services including roofing, facade construction and timber construction. Its services include pitched and flat roofs, green roofs, sheet-metal work, lightning protection and maintenance.

AI-generated
Offering

Products & services

Industry:Roofing
✓ Offered6
Pitched Roofing
Pitched roofing for new builds, renovations and repairs; execution with a wide choice of colours, shapes and materials.
Flat Roofing
Flat roofing with green roofs, gravel surfacing or accessible roof areas; for additional usable space and roof renovations.
Façades
Rainscreen façades with fibre-cement panels, profiled sheet metal or wood; for new buildings and façade renovations.
Roof Windows
Roof windows for more daylight and visibility in the roof area; mentioned as part of roofing and sheet-metal work.
Sheet Metal Work
Sheet metal work on roofs with gutters, downpipes, flashings and metal roofs; including repairs and renovations.
Maintenance and Servicing
Regular inspections and maintenance contracts for pitched and flat roofs; report with condition assessment and proposed measures.
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4.0/5

Brenner AG, Tägerwilen

Trust & reputation

ranQ Trust Score of Brenner AG, Tägerwilen: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Brenner AG, Tägerwilen scores 57.6 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.67.124%
  • 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.52.910%
  • 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.35.08%
Brenner AG, Tägerwilen scores 89.3 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.70.07%
Brenner AG, Tägerwilen 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%
Brenner AG, Tägerwilen scores 22.9 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 35.22.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Brenner AG, Tägerwilen reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.4 out of 5 stars from 7 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Konstanzerstrasse 5
8274 Tägerwilen
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.549.706
Founded
2002 · 24 years
Last commercial register change
August 25, 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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