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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesSheet Metal WorkDürrenäschH. Bertschi Spenglerei AG
H. Bertschi Spenglerei AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of H. Bertschi Spenglerei AG is the provision of high-quality roofing and sheet metal work, particularly: sheet metal work and building sheet metal work for old and new buildings, lightning protection for new and old buildings, special sealing, metal and profile work with modern CNC folding machines, manufacture and installation of aluminum window sills for facade renovations and new buildings, roofing and renovation, gutters, chimney cladding and metal roofs, copper and sheet metal work, including sheet metal roofs and copper roofs. The company also offers comprehensive consulting and planning for these works and works closely with architects, planners, builders, property owners and administrators.

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Offering

Products & services

Industry:Sheet Metal Work
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4.1/5

H. Bertschi Spenglerei AG

✓ Offered6
Sheet metal and roofing work
Sheet metal and roofing work for new builds and renovations, from tiled roofs and roof edges to sheet metal roofs, gutters, downpipes and wall copings.
Building sheet metal work
Building sheet metal work for existing and new buildings, including classic sheet metal work on the roof and walls, with precise execution according to customer requirements.
Lightning protection
Lightning protection for new and existing buildings, carried out as part of the company’s scope for structures and roof installations.
Special waterproofing
Special waterproofing in construction, complemented by expert execution and planning for new builds and renovations.
Metal and profile processing
Metal and profile processing with modern CNC press brakes, for perfectly fitting components and sheet metal solutions in construction.
ALU window sills
ALU window sills for façades, for renovations and new builds, including consultation and installation.
Trust & reputation

ranQ Trust Score of H. Bertschi Spenglerei AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

H. Bertschi Spenglerei AG scores 64.2 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.76.724%
  • 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.45.610%
  • 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.50.08%
H. Bertschi Spenglerei 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%
H. Bertschi Spenglerei AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
H. Bertschi Spenglerei AG scores 11.1 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 35.11.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

H. Bertschi Spenglerei AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 5 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 5 reviews across all connected sources

Sources
GGoogle55
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Alte Hallwilerstrasse 11
5724 Dürrenäsch

At a glance

Legal form
Corporation
UID
CHE-478.172.818
Founded
2011 · 15 years
Last commercial register change
July 5, 2011
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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