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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryCrafts & TradesRooferAffoltern Am AlbisKaufmann Dachtechnik GmbH
Kaufmann Dachtechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Kaufmann Dachtechnik GmbH is the provision of services in the field of roofing technology, particularly: Roofing (new construction, renovation, repair), sheet metal work (flat and pitched roofs), roof service, photovoltaics (in-roof photovoltaic systems and solar tiles), and roof renovations. The company offers customized solutions for individual needs and places emphasis on the highest standards of craftsmanship and the use of high-quality materials.

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Service area

Offering

Products & services

Industry:Roofer
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4.0/5

Kaufmann Dachtechnik GmbH

✓ Offered5
Roof coverings
Roof coverings for pitched roofs, flat roofs and special roof constructions; coverings with tiles, slate, metal or bitumen, including roof windows, drainage and insulation.
Sheet metal work
Sheet metal work for roof and building metalwork; roof drainage, gutters, downspouts, sheet metal roofs, facade cladding and sealing with copper, zinc and aluminium.
Renovations
Renovations of roofs, facades and interior rooms; modernisations, full renovations and energy renovations with insulation and modern technology.
Roof service
Roof service for maintenance, repair and inspections; cleaning gutters, checking seals, replacing damaged tiles and carrying out minor repairs.
Photovoltaics
Photovoltaic solutions for roofs; planning, installation, maintenance and storage solutions for photovoltaic systems and roof-integrated photovoltaic systems.
Trust & reputation

ranQ Trust Score of Kaufmann Dachtechnik GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Kaufmann Dachtechnik GmbH scores 61.9 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.60.024%
  • 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.88.08%
Kaufmann Dachtechnik GmbH scores 83.0 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%
Kaufmann Dachtechnik GmbH scores 86.7 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).86.722%
Kaufmann Dachtechnik GmbH scores 13.4 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 35.13.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Kaufmann Dachtechnik GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 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 November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle45
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Werkstrasse 8
8910 Affoltern Am Albis

At a glance

Legal form
Limited Liability Company
UID
CHE-114.915.343
Founded
2009 · 17 years
Last commercial register change
November 22, 2023
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHAffoltern am Albis
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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