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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesRooferNänikonReal Dachbau GmbH
Real Dachbau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Real Dachbau GmbH is a roofing company offering pitched and flat roof construction, waterproofing, sheet-metal work (Spenglerei), roof window installation, fall-protection systems, roof maintenance and facade cladding.

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Service area

Offering

Products & services

Industry:Roofer
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4.0/5

Real Dachbau GmbH

✓ Offered8
Pitched roof
Plan and build pitched roofs, including roof structure, insulation, roofing, roof windows, as well as drainage and final inspection.
Flat roof
Plan and build flat roofs with load-bearing structure, thermal insulation, waterproofing, drainage and green-roof, terrace-roof and gravel surfacing systems.
Sheet-metal roofing
Sheet-metal work for roofs and façades, including gutters, downpipes, wall and chimney flashings, verge and eaves flashings, as well as bespoke fabrications.
Waterproofing
Waterproofing of walls, ceilings and floors, including bitumen sheets, plastic and elastomer membranes, liquid-applied plastics, and mineral sealing slurries.
Roof windows
Install, retrofit and maintain roof windows, including planning, adjustment of the roof structure, waterproofing, interior cladding, as well as replacement and controls.
Roof service & maintenance
Roof inspections, cleaning, minor repairs, storm-damage service and regular maintenance for roofing, waterproofing, drainage and connections.
Façade cladding
Façade cladding made of metal, wood, plastic, HPL and fibre-cement panels as well as render or brickwork cladding, including insulation and installation.
Fall protection
Fall protection for construction sites, including planning, risk analysis, scaffolding, side protection, catch platforms, net systems, PPE and fixed anchorage points.
Trust & reputation

ranQ Trust Score of Real Dachbau GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of November 2026

Real Dachbau GmbH scores 68.0 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.70.08%
Real Dachbau GmbH scores 67.8 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.64.612%
  • 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%
Real Dachbau GmbH scores 86.7 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).86.722%
Real Dachbau GmbH 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

Real Dachbau GmbH reaches a ranQ Trust Score of 4.0 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 November 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

Zürichstrasse 59
8606 Nänikon
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 18:00
Sat
07:00 - 18:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-389.077.684
Founded
2021 · 5 years
Last commercial register change
December 13, 2021
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • ZHUster
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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