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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionHeidenDach Zenuni GmbH
Dach Zenuni GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Dach Zenuni GmbH is the planning, execution and maintenance of roofing work, interior finishing, terrace and balcony systems, as well as the sealing of buildings. This includes in particular: Roof renovation and new construction (pitched roofs, flat roofs), Installation of roof windows and skylights, Interior finishing and renovation (e.g. conversion of attic spaces), Construction of terraces and balconies, Sealing of buildings (e.g. foundation sealing, liquid plastic sealing), Maintenance and repair of roof and facade systems. The company thus offers comprehensive services in the field of roofing and building sealing as well as interior finishing.

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Products & services

Industry:Interior Construction
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4.1/5

Dach Zenuni GmbH

Roofing
✓ Offered8
Roofing
Pitched and flat roofs; covering with tiles, sealing with polymer bitumen or plastic products, insulation, underlay and suitable functional or protective layers.
Roof renovation
Renovation of roofs, energy efficiency upgrades, restoration of functionality and aesthetics.
Roof windows
Advice, installation of new roof windows in pitched and flat roofs, maintenance and replacement of existing skylights.
Roof maintenance
Annual inspection of roofs for early detection of blockages, contamination and damage.
Terrace and balcony flooring
Laying terrace flooring on roof terraces and balconies, with wood and alternative coverings, even with minimal build-up heights.
Plinth waterproofing
Sealing and renovation of plinth areas against moisture, salt and splash water, also in ground-contact areas.
Liquid plastic waterproofing
Waterproofing of complex details on site, in particular window and door connections, balconies, balcony balustrades and flat roof connections.
Interior fit-out
Fit-out of unheated attic spaces, roof insulation from inside, laying vinyl or parquet flooring, and installing new walls.
Trust & reputation

ranQ Trust Score of Dach Zenuni GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Dach Zenuni GmbH scores 80.7 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.82.524%
  • 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.61.010%
  • 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.100.08%
Dach Zenuni GmbH scores 65.0 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.58.012%
  • 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%
Dach Zenuni GmbH 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%
Dach Zenuni GmbH scores 5.1 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 35.5.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Dach Zenuni GmbH 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 10 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 10 reviews across all connected sources

Sources
GGoogle510
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rosentalstrasse 12b
9410 Heiden
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-385.446.593
Founded
2022 · 4 years
Last commercial register change
June 30, 2025
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.
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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