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

About the company

The core activity of Normdach Swiss AG is the provision of services in the field of roofing and flat roof work, including new buildings, renovations, maintenance, lightning protection systems, perimeter sealing, sheet metal work, flat roof work and hard coatings.

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Offering

Products & services

Industry:RoofingSheet Metal Work
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4.4/5

Normdach Swiss AG

✓ Offered8
Structural waterproofing and flat roofing works
All types of structural waterproofing, flat roof works, new builds, refurbishments and repairs; for industrial, commercial, residential and public buildings.
Building sheet metalwork
Building sheet metalwork around roofs and buildings, including integrated sheet metalwork as part of waterproofing and flat roof solutions.
Maintenance of flat roofs
Maintenance of flat roofs with or without service contracts, including a call-out service for quick assistance.
Lightning protection systems
Design and installation of lightning protection systems for buildings and roof systems as part of new builds, upgrades and refurbishment work.
Glazing in flat roofs
Glazing components in flat roofs, in particular light domes and rooflight systems, as an addition to waterproofing and roof build-up.
Perimeter waterproofing and insulation
Perimeter waterproofing and insulation for structures, supplemented by further sealing and insulation work.
Green roof systems
Green roofs in connection with flat roof work and structural waterproofing.
Hard surfacing
Hard surfacing such as terrace and walkway surfaces in the vicinity of roofing, terrace and outdoor surface work.
Trust & reputation

ranQ Trust Score of Normdach Swiss AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Normdach Swiss AG scores 85.3 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.87.024%
  • 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.73.510%
  • 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.95.08%
Normdach Swiss 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%
Normdach Swiss AG 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%
Normdach Swiss AG scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Normdach Swiss AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 17 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 17 reviews across all connected sources

Sources
GGoogle517
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Belchenstrasse 12
4310 Rheinfelden

At a glance

Legal form
Corporation
UID
CHE-195.421.820
Founded
2010 · 16 years
Last commercial register change
July 11, 2022
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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