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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesSpecialized Construction InstallationsWettingenGrassia Storen GmbH
Grassia Storen GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Grassia Storen GmbH is the consulting, installation and repair of light, weather and insect protection systems, including sun blinds, roller shutters, slat blinds, insect screens, interior shading systems and metal and wooden window shutters.

AI-generated
Offering

Products & services

Industry:Specialized Construction Installations
✓ Offered10
Advice, installation and repair of sun awnings and sun protection systems
Advice, installation and repair of sun awnings, roller shutters, louvered shutters, insect protection, interior shading and metal and wooden shutters.
Sun awnings
Shading solutions for terraces, balconies, façades and shop windows with various versions and design options.
Roller shutters
Roller shutters for sun protection, thermal insulation and burglary protection.
Louvered shutters
Louvered shutters for light control, room climate management and privacy protection.
Insect protection
Insect protection solutions for the home.
Interior shading
Interior shading with a wide choice of fabrics for soft light effects and various design preferences.
Metal and wooden shutters
Metal or wooden shutters for various building situations and harmonious integration.
New installations
Delivery and installation of all products.
Repairs
Repairs of all brands and systems by experienced fitters.
On-site service
Use of mobile workshops for repairs of light protection at the customer's premises.
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4.1/5

Grassia Storen GmbH

Trust & reputation

ranQ Trust Score of Grassia Storen GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Grassia Storen GmbH scores 76.1 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.73.524%
  • 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.67.110%
  • 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%
Grassia Storen GmbH scores 75.7 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.83.012%
  • 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%
Grassia Storen 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%
Grassia Storen GmbH scores 2.3 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 35.2.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grassia Storen GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 13 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
4.6
of 5

Aggregated from 13 reviews across all connected sources

Sources
GGoogle4.613
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Tägerhardstrasse 90
5430 Wettingen
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-369.321.504
Founded
2017 · 9 years
Last commercial register change
September 15, 2021
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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